279 results on '"Malin, Jennifer"'
Search Results
252. Cherub versus brat .
- Author
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Malin JA and Desplan C
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- Animals, DNA-Binding Proteins genetics, Drosophila melanogaster genetics, Stem Cells, Transcription Factors genetics, Drosophila Proteins genetics, RNA, Long Noncoding
- Abstract
A long non-coding RNA molecule called cherub is a driver of tumor development., Competing Interests: JM, CD No competing interests declared, (© 2018, Malin et al.)
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- 2018
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253. Real-World Impact of a Decision Support Tool on Colony-Stimulating Factor Use and Chemotherapy-Induced Febrile Neutropenia Among Patients With Breast Cancer.
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Agiro A, DeVries A, Malin J, and Fisch MJ
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- Adolescent, Adult, Aged, Aged, 80 and over, Breast Neoplasms diagnosis, Breast Neoplasms drug therapy, Chemotherapy-Induced Febrile Neutropenia diagnosis, Chemotherapy-Induced Febrile Neutropenia drug therapy, Combined Modality Therapy, Evidence-Based Medicine, Female, Humans, Incidence, Middle Aged, Retrospective Studies, Risk Factors, Treatment Outcome, Young Adult, Breast Neoplasms complications, Breast Neoplasms epidemiology, Chemotherapy-Induced Febrile Neutropenia epidemiology, Chemotherapy-Induced Febrile Neutropenia etiology, Colony-Stimulating Factors administration & dosage, Colony-Stimulating Factors therapeutic use, Decision Support Techniques
- Abstract
Background: White blood cell colony-stimulating factors (CSFs) decrease the incidence of chemotherapy-induced febrile neutropenia (FN). Widespread use of CSFs that is not guideline-concordant has been reported. Among patients with breast cancer receiving chemotherapy, the ability of evidence-based decision support tools to promote risk-appropriate reductions in CSF use without increased incidence of FN has not been examined. Methods: A retrospective cohort design and US commercial claims data were used. The impact of CSF decision support was analyzed among women with breast cancer receiving first-cycle chemotherapy from April 1, 2013, to March 30, 2015. The tool was implemented as part of a prior authorization process in 9 states starting July 1, 2014. Patients were assigned to intervention (ie, states where the decision support tool had been implemented) or nonintervention states (ie, 39 states where the tool had not been implemented). CSF use and subsequent incidence of FN were compared using difference-in-difference (DID) regressions adjusting for baseline differences in FN risk factors such as comorbidities and various infections. Results: The study sample of 7,224 patients (intervention states: pre-implementation, 1,991 and post-implementation, 2,010; nonintervention states: pre-implementation, 1,569 and post-implementation, 1,654) showed no significant difference in risk factors. Before and after implementation, a significant decrease in the proportion of patients with CSF use was observed in the intervention states (75% to 69%) compared with no significant change in the nonintervention (72% to 71%) states (DID, -5.4%; 95% CI, -6.0% to -4.7%; P =.006). No significance increase in FN incidence occurred in intervention (5.0% to 5.5%) and nonintervention (5.4% to 4.8%) states (DID, 0.2%; 95% CI, -0.20 to 0.30; P =.78). Similar results were obtained in subgroups by comorbidities and in sensitivity analyses by claims-based FN definitions. Conclusions: CSF use decreased modestly after implementation of the decision support tool, with no observed changes in FN rates. Such tools can reduce practice variation to improve care standards., (Copyright © 2018 by the National Comprehensive Cancer Network.)
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- 2018
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254. Physician variation in lung cancer treatment at the end of life.
