43 results on '"Loo RK"'
Search Results
2. Association between 5-alpha reductase inhibition and risk of hip fracture.
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Jacobsen SJ, Cheetham TC, Haque R, Shi JM, Loo RK, Jacobsen, Steven J, Cheetham, T Craig, Haque, Reina, Shi, Jiaxiao M, and Loo, Ronald K
- Abstract
Context: For more than 15 years, 5-alpha reductase inhibitors, which block the conversion of testosterone to dihydrotestosterone, have been used in the treatment of benign prostatic hyperplasia (BPH). Short-term studies show no effects of these agents on bone metabolism,but long-term data are not available.Objective: To assess the association between use of 5-alpha reductase inhibitors (eg, finasteride) for BPH and occurrence of hip fracture.Design, Setting, and Patients: Population-based case-control study using data from Kaiser Permanente Southern California, a managed care organization with more than 3 million members. Case patients included 7076 men 45 years and older with incident hip fracture from 1997-2006. Control patients were 7076 men without incident hip fracture, optimally matched at a 1:1 ratio to case patients on age and medical center. Electronic information on pharmaceutical use was used to identify use of finasteride from 1991 forward.Results: Overall, 2547 (36%) and 2488 (35%) case and control patients, respectively, had a diagnosis of BPH (P = .30), and 109 (1.5%) and 141 (2.0%) of case and control patients, respectively, had been exposed to finasteride prior to the index date (matched odds ratio, 0.77; 95% confidence interval, 0.59-1.00; P = .04). There was no suggestion of a dose-response relationship between exposure to 5-alpha reductase inhibitors when the exposure was stratified into tertiles of total exposure (P = .12). By contrast, there was a slightly higher prevalence of alpha-blocker use in case vs control patients (32% vs 30%, respectively; P = .04).Conclusions: Exposure to 5-alpha reductase inhibitors was not associated with increased risk of hip fracture. The reduction in risk observed with exposure to 5-alpha reductase inhibitors and the modest increase in risk associated with exposure to alpha-blockers require replication and warrant further investigation. [ABSTRACT FROM AUTHOR]- Published
- 2008
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3. A captive audience bringing the WISEWOMAN program to South Dakota prisoners.
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Khavjou OA, Clarke J, Hofeldt RM, Lihs P, Loo RK, Prabhu M, Schmidt N, Stockmyer CK, and Will JC
- Published
- 2007
4. The Influence of Dietary Isothiocyanates on the Effectiveness of Mitomycin C and Bacillus Calmette-Guérin in Treating Nonmuscle-Invasive Bladder Cancer.
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Kwan ML, Wang Z, Haque R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Pratt R, Goniewicz M, Loo RK, Aaronson DS, Quesenberry CP Jr, Zhang Y, Ambrosone CB, Kushi LH, and Tang L
- Subjects
- Humans, Male, Female, Prospective Studies, Aged, Middle Aged, Treatment Outcome, Antibiotics, Antineoplastic therapeutic use, Adjuvants, Immunologic therapeutic use, Diet, Neoplasm Invasiveness, Follow-Up Studies, Urinary Bladder Neoplasms pathology, Urinary Bladder Neoplasms drug therapy, Mitomycin therapeutic use, BCG Vaccine therapeutic use, BCG Vaccine administration & dosage, Isothiocyanates therapeutic use, Isothiocyanates pharmacology, Neoplasm Recurrence, Local prevention & control, Neoplasm Recurrence, Local epidemiology
- Abstract
Purpose: Nonmuscle-invasive bladder cancer (NMIBC) has high recurrence rates and is often treated with mitomycin C (MMC) and bacillus Calmette-Guérin (BCG). Their efficacy relies on phase 2 enzyme metabolism and immune response activation, respectively. Dietary isothiocyanates, phytochemicals in cruciferous vegetables, are phase 2 enzyme inducers and immunomodulators, and may impact treatment outcomes. We investigated the modifying effects of cruciferous vegetable and isothiocyanate intake on recurrence risk following MMC or BCG treatment., Materials and Methods: Self-reported cruciferous vegetable intake, estimated isothiocyanate intake, and urinary isothiocyanate metabolites were collected from 1158 patients with incident NMIBC in the prospective Be-Well Study. Hazard ratios (HRs) and 95% CIs were calculated from Cox proportional hazards regression models for risk of first recurrences, and random effects Cox shared frailty models for multiple recurrences., Results: Over median follow-up of 23 months, 343 (30%) recurrences occurred. Receipt of MMC and BCG was associated with decreased risks of first recurrence (MMC: HR = 0.58; 95% CI: 0.46-0.73; BCG: HR = 0.66; 95% CI: 0.49-0.88) and multiple recurrences (MMC: HR = 0.55; 95% CI: 0.44-0.68; BCG: HR = 0.72; 95% CI: 0.55-0.95). Patients receiving BCG and having high intake (>2.4 servings/mo), but not low intake, of raw cruciferous vegetables had reduced risk of recurrence (HR: 0.56; 95% CI: 0.36-0.86; P for interaction = .02) and multiple recurrences (HR: 0.51; 95% CI: 0.34-0.77; P for interaction < .001). The inverse association between MMC receipt and recurrence risk was not modified., Conclusions: For NMIBC patients who receive induction BCG, increasing consumption of raw cruciferous vegetables could be a promising strategy to attenuate recurrence risk.
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- 2024
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5. Environmental and occupational exposures and prognosis in patients with non-muscle-invasive bladder cancer in the Be-Well Study.
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Wang Z, Kwan ML, Haque R, Pratt R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Loo RK, Aaronson DS, Quesenberry CP, Ambrosone CB, Kushi LH, and Tang L
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- Humans, Male, Female, Aged, Middle Aged, Prognosis, Prospective Studies, Risk Factors, California epidemiology, Disease Progression, Neoplasm Recurrence, Local epidemiology, Proportional Hazards Models, Asbestos adverse effects, Neoplasm Staging, Arsenic adverse effects, Arsenic toxicity, Aged, 80 and over, Non-Muscle Invasive Bladder Neoplasms, Urinary Bladder Neoplasms epidemiology, Urinary Bladder Neoplasms pathology, Occupational Exposure adverse effects, Occupational Exposure statistics & numerical data, Environmental Exposure adverse effects
- Abstract
Bladder cancer is primarily diagnosed as non-muscle-invasive bladder cancer (NMIBC), with high recurrence and progression rates. Environmental and occupational exposures to carcinogens are well-known risk factors for developing bladder cancer, yet their effects on prognosis remain unknown. In the Be-Well Study, a population-based prospective cohort study of 1472 Kaiser Permanente patients newly diagnosed with NMIBC in California from 2015 to 2019, we examined history of environmental and occupational exposures in relation to tumor stage and grade at initial diagnosis by multivariable logistic regression, and subsequent recurrence and progression by Cox proportional hazards regression. Exposure to environmental and occupational carcinogens was significantly associated with increased risk of progression (hazard ratio (HR) = 1.79; 95% CI, 1.04-3.09), specifically with increased progression to muscle-invasive disease (HR = 2.28; 95% CI, 1.16-4.50). Exposures to asbestos and arsenic were associated with increased odds of advanced stage at diagnosis (asbestos: odds ratio (OR) = 1.43 [95% CI, 1.11-1.84]; arsenic: OR = 1.27 [95% CI, 1.01-1.63]), and formaldehyde exposure was associated with increased risk of recurrence (HR = 1.38; 95% CI, 1.12-1.69). Our findings suggest that considering a patient's history of these exposures may benefit current risk stratification systems in better tailoring clinical care and improving prognosis among patients with NMIBC., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2024
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6. Modifying Effects of Genetic Variations on the Association Between Dietary Isothiocyanate Exposure and Non-muscle Invasive Bladder Cancer Prognosis in the Be-Well Study.
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Wang Z, Kwan ML, Haque R, Singh PK, Goniewicz M, Pratt R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Loo RK, Aaronson DS, Quesenberry CP, Zhang Y, Ambrosone CB, Kushi LH, and Tang L
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- Humans, Male, Female, Middle Aged, Prognosis, Aged, Prospective Studies, NF-E2-Related Factor 2 genetics, NF-E2-Related Factor 2 metabolism, Arylamine N-Acetyltransferase genetics, Non-Muscle Invasive Bladder Neoplasms, Urinary Bladder Neoplasms genetics, Urinary Bladder Neoplasms pathology, Isothiocyanates pharmacology, Isothiocyanates administration & dosage, Polymorphism, Single Nucleotide, Diet
- Abstract
Scope: Dietary isothiocyanate (ITC) exposure from cruciferous vegetable (CV) intake may improve non-muscle invasive bladder cancer (NMIBC) prognosis. This study aims to investigate whether genetic variations in key ITC-metabolizing/functioning genes modify the associations between dietary ITC exposure and NMIBC prognosis outcomes., Methods and Results: In the Bladder Cancer Epidemiology, Wellness, and Lifestyle Study (Be-Well Study), a prospective cohort of 1472 incident NMIBC patients, dietary ITC exposure is assessed by self-reported CV intake and measured in plasma ITC-albumin adducts. Using Cox proportional hazards regression models, stratified by single nucleotide polymorphisms (SNPs) in nine key ITC-metabolizing/functioning genes, it is calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for recurrence and progression. The rs15561 in N-acetyltransferase 1 (NAT1) is alter the association between CV intake and progression risk. Multiple SNPs in nuclear factor E2-related factor 2 (NRF2) and nuclear factor kappa B (NFκB) are modify the associations between plasma ITC-albumin adduct level and progression risk (p
int < 0.05). No significant association is observed with recurrence risk. Overall, >80% study participants are present with at least one protective genotype per gene, showing an average 65% reduction in progression risk with high dietary ITC exposure., Conclusion: Despite that genetic variations in ITC-metabolizing/functioning genes may modify the effect of dietary ITCs on NMIBC prognosis, dietary recommendation of CV consumption may help improve NMIBC survivorship., (© 2024 Wiley‐VCH GmbH.)- Published
- 2024
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7. Associations of dietary isothiocyanate exposure from cruciferous vegetable consumption with recurrence and progression of non-muscle-invasive bladder cancer: findings from the Be-Well Study.