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Green JB, Shapiro MF, Ettner SL, Malin J, Ang A, and Wong MD
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- Antineoplastic Agents therapeutic use, Cohort Studies, Female, Humans, Male, Retrospective Studies, SEER Program, United States, Carcinoma, Non-Small-Cell Lung drug therapy, Drug Utilization statistics & numerical data, Lung Neoplasms drug therapy, Practice Patterns, Physicians' statistics & numerical data, Terminal Care
- Abstract
Objectives: To determine whether a treating oncologist's characteristics are associated with variation in use of chemotherapy for patients with advanced non-small cell lung cancer (aNSCLC) at the end of life., Study Design: Retrospective cohort., Methods: Using the 2009 Surveillance, Epidemiology, and End Results-Medicare database, we studied chemotherapy receipt within 30 days of death among Medicare enrollees who were diagnosed with aNSCLC between 1999 and 2006, received chemotherapy, and died within 3 years of diagnosis. A multilevel model was constructed to assess the contribution of patient and physician characteristics and geography to receiving chemotherapy within 30 days of death., Results: Among 21,894 patients meeting eligibility criteria, 43.1% received chemotherapy within 30 days of death. In unadjusted bivariate analyses, female sex, Asian or black race, older age, and a greater number of comorbid diagnoses predicted lower likelihood of receiving chemotherapy at the end of life (P ≤.038 for all comparisons). Adjusting for patient and physician characteristics, physicians in small independent practices were substantially more likely than those employed in other practice models, particularly academic practices or nongovernment hospitals, to order chemotherapy for a patient in the last 30 days of life (P <.001 for all comparisons); female physicians were less likely than males to prescribe such treatment (P = .04)., Conclusions: Patients receiving care for aNSCLC in small independent oncology practices are more likely to receive chemotherapy in the last 30 days of life.
- Published
- 2017
255. Putting Cancer Care on the Right Path.
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Malin J and Calandra R
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- Cost Control, Drug Costs, Humans, Critical Pathways, Neoplasms drug therapy
- Published
- 2015
256. Leveraging state cancer registries to measure and improve the quality of cancer care: a potential strategy for California and beyond.
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Hiatt RA, Tai CG, Blayney DW, Deapen D, Hogarth M, Kizer KW, Lipscomb J, Malin J, Phillips SK, Santa J, and Schrag D
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- California, Electronic Health Records, Humans, Insurance Claim Reporting, Medical Record Linkage, Neoplasms, Quality Assurance, Health Care, Quality Improvement, Registries standards
- Abstract
Despite recent increased attention to healthcare performance and the burden of disease from cancer, measures of quality of cancer care are not readily available. In 2013, the California HealthCare Foundation convened an expert workgroup to explore the potential for leveraging data in the California Cancer Registry (CCR), one of the world's largest population-based cancer registries, for measuring and improving the quality of cancer care. The workgroup assessed current registry operations, the value to be gained by linking CCR data with health insurance claims or encounter data and clinical data contained in health system electronic health records, and potential barriers to these linkages. The workgroup concluded that: 1) The CCR mandate should be expanded to include use of its data for quality of cancer care measurement and public reporting; and 2) a system should be developed to support linkage of registry data with both claims data and provider electronic health record data., (© The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.)
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- 2015
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257. Cell Death in C. elegans Development.
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Malin JZ and Shaham S
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- Animals, Caenorhabditis elegans Proteins genetics, Calcium-Binding Proteins metabolism, Caspases metabolism, Cell Death, Gene Expression Regulation, Proto-Oncogene Proteins c-bcl-2 metabolism, Repressor Proteins genetics, Repressor Proteins metabolism, Apoptosis physiology, Caenorhabditis elegans cytology, Caenorhabditis elegans growth & development, Caenorhabditis elegans Proteins metabolism
- Abstract
Cell death is a common and important feature of animal development, and cell death defects underlie many human disease states. The nematode Caenorhabditis elegans has proven fertile ground for uncovering molecular and cellular processes controlling programmed cell death. A core pathway consisting of the conserved proteins EGL-1/BH3-only, CED-9/BCL2, CED-4/APAF1, and CED-3/caspase promotes most cell death in the nematode, and a conserved set of proteins ensures the engulfment and degradation of dying cells. Multiple regulatory pathways control cell death onset in C. elegans, and many reveal similarities with tumor formation pathways in mammals, supporting the idea that cell death plays key roles in malignant progression. Nonetheless, a number of observations suggest that our understanding of developmental cell death in C. elegans is incomplete. The interaction between dying and engulfing cells seems to be more complex than originally appreciated, and it appears that key aspects of cell death initiation are not fully understood. It has also become apparent that the conserved apoptotic pathway is dispensable for the demise of the C. elegans linker cell, leading to the discovery of a previously unexplored gene program promoting cell death. Here, we review studies that formed the foundation of cell death research in C. elegans and describe new observations that expand, and in some cases remodel, this edifice. We raise the possibility that, in some cells, more than one death program may be needed to ensure cell death fidelity., (© 2015 Elsevier Inc. All rights reserved.)
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- 2015
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258. Facility characteristics and quality of lung cancer care in an integrated health care system.
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Ryoo JJ, Malin JL, Ordin DL, Oishi SM, Kim B, Asch SM, He R, and Gould MK
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- Aged, Aged, 80 and over, Delivery of Health Care, Female, Follow-Up Studies, Health Services Accessibility, Humans, Male, Middle Aged, Prognosis, United States, United States Department of Veterans Affairs, Veterans Health, Cancer Care Facilities standards, Cancer Care Facilities statistics & numerical data, Lung Neoplasms therapy, Outcome and Process Assessment, Health Care, Quality Indicators, Health Care, Quality of Health Care statistics & numerical data
- Abstract
Introduction: In a national, integrated health care system, we sought to identify facility-level attributes associated with better quality of lung cancer care., Methods: Adherence to 23 quality indicators across four domains (Diagnosis and Staging, Treatment, Supportive Care, End-of-Life Care) was assessed through abstraction of electronic records from 4804 lung cancer patients diagnosed in 2007 at 131 Veterans Health Administration facilities. Performance was reported as proportions of eligible patients fulfilling adherence criteria. With stratification of patients by stage, generalized estimating equations identified facility-level characteristics associated with performance by domain., Results: Overall performance was high for the older (mean age 67.7 years, SD 9.4 years), predominantly male (98%) veterans. However, no facility did well on every measure, and range of adherence across facilities was large; 9% of facilities were in the highest quartile for one or more domain of care, more than 30% for two, and 65% for three. No facility performed consistently well across all domains. Less than 1% performed in the lowest quartile for all. Few facility-level characteristics were associated with care quality. For End-of-Life Care, diagnosis and treatment within the same facility, availability of cancer psychiatry/psychology consultation services, and availability of both inpatient and outpatient palliative care consultation services were associated with better adherence., Conclusions: Quality of Veterans Health Administration lung cancer care is generally high, though substantial variation exists across facilities. With the exception of the salutary impact of palliative care consultation services on end-of-life quality of care, observed facility-level characteristics did not consistently predict adherence to indicators, suggesting quality may be determined by complex local factors that are difficult to measure.
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- 2014
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259. Validating electronic cancer quality measures at Veterans Health Administration.
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Shelton JB, Skolarus TA, Ordin D, Malin J, Antonio A, Ryoo J, and Saigal CS
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- Aged, Aged, 80 and over, Humans, Male, Middle Aged, Quality of Health Care standards, Quality of Health Care statistics & numerical data, Reproducibility of Results, Retrospective Studies, United States, Electronic Health Records standards, Electronic Health Records statistics & numerical data, Lung Neoplasms therapy, Prostatic Neoplasms therapy, Quality Indicators, Health Care standards, Quality Indicators, Health Care statistics & numerical data, United States Department of Veterans Affairs standards
- Abstract
Objectives: To assess the feasibility and validity of developing electronic clinical quality measures (eCQMs) of cancer care quality from existing metrics, using electronic health records, administrative, and cancer registry data., Study Design: Retrospective comparison of quality indicators using chart abstracted versus electronically available data from multiple sources., Methods: We compared the sensitivity and specificity of eCQMs created from structured data from electronic health records (EHRs) linked to administrative and cancer registry data to data abstracted from patients' electronic health records. Twenty-nine measures of care were assessed in 15,394 patients with either incident lung or prostate cancer from 2007 and 2008, respectively, and who were treated in the Veteran's Health Administration (VHA)., Results: It was feasible to develop eCQMs for 11 of 18 (61%) lung cancer measures, 4 (22%) of which were considered to be valid measures of the care constructs. Among prostate cancer measures, 6 of 11 (55%) were feasible, and 4 (36%) were both feasible and valid. Of the 29 metrics, data was available to create eCQMs for 17 (59%) cancer care metrics, and 8 (28%) were considered valid., Conclusions: In a large integrated healthcare system with nationally standardized electronic health records, administrative, and cancer registry data, 28% of cancer quality measures developed for chart abstraction could be translated into valid eCQMs. These results raise much concern about the development of electronic clinical quality measures for cancer care, particularly in healthcare environments where data are disparate in both form and location.