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Wang Z, Kwan ML, Haque R, Goniewicz M, Pratt R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Loo RK, Aaronson DS, Quesenberry CP, Zhang Y, Ambrosone CB, Kushi LH, and Tang L
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- Humans, Vegetables, Prospective Studies, Isothiocyanates pharmacology, Albumins, Neoplasm Recurrence, Local, Non-Muscle Invasive Bladder Neoplasms, Brassicaceae, Urinary Bladder Neoplasms prevention & control
- Abstract
Background: High recurrence and progression rates are major clinical challenges for non-muscle-invasive bladder cancer (NMIBC). Dietary isothiocyanates (ITCs), phytochemicals primarily from cruciferous vegetables (CV), show strong anticancer activities in preclinical BC models, yet their effect on NMIBC prognosis remains unknown., Objectives: This study aimed to investigate the associations of dietary ITC exposure at diagnosis with NMIBC recurrence and progression., Methods: The study analyzed 1143 participants from the Be-Well study, a prospective cohort of newly diagnosed NMIBC cases in 2015-2019 with no prior history of BC. Dietary ITC exposure was indicated by self-reported CV intake, estimated ITC intake, urinary metabolites, and plasma ITC-albumin adducts. Cox proportional hazards regression models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for recurrence and progression, and unconditional logistic regression models were used to calculate odds ratios (ORs) and 95% CIs for delayed and multiple recurrence., Results: Over a mean follow-up of 25 mo, 347 (30%) developed recurrence and 77 (6.7%) had disease progression. Despite no significant associations with the overall risk of recurrence, urinary ITC metabolites (OR: 1.96; 95% CI: 1.01, 4.43) and dietary ITC intake (OR: 2.13; 95% CI: 1.03, 4.50) were associated with late recurrence after 12-mo postdiagnosis compared with before 12-mo postdiagnosis. Raw CV intake was associated with reduced odds of having ≥2 recurrences compared with having one (OR: 0.34; 95% CI: 0.16, 0.68). Higher plasma concentrations of ITC-albumin adducts were associated with a reduced risk of progression, including progression to muscle-invasive disease (for benzyl ITC, HR: 0.40; 95% CI: 0.17, 0.93; for phenethyl ITC, HR: 0.40; 95% CI: 0.19, 0.86)., Conclusions: Our findings indicate the possible beneficial role of dietary ITCs in NMIBC prognosis. Given the compelling preclinical evidence, increasing dietary ITC exposure with CV intake could be a promising strategy to attenuate recurrence and progression risks in patients with NMIBC., (Copyright © 2023 American Society for Nutrition. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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8. Smoking Behaviors and Prognosis in Patients With Non-Muscle-Invasive Bladder Cancer in the Be-Well Study.
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Kwan ML, Haque R, Young-Wolff KC, Lee VS, Roh JM, Ergas IJ, Wang Z, Cannavale KL, Ambrosone CB, Loo RK, Aaronson DS, Quesenberry CP, Kushi LH, and Tang L
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- Adult, Child, Female, Humans, Male, Young Adult, Prognosis, Prospective Studies, Smoking epidemiology, Cannabis, Electronic Nicotine Delivery Systems, Hallucinogens, Urinary Bladder Neoplasms epidemiology, Urinary Bladder Neoplasms etiology
- Abstract
Importance: Tobacco smoking is an established risk factor associated with bladder cancer, yet its impact on bladder cancer prognosis is unclear., Objective: To examine associations of use of tobacco (cigarettes, pipes, and cigars), e-cigarettes, and marijuana with risk of recurrence and progression of non-muscle-invasive bladder cancer (NMIBC) and to explore use of smoking cessation interventions., Design, Setting, and Participants: The Be-Well Study is a prospective cohort study of patients with NMIBC diagnosed from 2015 to 2019 and followed-up for 26.4 months in the Kaiser Permanente Northern and Southern California integrated health care system. Eligibility criteria were age at least 21 years, first NMIBC diagnosis (stages Ta, Tis, or T1), alive, and not in hospice care. Exclusion criteria were previous diagnosis of bladder cancer or other cancer diagnoses within 1 year prior to or concurrent with NMIBC diagnosis. Data were analyzed from April 1 to October 4, 2022., Exposures: Use of cigarettes, pipes, cigars, e-cigarettes, and marijuana was reported in the baseline interview. Use of smoking cessation interventions (counseling and medications) was derived from electronic health records., Main Outcomes and Measures: Hazard ratios (HRs) and 95% CIs of recurrence and progression of bladder cancer were estimated by multivariable Cox proportional hazards regression., Results: A total of 1472 patients (mean [SD] age at diagnosis, 70.2 [10.8%] years; 1129 [76.7%] male patients) with NMIBC were enrolled at a mean (SD) of 2.3 (1.3) months after diagnosis, including 874 patients (59.4%) who were former smokers and 111 patients (7.5%) who were current cigarette smokers; 67 patients (13.7%) smoked pipes and/or cigars only, 65 patients (4.4%) used e-cigarettes, 363 patients (24.7%) used marijuana. Longer cigarette smoking duration and more pack-years were associated with higher risk of recurrence in a dose-dependent manner, with the highest risks for patients who had smoked for 40 or more years (HR, 2.36; 95% CI, 1.43-3.91) or 40 or more pack-years (HR, 1.97; 95% CI, 1.32-2.95). There was no association of having ever smoked, being a former or current cigarette smoker, and years since quit smoking with recurrence risk. No associations with pipes, cigars, e-cigarettes, or marijuana were found. Of 102 patients offered a smoking cessation intervention, 57 (53.8%) received an interventions after diagnosis, with female patients more likely than male patients to engage in such interventions (23 of 30 female patients [76.7%] vs 34 of 76 male patients [44.7%]; P = .003)., Conclusions and Relevance: These findings suggest that longer duration and more pack-years of cigarette smoking were associated with higher risk of NMIBC recurrence. Cigarette smoking remains a critical exposure before and after diagnosis in survivors of NMIBC.
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- 2022
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9. Evaluation of the New American Urological Association Guidelines Risk Classification for Hematuria.
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Woldu SL, Ng CK, Loo RK, Slezak JM, Jacobsen SJ, Tan WS, Kelly JD, Lough T, Darling D, van Kessel KEM, de Jong JJ, van Criekinge W, Shariat SF, Hiar A, Brown S, Boorjian SA, Barocas DA, Svatek RS, and Lotan Y
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- Adult, Aged, Cohort Studies, Female, Humans, Incidence, Male, Middle Aged, Practice Guidelines as Topic, Prospective Studies, Risk Assessment, Societies, Medical, United States, Urinary Bladder Neoplasms epidemiology, Urology, Hematuria classification, Hematuria etiology, Urinary Bladder Neoplasms complications
- Abstract
Purpose: Microhematuria is a prevalent condition and the American Urological Association has developed a new risk-stratified approach for the evaluation of patients with microhematuria. Our objective was to provide the first evaluation of this important guideline., Materials and Methods: This multinational cohort study combines contemporary patients from 5 clinical trials and 2 prospective registries who underwent urological evaluation for hematuria. Patients were stratified into American Urological Association risk strata (low, intermediate or high risk) based on sex, age, degree of hematuria, and smoking history. The primary end point was the incidence of bladder cancer within each risk stratum., Results: A total of 15,779 patients were included in the analysis. Overall, 727 patients (4.6%) were classified as low risk, 1,863 patients (11.8%) were classified as intermediate risk, and 13,189 patients (83.6%) were classified as high risk. The predominance of high risk patients was consistent across all cohorts. A total of 857 bladder cancers were diagnosed with a bladder cancer incidence of 5.4%. Bladder cancer was more prevalent in men, smokers, older patients and patients with gross hematuria. The cancer incidence for low, intermediate and high risk groups was 0.4% (3 patients), 1.0% (18 patients) and 6.3% (836 patients), respectively., Conclusions: The new risk stratification system separates hematuria patients into clinically meaningful categories with differing likelihoods of bladder cancer that would justify evaluating the low, intermediate and high risk groups with incremental intensity. Furthermore, it provides the relative incidence of bladder cancer in each risk group which should facilitate patient counseling regarding the risks and benefits of evaluation for bladder cancer.
- Published
- 2021
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10. Population Management Approach to Kidney Stone Care Improves Patient Compliance to Preventive Measures and Reduces Resource Utilization in Patients at High Risk for Stone Recurrence.
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Goharderakhshan RZ, Crain NA, Ng CK, de Cógáin M, Castillo C, West M, and Loo RK
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Introduction: Nephrolithiasis is a chronic condition with 5 to 10-year recurrence rates as high as 50%. Stone recurrence can be reduced by implementing American Urological Association kidney stone medical management guidelines, which recommend additional metabolic testing for high risk, recurrent and interested first-time stone formers. However, clinician adherence to guidelines is variable, and patient compliance with preventive evaluations is low. We evaluated our kidney stone population management program's role in patient compliance with completing American Urological Association metabolic studies. We assessed the program's impact on office encounters, operating room procedures and emergency department visits for known high risk kidney stone patients., Methods: A retrospective review of electronic medical records between 2009 and 2017 identified 4,029 kidney stone patients. A total of 873 patients were at high risk for kidney stone recurrence. In 2013, we established a population management program in which high risk patients were referred and followed by a nurse case manager. Patients were contacted by email or telephone if metabolic serum and urine collections were incomplete. Office, operating room and emergency department visits were compared before and after the program's implementation., Results: Metabolic evaluation orders increased from 17% to 35% in our institution's urology department. Patient compliance with recommended studies improved from <10% to 82%, and reductions in office visits by 48%, surgical procedures by 38% and emergency department encounters by 40% were observed., Conclusions: Our program improved patient compliance with American Urological Association recommended studies for high risk kidney stone patients. Reductions in stone events may have been due to our program but require further study in the future.
- Published
- 2021
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11. Disparities in Stage at Diagnosis in an Equal-access Integrated Delivery System: A Retrospective Cohort Study of 7244 Patients With Bladder Cancer.