- Published
- 2014
260. Defining Value in Cancer Care: AVBCC 2013 Steering Committee Report.
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Zweigenhaft B, Bosserman L, Kenney JT Jr, Lawless GD, Marsland TA, Deligdish CK, Burgoyne DS, Knopf KB, Long DM, McKercher P, Owens GM, Hennessy JE, Lang JR, Malin J, Natelson L, Palmgren MC, Slotnik J, Shockney LD, and Vogenberg FR
- Abstract
The AVBCC Annual Meeting experiences exponential growth in attendance and participation as oncologists, payers, employers, managed care executives, patient advocates, and drug manufacturers convened in Hollywood, FL, on May 2-5, 2013, for the Third Annual Conference of the Association for Value-Based Cancer Care (AVBCC). The conference presented an all-inclusive open forum for stakeholder dialogue and integration across the cancer care continuum, facilitating an open dialogue among the various healthcare stakeholders to align their perspectives around the urgent need to address value in cancer care, costs, patient education, safety, outcomes, and quality. The AVBCC 2013 Steering Committee was held on the first day of the conference to define value in cancer care. The committee was divided into 7 groups, each representing a key stakeholder in oncology. The goal of the Steering Committee was to define value from the particular point of view of each of the stakeholder groups and to suggest how that particular perspective can contribute to the value proposition in oncology, by balancing cost, quality, and access to care to improve overall patient outcomes. The following summary highlights the major points addressed by each group.
- Published
- 2013
261. Adherence to adjuvant hormone therapy in low-income women with breast cancer: the role of provider-patient communication.
- Author
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Liu Y, Malin JL, Diamant AL, Thind A, and Maly RC
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- Adult, Aged, Aged, 80 and over, Antineoplastic Agents, Hormonal therapeutic use, Breast Neoplasms drug therapy, Communication, Epidemiologic Factors, Female, Humans, Middle Aged, Physician-Patient Relations, Breast Neoplasms epidemiology, Medication Adherence, Poverty
- Abstract
To assess the impact of patient-provider communication on adherence to tamoxifen (TAM) and aromatase inhibitors (AIs) 36 months after breast cancer (BC) diagnosis in a low-income population of women. California statewide surveys were conducted among 921 low-income women with BC at 6, 18, and 36 months after BC diagnosis. A subset of 303 women with stage I-III BC who initiated hormone treatment after diagnosis was identified. Bivariate and multivariate logistic regression analyses were performed, and adjusted adherence rates were calculated. The main outcome measure was self-reported hormone use at 36 months after BC diagnosis and the chief independent variables were patient-centered communication after diagnosis by patient report as measured by the Consumer Assessment of Healthcare Providers and Systems (CAHPS) and patients' self-efficacy in patient-physician interactions (PEPPI). Overall adherence to TAM/AI was relatively high (88 %). Adjusted rates of adherence were 59 and 94 % for patients with the lowest versus highest scores on the CAHPS communication scale (AOR = 1.22, P = 0.006) and 72 versus 91 % for patients with the lowest and highest rating of PEPPI (AOR = 1.04, P = 0.04). Having at least one comorbid condition also increased the odds of adherence to hormonal therapy (AOR = 3.14, P = 0.03). Having no health insurance and experiencing side-effects from hormone treatment were barriers for adherence (AOR = 0.12, P = 0.001; AOR = 0.26, P = 0.003, respectively). Patient-centered communication and perceived self-efficacy in patient-physician interaction were significantly associated with patient adherence to ongoing TAM/AI therapy among low-income women with BC. Interventions on patient-provider communication may provide opportunities to improve patient outcomes in this vulnerable population.
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- 2013
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262. Preoperative breast MRI in early-stage breast cancer.
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Young P, Kim B, and Malin JL
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- Breast Neoplasms mortality, Female, Humans, Mastectomy, Mastectomy, Segmental, Models, Theoretical, Quality-Adjusted Life Years, Treatment Outcome, Breast Neoplasms diagnosis, Breast Neoplasms surgery, Magnetic Resonance Imaging statistics & numerical data, Preoperative Care
- Abstract
Rapid uptake of new imaging technology is a major contributor to rising healthcare costs. Preoperative breast magnetic resonance imaging (MRI) for patients with early-stage breast cancer has dramatically increased in use without the evidence of improved outcomes compared to standard assessment and is associated with higher rates of mastectomy. A decision analytic model was developed to evaluate the impact of adding breast MRI to the preoperative evaluation of women with early-stage breast cancer who were candidates for breast-conserving therapy on patient outcomes measured in quality-adjusted life years (QALYs). Model inputs, including survival, recurrence rates, and health utilities, were obtained from a comprehensive literature review. One-way sensitivity analyses were performed to estimate threshold values for key parameters at which adding MRI would become the optimal imaging strategy over standard assessment. Preoperative MRI resulted in 17.77 QALYs compared to 17.86 QALYs with standard assessment, a decrease of 0.09 QALYs or 34 days. In sensitivity analyses, standard assessment was associated with better patient outcomes than preoperative breast MRI across all plausible probabilities for mastectomy, local recurrence, and health utilities. For routine preoperative breast MRI to become the optimal strategy, the conversion rate to mastectomy after preoperative MRI would need to be <1 % (versus the range of 3.6-33 % reported in the literature). Routine preoperative breast MRI appears to confer no advantage over the standard diagnostic evaluations for early-stage breast cancer and may lead to worse patient outcomes.
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- 2012
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263. Defining Value in Cancer Care: AVBCC 2012 Steering Committee Report.
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Beed G, Owens GM, Benson AB 3rd, Klein IM, Silver SM, Beveridge RA, Malin J, Sprandio JD, Deligdish CK, Mitchell M, Vogenberg FR, Fox J, and Newcomer LN
- Abstract
Approximately 200 oncologists, payers, employers, managed care executives, pharmacy benefit managers, and other healthcare stakeholders convened in Houston, TX, on March 28-31, 2012, for the Second Annual Conference of the Association for Value-Based Cancer Care (AVBCC). The mission of the conference was to align the various perspectives around the growing need of defining value in cancer care and developing strategies to enhance patient outcomes. The AVBCC conference presented a forum for the various viewpoints from all the stakeholders across the cancer care continuum, featuring more than 20 sessions and symposia led by nearly 30 oncology leaders. The discussions focused on current trends and challenges in optimizing value in oncology by reducing or controlling cost while improving care quality and patient outcomes, introducing emerging approaches to management and tools that providers and payers are using to enhance cancer care collaboratively. The AVBCC Second Annual Conference was opened by a Steering Committee discussion of 11 panel members who attempted to define value in cancer care and articulated action steps that can help to implement value into cancer care delivery. The following summary represents highlights from the Steering Committee discussion, which was moderated by Gene Beed, MD, and Gary M. Owens, MD.