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Danforth KN, Luong TQ, Yi DK, Yamamoto A, Kawatkar AA, Kim PH, Loo RK, Sidell MA, and Williams SG
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- Black or African American statistics & numerical data, Age Factors, Aged, Aged, 80 and over, California epidemiology, Delivery of Health Care, Integrated statistics & numerical data, Female, Hispanic or Latino statistics & numerical data, Humans, Male, Middle Aged, Neoplasm Staging, Retrospective Studies, Sex Factors, Urinary Bladder Neoplasms epidemiology, Urinary Bladder Neoplasms pathology, White People statistics & numerical data, Health Status Disparities, Urinary Bladder pathology, Urinary Bladder Neoplasms diagnosis
- Abstract
Background: Disparities in bladder cancer survival by race/ethnicity and gender are likely related to differences in diagnosis. We assessed disparities in stage at diagnosis and potential contributing factors within a large, integrated delivery system., Patients and Methods: We conducted a retrospective cohort study of 7244 patients with bladder cancer age ≥ 21 years diagnosed from January 2001 to June 2015 within Kaiser Permanente Southern California. Bivariate analyses compared stage at diagnosis - as well as comorbidities, health plan membership length, and health care utilization prior to diagnosis - by race/ethnicity, gender, and age. Multivariable generalized linear mixed models with urologist as a random effect were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for diagnosis of muscle-invasive bladder cancer (MIBC) versus non-muscle-invasive bladder cancer., Results: In multivariable analyses, stage at diagnosis varied significantly by race/ethnicity (P < .001). Non-Hispanic black patients had significantly higher odds of being diagnosed with MIBC than non-Hispanic white patients (OR, 1.33; 95% CI, 1.05-1.67), whereas Asian patients had significantly lower odds (OR, 0.67; 95% CI, 0.49-0.91). Women were significantly more likely to be diagnosed with MIBC than men (OR, 1.40; 95% CI, 1.22-1.61). Non-Hispanic black women had the highest proportion (39%) of MIBC diagnoses. Among Hispanic and Asian patients, a greater proportion of diagnoses occurred at younger ages., Conclusions: Health care coverage within an equal-access system did not eliminate disparities in stage at diagnosis by race/ethnicity or gender. Studies are needed to identify etiologic factors and aspects of care delivery (eg, patient-physician interactions) that may affect the diagnostic process to inform efforts to improve health equity., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2020
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12. Care Quality and Variability in the Use of Intravesical Therapy for Initial Treatment of Nonmuscle Invasive Bladder Cancer Within a Large, Diverse Integrated Delivery System.
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Danforth KN, Sidell MA, Luong TQ, Yi DK, Yamamoto A, Kawatkar AA, Kim PH, Loo RK, and Williams SG
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- Administration, Intravesical, Aged, Aged, 80 and over, California, Cohort Studies, Delivery of Health Care, Integrated, Female, Humans, Male, Middle Aged, Neoplasm Invasiveness, Practice Patterns, Physicians' statistics & numerical data, Retrospective Studies, Urinary Bladder Neoplasms pathology, Adjuvants, Immunologic administration & dosage, Antineoplastic Agents administration & dosage, BCG Vaccine administration & dosage, Quality of Health Care, Urinary Bladder Neoplasms drug therapy
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Objectives: To examine treatment variability, disparities, and quality among newly diagnosed nonmuscle invasive bladder cancer (NMIBC) patients, and to identify factors associated with treatment use in a large, diverse integrated delivery system., Methods: Retrospective cohort study of 5386 NMIBC patients diagnosed between January 2001 and June 2015 within Kaiser Permanente Southern California. Electronic health data were used to identify treatment outcomes and patient, provider, and tumor characteristics. Outcomes were use of (1) postoperative intravesical chemotherapy, (2) induction Bacille Calmette-Guérin (BCG) immunotherapy, and (3) any intravesical therapy. Multivariable odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using generalized linear mixed models with a binary outcome and urologist as a random effect., Results: From 2001 to 2015, 41% of newly diagnosed NMIBC patients were treated with intravesical therapy. Postoperative chemotherapy use increased significantly over this period (OR per-year = 1.16, 95% CI: 1.07-1.25). BCG use was strongly associated with tumor characteristics: patients with high-grade or carcinoma in situ tumors were more likely to receive BCG (OR = 10.10, 95% CI: 8.39-12.16). Few treatment differences were found by sex or race/ethnicity, but were observed by age. Wide treatment variability across urologists was observed, with some urologists never using intravesical therapy as part of initial treatment while others almost always used it. Differences across urologists accounted for more variability in postoperative chemotherapy (intraclass correlation coefficient = 0.52) than BCG immunotherapy (intraclass correlation coefficient = 0.11) use., Conclusion: Substantial variability in initial treatment of NMIBC was observed across urologists, accounting for tumor, patient, and provider characteristics. Results suggest a considerable opportunity for quality improvement programs to reduce unwanted treatment variability and improve care for patients., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2019
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13. AUTHOR REPLY.
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Danforth KN, Kim PH, Sidell MA, Loo RK, and Williams SG
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- 2019
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14. The Be-Well Study: a prospective cohort study of lifestyle and genetic factors to reduce the risk of recurrence and progression of non-muscle-invasive bladder cancer.
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Kwan ML, Kushi LH, Danforth KN, Roh JM, Ergas IJ, Lee VS, Cannavale KL, Harrison TN, Contreras R, Loo RK, Aaronson DS, Quesenberry CP, Tritchler D, Ghai NR, Quinn VP, Ambrosone CB, Zhang Y, and Tang L
- Subjects
- Aged, Aged, 80 and over, California epidemiology, Cancer Survivors, Diet, Disease Progression, Female, Humans, Life Style, Male, Middle Aged, Neoplasm Recurrence, Local genetics, Neoplasm Recurrence, Local prevention & control, Prospective Studies, Urinary Bladder Neoplasms genetics, Neoplasm Recurrence, Local epidemiology, Urinary Bladder Neoplasms epidemiology
- Abstract
Purpose: Bladder cancer is one of the top five cancers diagnosed in the U.S. with a high recurrence rate, and also one of the most expensive cancers to treat over the life-course. However, there are few observational, prospective studies of bladder cancer survivors., Methods: The Bladder Cancer Epidemiology, Wellness, and Lifestyle Study (Be-Well Study) is a National Cancer Institute-funded, multi-center prospective cohort study of non-muscle-invasive bladder cancer (NMIBC) patients (Stage Ta, T1, Tis) enrolled from the Kaiser Permanente Northern California (KPNC) and Southern California (KPSC) health care systems, with genotyping and biomarker assays performed at Roswell Park Comprehensive Cancer Center. The goal is to investigate diet and lifestyle factors in recurrence and progression of NMIBC, with genetic profiles considered, and to build a resource for future NMIBC studies., Results: Recruitment began in February 2015. As of 30 June 2018, 1,281 patients completed the baseline interview (774 KPNC, 511 KPSC) with a recruitment rate of 54%, of whom 77% were male and 23% female, and 80% White, 6% Black, 8% Hispanic, 5% Asian, and 2% other race/ethnicity. Most patients were diagnosed with Ta (69%) or T1 (27%) tumors. Urine and blood specimens were collected from 67% and 73% of consented patients at baseline, respectively. To date, 599 and 261 patients have completed the 12- and 24-month follow-up questionnaires, respectively, with additional urine and saliva collection., Conclusions: The Be-Well Study will be able to answer novel questions related to diet, other lifestyle, and genetic factors and their relationship to recurrence and progression among early-stage bladder cancer patients.
- Published
- 2019
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15. The Use of 5-Alpha Reductase Inhibitors to Manage Benign Prostatic Hyperplasia and the Risk of All-cause Mortality.
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Wallner LP, DiBello JR, Li BH, Van Den Eeden SK, Weinmann S, Ritzwoller DP, Abell JE, D'Agostino R Jr, Loo RK, Aaronson DS, Horwitz RI, and Jacobsen SJ
- Subjects
- Aged, Cause of Death, Cohort Studies, Humans, Male, Middle Aged, Retrospective Studies, Risk Assessment, 5-alpha Reductase Inhibitors therapeutic use, Adrenergic alpha-Antagonists therapeutic use, Prostatic Hyperplasia drug therapy, Prostatic Hyperplasia mortality
- Abstract
Objective: To compare the risk of mortality among men treated for benign prostatic hyperplasia (BPH) with 5 alpha-reductase inhibitors (5ARI) to those treated with alpha-blockers (AB) in community practice settings., Methods: We employed a retrospective matched cohort study in 4 regions of an integrated healthcare system. Men aged 50 years and older who initiated pharmaceutical treatment for BPH and/or lower urinary tract symptoms between 1992 and 2008 and had at least 3 consecutive prescriptions that were eligible and followed through 2010 (N = 174,895). Adjusted hazard ratios were used to estimate the risk of mortality due to all-causes associated with 5ARI use (with or without concomitant ABs) as compared to AB use., Results: In this large and diverse sample with 543,523 person-years of follow-up, 35,266 men died during the study period, 18.9% of the 5ARI users and 20.4% of the AB users. After adjustment for age, medication initiation year, race, region, prior AB history, Charlson score, and comorbidities, 5ARI use was not associated with an increased risk of mortality when compared to AB use (Adjusted hazard ratios: 0.64, 95% confidence interval: 0.62, 0.66)., Conclusion: Among men receiving medications for BPH in community practice settings, 5ARI use was not associated with an increased risk of mortality when compared to AB use. These data provide reassurance about the safety of using 5ARIs in general practice to manage BPH and/or lower urinary tract symptoms., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
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16. Health-related quality of life outcomes from a contemporary prostate cancer registry in a large diverse population.
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Chien GW, Slezak JM, Harrison TN, Jung H, Gelfond JS, Zheng C, Wu E, Contreras R, Loo RK, and Jacobsen SJ
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- Age Factors, Aged, Brachytherapy adverse effects, Brachytherapy methods, California, Cohort Studies, Follow-Up Studies, Humans, Male, Middle Aged, Neoplasm Grading, Prostatectomy adverse effects, Prostatectomy methods, Prostatic Neoplasms mortality, Prostatic Neoplasms pathology, Registries, Retrospective Studies, Risk Assessment, Robotic Surgical Procedures adverse effects, Robotic Surgical Procedures methods, Survival Rate, Treatment Outcome, Watchful Waiting, Prostate-Specific Antigen blood, Prostatic Neoplasms psychology, Prostatic Neoplasms therapy, Quality of Life
- Abstract
Objective: To assess the health-related quality of life (HRQoL) of patients with prostate cancer up to 24 months after treatment in a contemporary large diverse population., Patients and Methods: Patients with newly diagnosed prostate cancer from March 2011 to January 2014 in our healthcare system were included. The Expanded Prostate Cancer Index Composite (EPIC-26) questionnaire was administered before treatment, and at 1, 3, 6, 12, 18, and 24 months after treatment up to November 2014 for all methods of treatment. The Kruskall-Wallis test was used to compare the distribution of each EPIC-26 domain score at each time point, and mixed models were used to assess the overall scores over the period after treatment., Results: In all, 5 727 patients were included. There were data for 3 422, 2 329, 2 017, 1 922, 1 772, 1 260, and 837 patients before treatment, and at 1, 3, 6, 12, 18, and 24 months after treatment, respectively. At 1 month, bowel scores were the lowest for patients that had had radiation therapy, and urinary irritative symptoms were the lowest for those who had had brachytherapy. There were sexual function declines for all the treatment methods, with surgery having the steepest decline; open radical prostatectomy (ORP) had a greater decline than robot-assisted laparoscopic prostatectomy (RALP). Patients who underwent RALP had a better return of sexual function, approaching that of brachytherapy and radiation therapy at 24 months. Urinary incontinence (UI) also declined the most in surgical patients, with RALP patients improving slightly more than ORP patients at 12-24 months., Conclusions: Patients' HRQoL after prostate cancer treatment varies by treatment method. Notably, sexual function recovers most for RALP patients. UI remains worse at 24 months after surgery, compared to other methods of prostate cancer treatment., (© 2017 The Authors BJU International © 2017 BJU International Published by John Wiley & Sons Ltd.)