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- 2012
264. Early dissemination of bevacizumab for advanced colorectal cancer: a prospective cohort study.
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Zafar SY, Malin JL, Grambow SC, Abbott DH, Schrag D, Kolimaga JT, Zullig LL, Weeks JC, Fouad MN, Ayanian JZ, Wallace R, Kahn KL, Ganz PA, Catalano P, West DW, and Provenzale D
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- Aged, Aged, 80 and over, Antibodies, Monoclonal, Humanized administration & dosage, Bevacizumab, Camptothecin administration & dosage, Camptothecin analogs & derivatives, Comorbidity, Drug Approval, Female, Humans, Irinotecan, Logistic Models, Male, Middle Aged, Odds Ratio, Organoplatinum Compounds administration & dosage, Oxaliplatin, Prospective Studies, Antibodies, Monoclonal, Humanized therapeutic use, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Colorectal Neoplasms drug therapy
- Abstract
Background: We describe early dissemination patterns for first-line bevacizumab given for metastatic colorectal cancer treatment., Methods: We analyzed patient surveys and medical records for a population-based cohort with metastatic colorectal cancer treated in multiple regions and health systems in the United States (US). Eligible patients were diagnosed with metastatic colorectal cancer and initiated first-line chemotherapy after US Food & Drug Administration (FDA) bevacizumab approval in February 2004. First-line bevacizumab therapy was defined as receiving bevacizumab within 8 weeks of starting chemotherapy for metastatic colorectal cancer. We evaluated factors associated with first-line bevacizumab treatment using logistic regression., Results: Among 355 patients, 31% received first-line bevacizumab in the two years after FDA approval, including 26% of men, 41% of women, and 16% of those ≥ 75 years. Use rose sharply within 6 months after FDA approval, then plateaued. 20% of patients received bevacizumab in combination with irinotecan; 53% received it with oxaliplatin. Men were less likely than women to receive bevacizumab (adjusted OR 0.55; 95% CI 0.32-0.93; p = 0.026). Patients ≥ 75 years were less likely to receive bevacizumab than patients < 55 years (adjusted OR 0.13; 95% CI 0.04-0.46; p = 0.001)., Conclusions: One-third of eligible metastatic colorectal cancer patients received first-line bevacizumab shortly after FDA approval. Most patients did not receive bevacizumab as part of the regimen used in the pivotal study leading to FDA approval.
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- 2011
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265. Cost-effectiveness of 70-gene MammaPrint signature in node-negative breast cancer.
- Author
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Chen E, Tong KB, and Malin JL
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- Adult, Breast Neoplasms economics, Breast Neoplasms mortality, Chemotherapy, Adjuvant economics, Cost-Benefit Analysis, Decision Support Techniques, Disease Progression, Female, Humans, Markov Chains, Middle Aged, Prognosis, Quality of Life, Registries, Risk Assessment, Risk Reduction Behavior, Survival Analysis, United States, Young Adult, Antineoplastic Agents therapeutic use, Breast Neoplasms drug therapy, Gene Expression Profiling economics, Oligonucleotide Array Sequence Analysis economics
- Abstract
Objective: To evaluate the cost-effectiveness of 70-gene MammaPrint signature (Agendia Inc, Huntington Beach, CA) vs Adjuvant! Online software (AS) (http://www.adjuvantonline.com) in patients 60 years or younger with early-stage breast cancer., Study Design: Cost-effectiveness and cost-utility analyses from a US payer perspective., Methods: A Markov model with 3 health states was constructed. In the base case model, risk classification and patient outcomes were based on a 70-gene signature validation study. Efficacy of chemotherapy was derived from a published meta-analysis of clinical trials. An alternative model using data from AS and from the Surveillance, Epidemiology and End Results registry was built to examine the external validity of the base case model. The incremental benefits, costs, and cost-effectiveness of treatment guided by 70-gene signature were calculated., Results: In the base case model, 70-gene signature reclassified 29% of patients and spared 10% of patients from chemotherapy. Compared with the AS strategy, the 70-gene signature strategy was associated with $1440 higher total cost per patient and with 0.14 additional life-year or 0.15 additional quality-adjusted life-year. Overall, the incremental cost-effectiveness ratios were approximately $10,000 per life-year or quality-adjusted life-year in the base case model and $700 in the alternative model. The model results were sensitive to estrogen receptor status, the proportion of patients classified as high risk vs low risk, and the overall survival in each risk group., Conclusion: A 70-gene signature is likely to be a cost-effective strategy to guide adjuvant chemotherapy treatment in younger patients with early-stage breast cancer.
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- 2010
266. Colony-stimulating factor prescribing patterns in patients receiving chemotherapy for cancer.
- Author
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Ramsey SD, McCune JS, Blough DK, McDermott CL, Clarke L, Malin JL, and Sullivan SD
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- Aged, Cohort Studies, Female, Humans, Male, Middle Aged, Retrospective Studies, SEER Program, Washington, Colony-Stimulating Factors administration & dosage, Neoplasms drug therapy, Practice Patterns, Physicians'
- Abstract
Objective: To examine variables influencing colony-stimulating factor (CSF) prescription as primary prophylaxis versus other use during patients' initial chemotherapy course among a large sample of health insurance records., Study Design: Retrospective cohort study., Methods: Adults 25 years or older with a diagnosis of breast, colorectal, or non-small cell lung cancer (NSCLC) between January 1, 2002, and December 31, 2005, were identified from the western Washington State Surveillance, Epidemiology, and End Results Seattle Puget Sound registry. We linked these records to health insurance claims. Chemotherapy regimens identified from insurance claims were categorized as carrying high, intermediate, or low risk of myelosuppression according to the National Comprehensive Cancer Network guidelines and the literature. Colony-stimulating factor use was described as primary prophylaxis, other use, or no use, and logistic regression analysis identified factors associated with CSF use., Results: For patients with breast cancer, colorectal cancer, and NSCLC, respectively, 58%, 0%, and 28% received CSFs as primary prophylaxis in conjunction with high-risk chemotherapy regimens, whereas 10%, 7%, and 21% did so in conjunction with low-risk chemotherapy regimens. Prophylactic CSF use increased from 2002 to 2005 for breast cancer but remained constant for colorectal cancer and for NSCLC., Conclusions: As primary prophylaxis, CSF use is underutilized based on recommendations for patients having cancer who receive chemotherapy regimens carrying high febrile neutropenia risk and may be overutilized for patients who receive chemotherapy regimens carrying low febrile neutropenia risk. Further research is needed to understand the barriers to implementing guidelines in clinical practice.
- Published
- 2010
267. Patterns of use and risks associated with erythropoiesis-stimulating agents among Medicare patients with cancer.
- Author
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Hershman DL, Buono DL, Malin J, McBride R, Tsai WY, and Neugut AI
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- Aged, Aged, 80 and over, Analysis of Variance, Anemia chemically induced, Anemia therapy, Antineoplastic Agents administration & dosage, Blood Transfusion statistics & numerical data, Breast Neoplasms drug therapy, Carcinoma, Non-Small-Cell Lung drug therapy, Colonic Neoplasms drug therapy, Confounding Factors, Epidemiologic, Darbepoetin alfa, Erythropoietin administration & dosage, Erythropoietin adverse effects, Erythropoietin analogs & derivatives, Female, Humans, Lung Neoplasms drug therapy, Lymphoma, Large B-Cell, Diffuse drug therapy, Male, Medical Record Linkage, Medicare, Neoplasms mortality, Recombinant Proteins, Retrospective Studies, Risk Factors, SEER Program, United States epidemiology, Venous Thromboembolism chemically induced, Anemia drug therapy, Antineoplastic Agents adverse effects, Hematinics administration & dosage, Hematinics adverse effects, Neoplasms drug therapy, Practice Patterns, Physicians' statistics & numerical data
- Abstract