- Published
- 2017
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17. Evaluation of microscopic hematuria and risk of urologic cancer in female patients.
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Lippmann QK, Slezak JM, Menefee SA, Ng CK, Whitcomb EL, and Loo RK
- Subjects
- Adult, Age Factors, California epidemiology, Cohort Studies, Databases, Factual, Female, Hematuria urine, Humans, Logistic Models, Middle Aged, Multivariate Analysis, Odds Ratio, Retrospective Studies, Risk Assessment, Risk Factors, Urologic Neoplasms urine, Hematuria epidemiology, Smoking epidemiology, Urologic Neoplasms epidemiology
- Abstract
Background: Urologic cancer has a lower prevalence in women compared with men; however, there are no differences in the recommended evaluation for women and men with microscopic hematuria., Objectives: The purpose of this study was to identify risk factors that are associated with urologic cancer in women with microscopic hematuria and to determine the applicability of a hematuria risk score for women., Study Design: We conducted a retrospective cohort study within an integrated healthcare system in Southern California. All urinalyses with microscopic hematuria (>3 red blood cells per high-power field) that were performed from 2009-2015 were identified. Women who were referred for urologic evaluation were entered into a prospective database. Clinical and demographic variables that included the presence of gross hematuria in the preceding 6 months were recorded. The cause of the hematuria, benign or malignant, was entered into the database. Cancer rates were compared with the use of chi-square and logistic regression models. Adjusted risk ratios of urologic cancer were estimated with the use of multivariate regression analysis. We also explored the applicability of a previously developed, gender nonspecific, hematuria risk score in this female cohort., Results: A total of 2,705,696 urinalyses were performed in women during the study period, of which 552,119 revealed microscopic hematuria. Of these, 14,539 women were referred for urologic evaluation; clinical data for 3573 women were entered into the database. The overall rate of urologic cancer was 1.3% (47/3573). In women <60 years old, the rate of urologic cancer was 0.6% (13/2053) compared with 2.2% (34/1520) in women ≥60 years old (P<.01). In women who reported a history of gross hematuria, the rate of urologic cancer was 5.8% (20/346) compared with a 0.8% (27/3227) in women with no history of gross hematuria (P<.01). In multivariate analysis, > 60 years old (odds ratio, 3.1; 95% confidence interval, 1.6-5.9), a history of smoking (odds ratio, 3.2; 95% confidence interval, 1.8-5.9), and a history of gross hematuria in the previous 6 months (odds ratio, 6.2; 95% confidence interval, 3.4-11.5) were associated with urologic cancers. A higher microscopic hematuria risk score was associated with an increased risk of cancer in this test cohort (P<.01). Women in the highest risk group had a urologic cancer rate of 10.8% compared with a rate of 0.5% in the lowest risk group., Conclusions: In this female population, >60 years old and a history of smoking and/or gross hematuria were the strongest predictors of urologic cancer. Absent these risk factors, the rate of urologic cancer did not exceed 0.6%. A higher hematuria risk score correlated significantly with the risk of urologic cancer in this female test cohort., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2017
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18. Ten-Year Trends in Preventive Service Use Before and After Prostate Cancer Diagnosis: A Comparison with Noncancer Controls.
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Wallner LP, Slezak JM, Loo RK, Bastani R, and Jacobsen SJ
- Subjects
- Aged, California, Forecasting, Humans, Male, Middle Aged, Early Detection of Cancer statistics & numerical data, Early Detection of Cancer trends, Preventive Health Services statistics & numerical data, Preventive Health Services trends, Prostatic Neoplasms prevention & control
- Abstract
Context: Few studies have assessed the longer-term quality of preventive care in prostate cancer (PCa) survivors., Objective: To compare the rates of preventive services among PCa survivors five years before and after diagnosis, to men without PCa., Design: Men enrolled in Kaiser Permanente Southern California with newly diagnosed PCa (2002-2008) were matched 1:1 to men without a PCa diagnosis on age, race, and timing of prostate-specific antigen test (N = 31,180). The use of preventive services, including colorectal cancer screening, diabetes tests, lipid panels, and influenza and pneumococcal vaccinations was assessed 5 years before and after diagnosis (or index date for controls)., Main Outcome Measures: Relative rates (RRs) of use were calculated for cases and controls separately and compared using Poisson regression, adjusting for comorbidities and outpatient utilization in 2014., Results: Overall, the rates of preventive services were lower among men with PCa vs men without PCa. However, in the 5 years after diagnosis, rates of preventive service use for all services were greater among PCa survivors vs men without PCa (colorectal cancer: RR = 1.05, 95% confidence interval [CI] = 1.01-1.10; lipids: RR = 1.10, 95% CI = 1.08-1.11; hemoglobin A
1C : RR = 1.17, 95% CI = 1.14-1.19; glucose: RR = 1.24, 95% CI = 1.23-1.26; influenza vaccine: RR = 1.05, 95% CI = 1.03-1.07; pneumococcal vaccine: RR = 1.03, 95% CI = 0.97-1.09)., Conclusion: Delivery of preventive care improved after PCa diagnosis, with survivors receiving comparable preventive care to men without PCa during the five years following diagnosis.- Published
- 2017
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19. 5-Alpha Reductase Inhibitors and the Risk of Prostate Cancer Mortality in Men Treated for Benign Prostatic Hyperplasia.
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Wallner LP, DiBello JR, Li BH, Van Den Eeden SK, Weinmann S, Ritzwoller DP, Abell JE, D'Agostino R Jr, Loo RK, Aaronson DS, Richert-Boe K, Horwitz RI, and Jacobsen SJ
- Subjects
- Adrenergic alpha-Antagonists adverse effects, Aged, Cohort Studies, Humans, Male, Middle Aged, Odds Ratio, Retrospective Studies, Risk Assessment, Risk Factors, Treatment Outcome, 5-alpha Reductase Inhibitors adverse effects, Prostatic Hyperplasia drug therapy, Prostatic Neoplasms chemically induced, Prostatic Neoplasms mortality
- Abstract
Objective: To compare the risk of prostate cancer mortality among men treated with 5- alpha reductase inhibitors (5-ARIs) with those treated with alpha-adrenergic blockers (ABs) in community practice settings., Patients and Methods: A retrospective matched cohort (N=174,895) and nested case-control study (N=18,311) were conducted in 4 regions of an integrated health care system. Men 50 years and older who initiated pharmaceutical treatment for benign prostatic hyperplasia between January 1, 1992, and December 31, 2007, and had at least 3 consecutive prescriptions were followed through December 31, 2010. Adjusted subdistribution hazard ratios, accounting for competing risks of death, and matched odds ratios were used to estimate prostate cancer mortality associated with 5-ARI use (with or without concomitant ABs) as compared with AB use., Results: In the cohort study, 1,053 men died of prostate cancer (mean follow-up, 3 years), 15% among 5-ARI users (N= 25,388) and 85% among AB users (N=149,507) (unadjusted mortality rate ratio, 0.80). After accounting for competing risks, it was found that 5-ARI use was not associated with prostate cancer mortality when compared with AB use (adjusted subdistribution hazard ratio, 0.85; 95% CI, 0.72-1.01). Similar results were observed in the case-control study (adjusted matched odds ratio, 0.95; 95% CI, 0.78-1.17)., Conclusion: Among men being pharmaceutically treated for benign prostatic hyperplasia, 5-ARI use was not associated with an increased risk of prostate cancer-specific mortality when compared with AB use. The increased prevalence of high-grade lesions at the time of diagnosis noted in our study and the chemoprevention trials may not result in increased prostate cancer mortality., (Copyright © 2016 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
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20. Racial and Ethnic Variation in Time to Prostate Biopsy After an Elevated Screening Level of Serum Prostate-specific Antigen.
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Reading SR, Porter KR, Hsu JY, Wallner LP, Loo RK, and Jacobsen SJ
- Subjects
- Aged, Biopsy statistics & numerical data, Humans, Male, Middle Aged, Retrospective Studies, Time Factors, Ethnicity, Patient Acceptance of Health Care statistics & numerical data, Prostate pathology, Prostate-Specific Antigen blood, Prostatic Neoplasms blood, Prostatic Neoplasms pathology, Racial Groups
- Abstract
Objective: To examine the racial and ethnic variation in time to prostate biopsy after an elevated screening level of serum prostate-specific antigen (PSA)., Methods: Male members of the Kaiser Permanente of Southern California health plan, 45 years of age or older, with no history of prostate cancer or a prostate biopsy, and at least 1 elevated screening level of serum PSA between January 1, 1998 and December 31, 2007 were retrospectively identified (n = 59,506). All participants were passively followed via electronic health records until their time of prostate biopsy, death, membership disenrollment, or study conclusion (December 31, 2014), whichever was the initial event. Proportional hazard regression analyses were used to estimate the association between time from an elevated screening level of serum PSA to prostate biopsy, adjusting for age, benign prostatic hyperplasia, prostatitis, type 2 diabetes mellitus, hypertension, and Charlson Comorbidity Index score., Results: Median time until biopsy was 0.6 years (214 days), with approximately 41% of participants receiving a prostate biopsy within the study period. Results from the fully adjusted analysis indicated that the non-Hispanic Asian or Pacific Islanders (hazard ratio: 1.10, 95% confidence interval: [1.04, 1.15]) and the non-Hispanic blacks (hazard ratio: 1.04, 95% confidence interval: [1.00, 1.08]) had a slightly shorter time to prostate biopsy after an elevated screening level of serum PSA compared to the non-Hispanic whites., Conclusion: These data suggest that, within an integrated healthcare organization, minimal differences exist between racial and ethnic subgroups in their time to prostate biopsy after an elevated screening level of serum PSA., (Copyright © 2016. Published by Elsevier Inc.)
- Published
- 2016
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21. Trends in Prostate-specific Antigen Screening, Prostate Biopsies, Urology Visits, and Prostate Cancer Treatments From 2000 to 2012.
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Wallner LP, Hsu JW, Loo RK, Palmer-Toy DE, Schottinger JE, and Jacobsen SJ
- Subjects
- Adult, Age Factors, Aged, California, Humans, Male, Middle Aged, Prostate-Specific Antigen blood, Biopsy statistics & numerical data, Managed Care Programs statistics & numerical data, Mass Screening statistics & numerical data, Prostatic Neoplasms diagnosis, Prostatic Neoplasms therapy, Urologic Surgical Procedures statistics & numerical data
- Abstract
Objective: To determine whether the rates of prostate-specific antigen (PSA) screening, related biopsies and subsequent prostate cancer utilization decreased between 2000 and 2012 in a large, managed care organization., Methods: Male members of Kaiser Permanente Southern California who were aged ≥40 years and had no history of prostate cancer (N = 15,326) were passively followed through electronic health plan files from January 1, 2000, through December 31, 2012 (N = 1,539,469). The rates of PSA testing, elevated PSA tests, prostate biopsies, prostate cancer treatment (surgery and radiation), and urology visits were calculated per year among eligible men and stratified by age group., Results: A 59% decrease in PSA screening occurred among men aged ≥75 years beginning in 2008, followed by 49% in ages 65-74, 20% in ages 50-64, and 33% in ages 40-49 years in 2009. However, the number of elevated PSA tests remained largely unchanged in all groups except in men aged ≥75 years (45% decrease). Prostate biopsy rates and urology visits remained consistent among elderly men., Conclusion: Among men in this managed care setting, although there was a sharp decline in PSA testing among men aged ≥75 years after 2008, prostate biopsy rates remained constant, and subsequent prostate cancer treatment remained highest among men in this age group. These results suggest that the guidelines recommending against PSA and the subsequent provider-targeted interventions implemented in this system resulted in decreased screening across age groups and potentially led to more discriminant screening among those aged ≥75 years., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2015
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22. Reply: To PMID 26123517.
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Wallner LP, Loo RK, and Jacobsen SJ
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- Humans, Male, Biopsy statistics & numerical data, Managed Care Programs statistics & numerical data, Mass Screening statistics & numerical data, Prostatic Neoplasms diagnosis, Prostatic Neoplasms therapy, Urologic Surgical Procedures statistics & numerical data
- Published
- 2015
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23. Quality of preventive care before and after prostate cancer diagnosis.
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Wallner LP, Slezak JM, Quinn VP, Loo RK, Schottinger JE, Bastani R, and Jacobsen SJ
- Abstract
Objective: To examine if the use of general preventive services were diminished in a cohort of men following their diagnosis of prostate cancer., Patients and Methods: 16,604 men enrolled in Kaiser Permanente Southern California who were newly diagnosed with prostate cancer from January 1, 2002 through December 31, 2009 were passively followed through electronic medical records to determine the use of preventive services, including screening for colorectal cancer (colonoscopy and/or fecal occult blood tests (FOBT)), tests for diabetes (glucose and hemoglobin A1c) and heart disease (serum cholesterol, high density lipoprotein (HDL) and triglycerides) and vaccinations (influenza and pneumococcal). Preventive service use was compared in the two years prior to and following prostate cancer diagnosis using matched odds ratios (MOR) and 95% confidence intervals (CI) in 2013., Results: Men were more likely to receive a flu vaccine (MOR: 2.70, 95% CI: 2.52-2.90), lipid tests (MOR: 1.51, 95% CI: 1.42-1.61), diabetes tests (MOR: 2.13, 95% CI: 2.00-2.26) and screening for colorectal cancer (MOR: 1.80, 95% CI: 1.71-1.89) in the two years after prostate cancer diagnosis compared to before. Men with advanced disease at diagnosis were more likely to receive all types of preventive services after diagnosis when compared to men with localized disease., Conclusions: Once diagnosed with prostate cancer in this setting, no less attention was paid to general preventive care, although there remains room for improvement in pneumococcal vaccination and colon cancer screening rates. The delivery of high-quality continuing care after diagnosis is critical for aging cancer patients.
- Published
- 2015
24. The Continuum of Prostate Cancer Care: An Integrated Population Based Model of Health Care Delivery.
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Loo RK, Shapiro C, Tamaddon K, Chien G, Rhee E, and Jacobsen SJ
- Abstract
Introduction: We present a comprehensive model for population based prostate cancer management that is scalable, and has improved quality and outcomes., Methods: Kaiser Permanente Southern California is an integrated health care system that provides comprehensive care for 3.7 million members. Beginning in 2003 we put programs into place to improve the spectrum of care related to prostate cancer. These programs addressed screening, shared decision making for treatment after diagnosis, and care improvement for men with localized and advanced disease. These were implemented with traditional quality improvement techniques and outcomes were evaluated in collaboration with research groups embedded in the organization., Results: Prostate cancer screening in men 75 years old or older decreased 50% from 30% to 15%. The Safety Net program identified nearly 1,200 men with prostate cancer who had not been seen for followup from 2006 to 2010. There was a reduction in blood loss in surgical procedures that obviated the need for transfusion while maintaining a low positive margin rate. Hormonal therapy was changed to a dosing approach that was based on circulating testosterone levels, preventing some of the side effects of this therapy. Coupled with a systems approach to osteoporosis prevention, this approach resulted in a dramatic reduction in fracture rates in this high risk population., Conclusions: These data demonstrate that a systems approach to a population based prostate cancer program can lead to efficient and reliable care that can be successfully disseminated through an integrated health plan.
- Published
- 2015
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25. Progression and treatment of incident lower urinary tract symptoms (LUTS) among men in the California Men's Health Study.
- Author
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Wallner LP, Slezak JM, Loo RK, Quinn VP, Van Den Eeden SK, and Jacobsen SJ
- Subjects
- Adult, Aged, California epidemiology, Disease Progression, Health Surveys, Humans, Incidence, Lower Urinary Tract Symptoms epidemiology, Male, Middle Aged, Prospective Studies, Prostatic Hyperplasia, Lower Urinary Tract Symptoms therapy
- Abstract
Objectives: To characterise the progression and treatment of lower urinary tract symptoms (LUTS) among men aged 45-69 years in the California Men's Health Study., Patients and Methods: A total of 39,222 men, aged 45-69 years, enrolled in the Southern California Kaiser Permanente Health Plan were surveyed in 2002-2003 and again in 2006-2007. Those men who completed both surveys who did not have a diagnosis of benign prostatic hyperplasia (BPH) and were not on medication for LUTS at baseline were included in the study (N = 19,505). Among the men with no or mild symptoms at baseline, the incidence of moderate/severe LUTS (American Urological Association Symptom Index [AUASI] score ≥8) and odds of progression to severe LUTS (AUASI score ≥20) was estimated during 4 years of follow-up., Results: Of the 9640 men who reported no/mild LUTS at baseline, 3993 (41%) reported moderate/severe symptoms at follow-up and experienced a 4-point change in AUASI score on average. Of these men, 351 (8.8%) had received a pharmacological treatment, eight (0.2%) had undergone a minimally invasive or surgical procedure and 3634 (91.0%) had no treatment recorded. Men who progressed to severe symptoms (AUASI score ≥20; n = 165) were more likely to be on medication for BPH (odds ratio [OR] 8.09, 95% confidence interval [CI] 5.77-11.35), have a BPH diagnosis (OR 4.74, 95% CI 3.40-6.61) or have seen a urologist (OR 2.49, 95% CI 1.81-3.43) when compared with men who did not progress to severe symptoms (AUASI score <20)., Conclusion: These data show that the majority of men who experienced progression did not have pharmacological or surgical therapy for their symptoms and, therefore, may prove to be good candidates for a self-management plan., (© 2014 The Authors. BJU International © 2014 BJU International.)
- Published
- 2015
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26. Evaluation of the South Dakota fitCare child care provider training program targeting nutrition and physical activity.
- Author
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Bohn CM, Haskins DD, Loo RK, and Ahrendt LJ
- Subjects
- Child, Preschool, Diet, Exercise, Health Policy, Humans, Infant, Residence Characteristics, South Dakota, Staff Development organization & administration, Child Day Care Centers organization & administration, Health Behavior, Health Education organization & administration, Pediatric Obesity prevention & control
- Abstract
Introduction: Early childhood obesity is a significant health problem that has serious short- and long-term consequences. Recognizing the influence child care providers have on children, state programs have been created through federal funding initiatives to improve childhood health and reduce obesity rates. In 2011, South Dakota Department of Health received a five-year Centers for Disease Control and Prevention Community Transformation grant to improve healthy eating and active living. Grant funds were used to implement the fitCare Child Care Provider Training Program., Methods: Child care providers in South Dakota volunteered to participate in fitCare training. Surveys were conducted among fitCare and non-fitCare participants to assess South Dakota child care provider implementation of proper nutrition and physical activities in child care settings., Results: Survey findings showed that 52 percent of all providers surveyed have children, newborn to 2 years old, at their day care for more than 40 hours per week. Non-fitCare providers were more likely to provide additional servings of fruit than fitCare providers. Statistically significant findings showed that fitCare providers were more likely than non-fitCare providers to offer structured physical activity (p = < 0.001). Rural Urban Commuting Area analysis was also performed showing differences between rural and urban areas., Conclusions: Conclusions suggest that the physical activity components of fitCare training have a stronger impact on providers than the nutrition components. Future research should focus on strengthening the nutrition component of fitCare as well as increasing access to healthy foods. Suggestions are offered for improving the fitCare curriculum and training.
- Published
- 2014
27. Lifestyle intervention and cardiovascular disease risk reduction in low-income Hispanic immigrant women participating in the Illinois WISEWOMAN program.
- Author
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Khare MM, Cursio JF, Locklin CA, Bates NJ, and Loo RK
- Subjects
- Adult, Analysis of Variance, Cardiovascular Diseases economics, Cardiovascular Diseases ethnology, Diet standards, Educational Status, Emigrants and Immigrants, Female, Health Promotion organization & administration, Humans, Illinois, Medically Uninsured, Middle Aged, Motor Activity, Social Class, Women's Health economics, Cardiovascular Diseases prevention & control, Health Behavior ethnology, Health Promotion methods, Hispanic or Latino statistics & numerical data, Risk Reduction Behavior, Women's Health ethnology
- Abstract
Cardiovascular disease (CVD) is the leading cause of death for Hispanic women in the United States. In 2001, the Illinois Department of Public Health received funding from the Centers for Disease Control and Prevention to implement the enhanced WISEWOMAN program (IWP) to address the disproportionate CVD risk among uninsured and underinsured women enrolled in the Illinois Breast and Cervical Cancer Early Detection Program. This paper presents the results of the Spanish-language arm of the IWP. Spanish speaking IWP participants were recruited from two sites, and randomized into either the minimum intervention (MI) or the enhanced intervention (EI) group. Both groups received CVD risk factor screening and educational handouts. The EI group also received an integrated 12-week nutrition and physical activity lifestyle change intervention. Of the 180 Spanish-speaking immigrants in this sample, 90 (50%) received the EI and 90 (50%) received the MI. At baseline there were no significant differences between group demographics or clinical values. At post-intervention, the EI group showed improvements in fat intake, fiber intake, moderate intensity physical activity, and total physical activity. At 1 year only the change in fiber intake remained. A significant improvement was also seen in body mass index (BMI) at the 1-year follow-up. The IWP Spanish-language arm was moderately successful in addressing risk factors for CVD in this population. The behavior changes that sustained up to a year were an increase in fiber intake and a decrease in BMI.
- Published
- 2014
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28. Electronic Clinical Surveillance to Improve Outpatient Care: Diverse Applications within an Integrated Delivery System.
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Danforth KN, Smith AE, Loo RK, Jacobsen SJ, Mittman BS, and Kanter MH
- Abstract
Efforts to improve patient safety have largely focused on inpatient or emergency settings, but the importance of patient safety in ambulatory care is increasingly being recognized as a key component of overall health care quality. Care gaps in outpatient settings may include missed diagnoses, medication errors, or insufficient monitoring of patients with chronic conditions or on certain medications. Further, care gaps may occur across a wide range of clinical conditions. We report here an innovative approach to improve patient safety in ambulatory settings - the Kaiser Permanente Southern California (KPSC) Outpatient Safety Net Program - which leverages electronic health information to efficiently identify and address a variety of potential care gaps across different clinical conditions. Between 2006 and 2012, the KPSC Outpatient Safety Net Program implemented 24 distinct electronic clinical surveillance programs, which routinely scan the electronic health record to identify patients with a particular condition or event. For example, electronic clinical surveillance may be used to scan for harmful medication interactions or potentially missed diagnoses (e.g., abnormal test results without evidence of subsequent care). Keys to the success of the program include strong leadership support, a proactive clinical culture, the blame-free nature of the program, and the availability of electronic health information. The Outpatient Safety Net Program framework may be adopted by other organizations, including those who have electronic health information but not an electronic health record. In the future, the creation of a forum to share electronic clinical surveillance programs across organizations may facilitate more rapid improvements in outpatient safety.
- Published
- 2014
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29. Changes in serum prostate-specific antigen levels and the identification of prostate cancer in a large managed care population.
- Author
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Wallner LP, Frencher SK, Hsu JW, Chao CR, Nichol MB, Loo RK, and Jacobsen SJ
- Subjects
- Aged, Aged, 80 and over, Area Under Curve, Biomarkers, Tumor blood, Biopsy, California epidemiology, Follow-Up Studies, Humans, Incidence, Male, Middle Aged, Neoplasm Grading, Prognosis, Prostatic Neoplasms diagnosis, Prostatic Neoplasms epidemiology, ROC Curve, Retrospective Studies, Managed Care Programs statistics & numerical data, Prostate pathology, Prostate-Specific Antigen blood, Prostatic Neoplasms blood
- Abstract
Objective: To determine whether the rate of change in total serum prostate-specific antigen (PSA) levels accurately detects prostate cancer and to evaluate whether it adds any predictive value to a single measurement of serum PSA alone, in general practice settings., Materials and Methods: A retrospective cohort of 219,388 community-dwelling men, aged ≥45 years, enrolled in the Kaiser Permanente Southern California health plan, with no history of prostate cancer and at least three PSA measurements, were followed from 1 January 1998 to 31 December 2007, for the development of biopsy-confirmed prostate cancer. Annual percent changes in total serum PSA levels were estimated using linear mixed models. The accuracy of prostate cancer prediction was assessed for prostate cancer overall and for aggressive disease (Gleason score ≥7) and compared with that of a single measure of PSA level using area under the receiver-operating characteristic curves (AUCs)., Results: The men in this cohort experienced a mean change of 2.9% in PSA levels per year and the rate of change in PSA increased modestly with age (P ≤ 0.001). Annual percent changes in PSA accurately predicted the presence of prostate cancer (AUC = 0.963) and aggressive disease (AUC = 0.955) and had more predictive accuracy for aggressive disease than did a single measurement of PSA alone (AUC = 0.727)., Conclusions: Longitudinal measures of PSA improve the accuracy of aggressive prostate cancer detection when compared with a single measurement of PSA alone. Findings from this study provide insight into the usefulness of PSA velocity as a detection marker for aggressive prostate cancer., (© 2013 BJU International.)
- Published
- 2013
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30. Osteoporosis management program decreases incidence of hip fracture in patients with prostate cancer receiving androgen deprivation therapy.
- Author
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Zhumkhawala AA, Gleason JM, Cheetham TC, Niu F, Loo RK, Dell RM, Jacobsen SJ, and Chien GW
- Subjects
- Aged, Bone Density, California epidemiology, Follow-Up Studies, Hip Fractures epidemiology, Hip Fractures etiology, Humans, Incidence, Male, Osteoporosis complications, Osteoporosis epidemiology, Prostatic Neoplasms complications, Retrospective Studies, Androgen Antagonists therapeutic use, Antineoplastic Agents, Hormonal therapeutic use, Hip Fractures prevention & control, Osteoporosis prevention & control, Prostatic Neoplasms drug therapy
- Abstract
Objective: To evaluate the incidence of hip fracture in men with prostate cancer receiving androgen deprivation therapy (ADT)., Materials and Methods: One of the detrimental side effects of ADT for prostate cancer is osteoporosis. Through an osteoporosis prevention program implemented in our healthcare system, the patients at risk undergo dual x-ray absorptiometry scans and receive treatment if the T-score indicates bone loss. We evaluated the incidence of hip fracture in men with prostate cancer who were receiving ADT through a retrospective, cohort study conducted within a managed care organization. The participants were all men newly diagnosed with prostate cancer from January 2003 to December 2007 receiving leuprolide injections. Patients who had had a dual x-ray absorptiometry scan beginning 3 months before the index date through the end of study were included in the intervention group; all others were included in the comparison group. The main outcome of interest was a hip fracture occurring after the index date, excluding cancer pathologic fractures, traumatic fractures, and fractures associated with epilepsy., Results: A total of 1071 patients were in the intervention group, and 411 were in the comparison group. In the intervention group, 18 hip fractures occurred compared with 17 in the comparison group. The incidence rate of hip fractures per 1000 person-years was 5.1 (95% confidence interval 3.0-8.0) in the intervention group and 18.1 (95% confidence interval 10.5-29.0) in the comparison group., Conclusion: The incidence rate of hip fracture in this population was reduced >70% with enrollment in an osteoporosis management system, avoiding this morbid complication of ADT., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
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31. Stratifying risk of urinary tract malignant tumors in patients with asymptomatic microscopic hematuria.
- Author
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Loo RK, Lieberman SF, Slezak JM, Landa HM, Mariani AJ, Nicolaisen G, Aspera AM, and Jacobsen SJ
- Subjects
- Age Distribution, Aged, Aged, 80 and over, Asymptomatic Diseases epidemiology, California epidemiology, Causality, Cohort Studies, Comorbidity, Early Diagnosis, Female, Humans, Male, Middle Aged, Northwestern United States epidemiology, Predictive Value of Tests, Prospective Studies, ROC Curve, Risk Factors, Sex Distribution, Sex Factors, United States, Unnecessary Procedures, Validation Studies as Topic, Hematuria diagnosis, Hematuria epidemiology, Urologic Neoplasms diagnosis, Urologic Neoplasms epidemiology
- Abstract
Objective: To identify patients who could safely avoid unnecessary radiation and instrumentation after the detection of microscopic hematuria., Patients and Methods: We conducted a prospective cohort study of patients who were referred to urologists and underwent a full evaluation for asymptomatic microscopic hematuria during a 2-year period in an integrated care organization in 3 regions along the West Coast of the United States. A test cohort and validation cohort of patients with hematuria evaluations between January 9, 2009, and August 15, 2011, were identified. Patients were followed passively through their electronic health records for a diagnosis of urothelial or renal cancer. The degree of microscopic hematuria, history of gross hematuria, smoking history, age, race, imaging findings, and cystoscopy findings were evaluated as risk factors for malignant tumors., Results: The test cohort consisted of 2630 patients, of whom 55 (2.1%) had a neoplasm detected and 50 (1.9%) had a pathologically confirmed urinary tract cancer. Age of 50 years or older and a recent diagnosis of gross hematuria were the strongest predictors of cancer. Male sex was also predictive of cancer, whereas smoking history and 25 or more red blood cells per high-power field on a recent urinalysis were not statistically significant. A Hematuria Risk Index developed from these factors had an area under the receiver operating characteristic curve of 0.809. In the validation cohort of 1784 patients, the Hematuria Risk Index performed comparably (area under the curve = 0.829). Overall, 32% of the population was identified as low risk and 0.2% had a cancer detected; 14% of the population was identified as high risk, of whom 11.1% had a cancer found., Conclusion: These results suggest that a considerable proportion of patients could avoid extensive evaluations with the use of the Hematuria Risk Index., (Copyright © 2013 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.)
- Published
- 2013
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32. Population-based study of erectile dysfunction and polypharmacy.
- Author
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Londoño DC, Slezak JM, Quinn VP, Van Den Eeden SK, Loo RK, and Jacobsen SJ
- Subjects
- Aged, Body Mass Index, California epidemiology, Depressive Disorder epidemiology, Diabetes Complications epidemiology, Erectile Dysfunction epidemiology, Humans, Hyperlipidemias epidemiology, Hypertension epidemiology, Male, Middle Aged, Prevalence, Smoking epidemiology, Erectile Dysfunction chemically induced, Polypharmacy
- Abstract
Unlabelled: Study Type - Symptom prevalence (population cohort). Level of Evidence 1b. What's known on the subject? and What does the study add? It is known that medical conditions such as diabetes, high blood pressure, high cholesterol, smoking and prescribed medications cause erectile dysfunction (ED). This has been studied at the molecular level and reported in population studies. The present study shows that, after accounting for known medical problems, there is a dose-response relationship, in which worsening degrees of ED are seen when a greater number of medications are taken, regardless if they are prescribed or over the counter. The study can help primary care doctors and urologists to make a differential diagnosis of ED and it can also help improve patient's erectile function by tailoring and curtailing current medication use to maximize therapeutic benefit but minimize ED side effects in men, thus improving health-related quality of life., Objective: • To study the association between erectile dysfunction (ED) and polypharmacy use in a large, ethnically and racially diverse cohort of men enrolled in the California Men's Health Study (CMHS)., Patients and Methods: • Men from the Kaiser Permanente Southern California (KPSC) health plan, enrolled in the CMHS in 2002, had an age range of 45-69 years. ED and comorbidities of these subjects were identified by questionnaire responses. • The number of drugs taken was determined from the year before enrollment through electronic pharmacy records and questionnaire responses., Results: • Among the 37 712 (KPSC) subjects, 10 717 (29%) reported moderate or severe ED. • Across all age groups, ED was more prevalent as the number of medications increased. • In men taking 0-2, 3-5,6-9 and ≥ 10 medications, the percentage of men reporting moderate ED was 15.9, 19.7, 25.5 and 30.9%, respectively (P < 0.001). • With adjustment for age, race, smoking, diabetes, hypertension, hyperlipidaemia, peripheral vascular disease, coronary artery disease and body mass index, men taking >10 drugs were more likely to have ED (odds ratio = 2.32, 95% confidence interval 2.14-2.52) with evidence of a dose-response relationship., Conclusion: • These data suggest that the number of medications a man takes is associated with worse ED, even after comorbidities have been taken into account., (© 2011 BJU INTERNATIONAL.)
- Published
- 2012
- Full Text
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33. Lifestyle intervention and cardiovascular risk reduction in the Illinois WISEWOMAN Program.
- Author
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Khare MM, Carpenter RA, Huber R, Bates NJ, Cursio JF, Balmer PW, Nolen KN, Hudson H, Shippee SJ, and Loo RK
- Subjects
- Adult, Analysis of Variance, Female, Humans, Illinois, Program Evaluation, Women's Health, Cardiovascular Diseases prevention & control, Counseling methods, Health Knowledge, Attitudes, Practice, Life Style
- Abstract
Background: The Illinois WISEWOMAN Program (IWP) was designed to address the disproportionate risk of cardiovascular disease (CVD) among disadvantaged, low-income women. In total, 1021 women aged 40 to 64 years were recruited from the Illinois Breast and Cervical Cancer Program. The women were randomized to either a minimum intervention (MI) or an enhanced intervention (EI) group. Both groups received CVD risk factor screening and educational materials, and the EI group received a 12-week lifestyle change intervention., Methods: Demographic and clinical data were collected in addition to data on CVD risk, which was measured in terms of nutritional and physical activity behavior, using culturally adapted versions of three valid and reliable questionnaires. IWP data were analyzed for demographic characteristics and clinical and behavioral outcomes at baseline, post-intervention, and follow-up at 1 and 2 years from baseline. This article reports the change in these outcomes up to the 1-year follow-up., Results: Participants in the EI group showed significant improvement on some of the dietary and physical activity outcomes both at post-intervention and 1-year follow-up. Compared with the MI group, the EI group showed more improvement in dietary fat- and fiber-related behaviors and increased physical activity levels. There were improvements in all of the cardiovascular outcomes at post-intervention in both the EI and MI groups; however, these changes were not statistically significant., Conclusion: As an integrated physical activity and nutrition intervention, the IWP has shown its strength in addressing some of the lifestyle behaviors for CVD prevention in this at-risk target population.
- Published
- 2012
- Full Text
- View/download PDF
34. Contribution of common medications to lower urinary tract symptoms in men.
- Author
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Wuerstle MC, Van Den Eeden SK, Poon KT, Quinn VP, Hollingsworth JM, Loo RK, and Jacobsen SJ
- Subjects
- Aged, Asthma complications, Depression complications, Humans, Incidence, Male, Middle Aged, United States epidemiology, Urination Disorders epidemiology, Antidepressive Agents pharmacology, Asthma drug therapy, Bronchodilator Agents pharmacology, Depression drug therapy, Prostatic Hyperplasia complications, Urination Disorders etiology
- Published
- 2011
- Full Text
- View/download PDF
35. Association of hematuria on microscopic urinalysis and risk of urinary tract cancer.
- Author
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Jung H, Gleason JM, Loo RK, Patel HS, Slezak JM, and Jacobsen SJ
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, California epidemiology, Female, Humans, Incidence, Logistic Models, Male, Middle Aged, Poisson Distribution, Registries, Retrospective Studies, Risk, SEER Program, Sensitivity and Specificity, Sex Factors, Urinalysis, Urologic Neoplasms epidemiology, Hematuria diagnosis, Urologic Neoplasms diagnosis
- Abstract
Purpose: We determined the incidence of urinary tract cancer in patients with hematuria, stratified risk by age, gender and hematuria degree, and examined current best policy recommendations., Materials and Methods: We performed a large, retrospective population based cohort study of patients who underwent microscopic urinalysis during 2004 and 2005 in a large managed care organization. Patients were followed for 3 years for urinary tract cancer., Results: We identified 772,002 patients who underwent urinalysis during the study period. After exclusions due to previous hematuria, age less than 18 years, pregnancy, urinary tract infection, inpatient status and prior urinary tract cancer 309,402 patients were available for analysis, of whom 156,691 had hematuria. The overall 3-year incidence of urinary tract cancer in those with hematuria was 0.68%. Older age (greater than 40 years OR 17.0, 95% CI 11.2-25.7), greater hematuria (greater than 25 red blood cells per high power field OR 4.0, 95% CI 3.5-4.5) and male gender (OR 4.8, 95% CI 4.2-5.6) were associated with a higher risk of cancer. The American Urological Association definition of microhematuria had 50% sensitivity, 84% specificity and 1.3% positive predictive value., Conclusions: The incidence of urinary tract cancer is low even in individuals with microhematuria. Thus, current best policy recommendations do not perform well. Since older age, male gender and greater hematuria are associated with a higher risk of cancer, future studies should evaluate strategies that target these populations., (Copyright © 2011 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.)
- Published
- 2011
- Full Text
- View/download PDF
36. Regular nonsteroidal anti-inflammatory drug use and erectile dysfunction.
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Gleason JM, Slezak JM, Jung H, Reynolds K, Van den Eeden SK, Haque R, Quinn VP, Loo RK, and Jacobsen SJ
- Subjects
- Aged, Anti-Inflammatory Agents, Non-Steroidal administration & dosage, Humans, Male, Middle Aged, Prospective Studies, Surveys and Questionnaires, Anti-Inflammatory Agents, Non-Steroidal adverse effects, Erectile Dysfunction chemically induced
- Abstract
Purpose: Previous data suggest a potential relationship between inflammation and erectile dysfunction. If it is causal, nonsteroidal anti-inflammatory drug use should be inversely associated with erectile dysfunction. To this end we examined the association between nonsteroidal anti-inflammatory drug use and erectile dysfunction in a large, ethnically diverse cohort of men enrolled in the California Men's Health Study., Materials and Methods: This prospective cohort study enrolled male members of the Kaiser Permanente managed care plans who were 45 to 69 years old beginning in 2002. Erectile dysfunction was assessed by questionnaire. Nonsteroidal anti-inflammatory drug exposure was determined by automated pharmacy data and self-reported use., Results: Of the 80,966 men in this study 47.4% were considered nonsteroidal anti-inflammatory drug users based on the definitions used and 29.3% reported moderate or severe erectile dysfunction. Nonsteroidal anti-inflammatory drug use and erectile dysfunction strongly correlated with age with regular drug use increasing from 34.5% in men at ages 45 to 49 years to 54.7% in men 60 to 69 years old with erectile dysfunction increasing from 13% to 42%. The unadjusted OR for the association of nonsteroidal anti-inflammatory drugs and erectile dysfunction was 2.40 (95% CI 2.27, 2.53). With adjustment for age, race/ethnicity, smoking status, diabetes mellitus, hypertension, hyperlipidemia, peripheral vascular disease, coronary artery disease and body mass index, a positive association persisted (adjusted OR 1.38). The association persisted when using a stricter definition of nonsteroidal anti-inflammatory drug exposure., Conclusions: These data suggest that regular nonsteroidal anti-inflammatory drug use is associated with erectile dysfunction beyond what would be expected due to age and comorbidity., (Copyright © 2011 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.)
- Published
- 2011
- Full Text
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37. Early development of castrate resistance varies with different dosing regimens of luteinizing hormone releasing hormone agonist in primary hormonal therapy for prostate cancer.
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Blumberg JM, Kwon EO, Cheetham TC, Niu F, Shapiro CE, Pacificar J, Loo RK, Williams SG, and Chien GW
- Subjects
- Aged, Humans, Male, Retrospective Studies, Time Factors, Antineoplastic Agents, Hormonal administration & dosage, Drug Resistance, Neoplasm, Gonadotropin-Releasing Hormone agonists, Leuprolide administration & dosage, Prostatic Neoplasms drug therapy
- Abstract
Objectives: Luteinizing hormone releasing hormone (LHRH) agonist therapy is one of the mainstays of prostate cancer treatment. Three dosing regimens currently exist: calendar-based, intermittent, and a testosterone (T)-based (T-based) regimen. We investigated the differences in development of early castrate resistance rates between these different regimens., Methods: We evaluated 1617 patients with prostate cancer who received LHRH-agonist monotherapy in the Kaiser Permanente Southern California Cancer Registry between January 2003 and December 2006. Patients who had undergone surgery and/or radiation were excluded. Patients were grouped according to their dosing regimen: calendar-based, intermittent dosing, and T-based. Cox proportional hazard-regression analysis was used to estimate the hazards ratio (HR) for treatment failure., Results: A total of 692 patients who received an LHRH agonist as primary monotherapy for prostate cancer fit our criteria. Calendar-based dosing was used in 325 patients; 252 received T-based dosing and 115 received intermittent dosing. On multivariate analysis controlling for demographic and prostate cancer-related variables, the T-based dosing group showed a significantly lower relative risk of treatment failure (HR = 0.65, P = .02). The intermittent-dosing group trended toward a lower risk treatment failure (HR = 0.80, P = .3). Among the variables analyzed, only a Gleason score >8 (HR = 2.05, P = .01) and a pretreatment prostate-specific antigen >20 (HR = 2.00, P <.01) were associated with a higher risk of treatment failure., Conclusions: During the time period studied, T-based and intermittent dosing regimen of LHRH agonist had lower rates of early castrate resistance compared with standard calendar dosing, based on measurements for early androgen resistance., (Copyright © 2011 Elsevier Inc. All rights reserved.)
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- 2011
- Full Text
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38. Correlates of prostate-specific antigen testing in a large multiethnic cohort.
- Author
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Haque R, Van Den Eeden SK, Jacobsen SJ, Caan B, Avila CC, Slezak J, Sternfeld B, Loo RK, and Quinn VP
- Subjects
- California epidemiology, Cohort Studies, Cross-Sectional Studies, Educational Status, Humans, Male, Middle Aged, Patient Education as Topic, Smoking epidemiology, Mass Screening statistics & numerical data, Prostate-Specific Antigen blood, Prostatic Neoplasms diagnosis, Racial Groups statistics & numerical data
- Abstract
Objective: To examine factors associated with prostate-specific antigen (PSA) testing in the multiethnic California Men's Health Study., Study Design: Cross-Sectional analysis nested within a cohort of male health plan members (n = 55,278)., Methods: We extracted laboratory serum PSA values during the study period from 1998 to 2002. Using selected demographic and healthcare factors, we estimated the proportion of men who underwent PSA testing at least once during the 5-year period. Odds ratios and corresponding 95% confidence intervals were estimated to assess the association between these factors and PSA screening use., Results: African American men had substantially higher PSA screening prevalence than white men (82.6% vs 73.7%). Low PSA screening use was associated with Latino race/ethnicity, lower level of education, residency in the United States for 25 years or less, current smoking, and lack of PSA test discussion with healthcare providers. The strongest positive predictors of PSA testing were African American race/ethnicity (odds ratio, 1.66; 95% confidence interval, 1.50-1.83) and high concern about prostate cancer (odds ratio, 1.53; 95% confidence interval, 1.38-1.69). In contrast, when men did not discuss PSA testing with their physicians, they were 80% less likely to undergo screening., Conclusions: In this insured population for whom financial barriers are minimized, PSA screening varied by race/ethnicity and by other patient and clinical factors, possibly reflecting inconsistencies in prostate cancer screening guidelines. Despite these differences, healthcare providers have a key role in patients' likelihood of undergoing PSA screening.
- Published
- 2009
39. Clinic-based nutrition and lifestyle counseling for Hispanic women delivered by community health workers: design of the California WISEWOMAN study.
- Author
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Farrell MA, Hayashi T, Loo RK, Rocha DA, Sanders C, Hernandez M, and Will JC
- Subjects
- Adult, California epidemiology, Cardiovascular Diseases epidemiology, Counseling methods, Female, Health Education organization & administration, Health Knowledge, Attitudes, Practice, Health Services Research, Hispanic or Latino psychology, Humans, Life Style, Middle Aged, Patient Education as Topic, Program Evaluation, Socioeconomic Factors, Women's Health, Women's Health Services organization & administration, Cardiovascular Diseases prevention & control, Community Health Centers organization & administration, Counseling statistics & numerical data, Hispanic or Latino statistics & numerical data, Nutrition Assessment, Primary Prevention organization & administration
- Abstract
Background: The Well-Integrated Screening and Evaluation for Women Across the Nation (WISEWOMAN) program in California, named Heart of the Family, implements and evaluates the effectiveness of lifestyle interventions to improve nutrition and physical activity while reducing cardiovascular disease (CVD) risk factors among low-income, uninsured or underinsured Hispanic women aged 40-64 who participate in the Cancer Detection Programs: Every Woman Counts (CDP:EWP). This paper reports the study design and baseline findings of the California WISEWOMAN program., Methods: Heart of the Family, a within-site randomized controlled study at four community health centers in Los Angeles and San Diego, featured a unique set of strategies meeting the state population in implementing a California WISEWOMAN program. The program exclusively targeted Hispanic women who are at risk of developing CVD, provided lifestyle intervention using a validated intervention material in Spanish and English to motivate behavioral changes, and used bilingual (English and Spanish) community health workers (CHWs) to provide individually based face-to-face counseling. Women meeting enrollment criteria were randomly assigned either to an enhanced intervention group (EIG), who received lifestyle intervention, or usual care group (UCG), who received the usual care for elevated blood pressure or cholesterol., Results: A total of 1093 women enrolled between January 2006 and August 2006. Demographic and baseline CVD risk profiles are similar in both groups. Some notable characteristics of the California participants are lower smoking rate (5%), higher average body mass index (BMI) (31.9), and a significantly higher percentage with less than high school education (70%)., Conclusions: With its unique study design and large number of enrolls, Heart of the Family will enable future public health efforts to better meet the health needs of Hispanic women by addressing education levels, economic considerations, and cultural and linguistic needs.
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- 2009
- Full Text
- View/download PDF
40. A lifestyle approach to reducing cardiovascular risk factors in underserved women: design and methods of the Illinois WISEWOMAN Program.
- Author
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Khare MM, Huber R, Carpenter RA, Balmer PW, Bates NJ, Nolen KN, Hudson HK, Lattyak RM, Cursio JF, Loo RK, Farris RP, and Will JC
- Subjects
- Adult, Breast Neoplasms epidemiology, Cardiovascular Diseases epidemiology, Female, Health Services Research, Humans, Illinois epidemiology, Mass Screening organization & administration, Middle Aged, Uterine Cervical Neoplasms epidemiology, Women's Health, Breast Neoplasms prevention & control, Cardiovascular Diseases prevention & control, Medically Uninsured, Primary Prevention organization & administration, Uterine Cervical Neoplasms prevention & control, Women's Health Services organization & administration
- Abstract
Background: Few lifestyle intervention programs address the needs of financially disadvantaged, low literacy populations. The overall goal of the Illinois WISEWOMAN Program (IWP) was to design such a program and test its effectiveness in reducing cardiovascular disease (CVD) risk, specifically physical activity and nutrition factors. The purpose of this paper is to describe the IWP study design and methods, development of the evidence-based curriculum appropriate for a low socioeconomic status (SES) population, and baseline characteristics of IWP participants., Methods: The Cooper Institute, in collaboration with the Illinois Department of Public Health and the University of Illinois at Chicago, adapted evidence-based interventions for financially disadvantaged, low literacy populations. The study used a randomized, two-group, experimental design. In total, 1021 women were recruited from the Illinois Breast and Cervical Cancer Program, which serves uninsured and underinsured women, aged 40-64, at or below 200% of poverty. The women were randomized to either a minimum intervention (MI) or an enhanced intervention (EI) group. Both groups received CVD risk factor screening and educational materials. Additionally, the EI group received a 12-week lifestyle intervention., Results: Baseline comparisons show equivalent groups. IWP participants had a higher prevalence of obesity and smoking than similar national samples., Conclusions: IWP addressed many of the cultural and implementation barriers in programs that seek to improve the health of financially disadvantaged, low literacy populations. Because of the high burden of disease, the unique study population, and the sound design, we anticipate that our future results will contribute to the translation literature, which has largely ignored significant health disparities.
- Published
- 2009
- Full Text
- View/download PDF
41. The WISEWOMAN program: reflection and forecast.
- Author
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Will JC and Loo RK
- Subjects
- Adult, Centers for Disease Control and Prevention, U.S., Female, Humans, Medically Uninsured, Middle Aged, Poverty, Program Evaluation, United States, Women's Health, Women's Health Services organization & administration, Cardiovascular Diseases prevention & control, Mass Screening, Women's Health Services trends
- Abstract
The WISEWOMAN program targets low-income under- and uninsured women aged 40-64 years for screening and interventions aimed at reducing the risk of heart disease, stroke, and other chronic diseases. The program enters its third phase on June 30, 2008. Design issues and results from Phase I and Phase II have been published in a series of papers. We summarize remaining challenges, which were identified through systematic research and evaluation. Phase III will address these challenges through a number of new initiatives such as allowing interventions of different intensities, taking advantage of resources for promoting community health, and providing evidence-based interventions through the program's Center of Excellence. Finally, we provide a framework and vision so that organizational, community, and other partners can make the case for the importance of the program to their communities and for what is needed to make it work.
- Published
- 2008
42. California Men's Health Study (CMHS): a multiethnic cohort in a managed care setting.
- Author
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Enger SM, Van den Eeden SK, Sternfeld B, Loo RK, Quesenberry CP Jr, Rowell S, Sadler MC, Schaffer DM, Habel LA, and Caan BJ
- Subjects
- Aged, California epidemiology, Cohort Studies, Health Surveys, Humans, Life Style, Male, Middle Aged, Prostate-Specific Antigen, Prostatic Neoplasms diagnosis, Risk-Taking, Surveys and Questionnaires, Health Behavior ethnology, Health Knowledge, Attitudes, Practice, Health Status, Prepaid Health Plans, Prostatic Neoplasms ethnology, Prostatic Neoplasms etiology
- Abstract
Background: We established a male, multiethnic cohort primarily to study prostate cancer etiology and secondarily to study the etiologies of other cancer and non-cancer conditions., Methods/design: Eligible participants were 45-to-69 year old males who were members of a large, prepaid health plan in California. Participants completed two surveys on-line or on paper in 2002-2003. Survey content included demographics; family, medical, and cancer screening history; sexuality and sexual development; lifestyle (diet, physical activity, and smoking); prescription and non-prescription drugs; and herbal supplements. We linked study data with clinical data, including laboratory, hospitalization, and cancer data, from electronic health plan files. We recruited 84,170 participants, approximately 40% from minority populations and over 5,000 who identified themselves as other than heterosexual. We observed a wide range of education (53% completed less than college) and income. PSA testing rates (75% overall) were highest among black participants. Body mass index (BMI) (median 27.2) was highest for blacks and Latinos and lowest for Asians, and showed 80.6% agreement with BMI from clinical data sources. The sensitivity and specificity can be assessed by comparing self-reported data, such as PSA testing, diabetes, and history of cancer, to health plan data. We anticipate that nearly 1,500 prostate cancer diagnoses will occur within five years of cohort inception., Discussion: A wide variety of epidemiologic, health services, and outcomes research utilizing a rich array of electronic, biological, and clinical resources is possible within this multiethnic cohort. The California Men's Health Study and other cohorts nested within comprehensive health delivery systems can make important contributions in the area of men's health.
- Published
- 2006
- Full Text
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43. Portal venous drainage for cadaveric renal transplantation.
- Author
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Rosenthal JT and Loo RK
- Subjects
- Adult, Anastomosis, Surgical methods, Cadaver, Humans, Male, Renal Artery surgery, Kidney Transplantation methods, Mesenteric Veins surgery, Renal Veins surgery
- Abstract
The iliac vessels are the standard site for vascular connections for kidney transplantation. Unusual circumstances may render the iliac vessels unusable. We report a case in which a cadaveric renal allograft was successfully transplanted despite an absence of normal venous anatomy, using the inferior mesenteric vein for revascularization.
- Published
- 1990
- Full Text
- View/download PDF
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