Background: Erythropoiesis-stimulating agents (erythropoietin and darbepoietin) have been approved to reduce the number of blood transfusions required during chemotherapy; however, concerns about the risks of venous thromboembolism and mortality exist., Methods: We identified patients who were aged 65 years or older in the Surveillance, Epidemiology, and End Results-Medicare database; who were diagnosed with colon, non-small cell lung, or breast cancer or with diffuse large B-cell lymphoma from January 1, 1991, through December 31, 2002; and who received chemotherapy. The main outcome measures were claims for use of an erythropoiesis-stimulating agent, blood transfusion, venous thromboembolism (ie, deep vein thrombosis or pulmonary embolism), and overall survival. We used multivariable logistic regression models to analyze the association of erythropoiesis-stimulating agent use with clinical and demographic variables. We used time-dependent Cox proportional hazards models to analyze the association of time to receipt of first erythropoiesis-stimulating agent with venous thromboembolism and overall survival. All statistical tests were two-sided., Results: Among 56,210 patients treated with chemotherapy from 1991 through 2002, 15,346 (27%) received an erythropoiesis-stimulating agent. The proportion of patients receiving erythropoiesis-stimulating agents increased from 4.8% in 1991 to 45.9% in 2002 (P < .001). Use was associated with more recent diagnosis, younger age, urban residence, comorbidities, receipt of radiation therapy, female sex, and metastatic or recurrent cancer. The rate of blood transfusion per year during 1991-2002 remained constant at 22%. Venous thromboembolism developed in 1796 (14.3%) of the 12,522 patients who received erythropoiesis-stimulating agent and 3400 (9.8%) of the 34,820 patients who did not (hazard ratio = 1.93, 95% confidence interval = 1.79 to 2.07). Overall survival was similar in both groups., Conclusion: Use of erythropoiesis-stimulating agent increased rapidly after its approval in 1991, but the blood transfusion rate did not change. Use of erythropoiesis-stimulating agents was associated with an increased risk of venous thromboembolism but not of mortality.
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- 2009
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268. The economic value of primary prophylaxis using pegfilgrastim compared with filgrastim in patients with breast cancer in the UK.
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Liu Z, Doan QV, Malin J, and Leonard R
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- Adult, Aged, Aged, 80 and over, Antineoplastic Agents adverse effects, Antineoplastic Agents therapeutic use, Breast Neoplasms blood, Breast Neoplasms drug therapy, Cost-Benefit Analysis, Decision Support Techniques, Female, Filgrastim, Granulocyte Colony-Stimulating Factor therapeutic use, Humans, Middle Aged, Models, Economic, National Health Programs economics, Neutropenia chemically induced, Neutropenia economics, Neutropenia prevention & control, Polyethylene Glycols, Recombinant Proteins, Survival Analysis, United Kingdom, Breast Neoplasms economics, Granulocyte Colony-Stimulating Factor economics
- Abstract
Background: Febrile neutropenia (FN) is a serious adverse event associated with myelotoxic chemotherapy that predisposes patients to life-threatening bacterial infections. Prophylaxis with granulocyte colony-stimulating factors (G-CSFs) from the first cycle of chemotherapy is recommended by the 2006 American Society of Clinical Oncology, 2008 National Comprehensive Cancer Network and 2006 European Organisation for Research and Treatment of Cancer guidelines when the overall risk of FN is approximately 20% or higher. Once-per-cycle pegfilgrastim and daily filgrastim are two commonly used G-CSFs with different dosing schedules and associated costs., Objective: To evaluate the cost effectiveness of pegfilgrastim versus filgrastim primary prophylaxis in women with early-stage breast cancer receiving chemotherapy in the UK., Methods: A decision-analytic model was constructed from the UK NHS perspective with a lifetime study horizon. The model simulated three clinical scenarios: scenario 1 assumed that pegfilgrastim and filgrastim had differential impact on the risk of FN; scenario 2 assumed additional differential impact on FN-related mortality; and scenario 3 assumed additional differential impact on chemotherapy relative dose intensity (RDI) with long-term survival effects. The base-case population included 45-year-old women with stage II breast cancer receiving four chemotherapy cycles, with an FN risk of approximately 20% or higher. Model inputs, including FN risk, FN case-fatality, RDI, impact of RDI on survival and utility scores, were based on a review of the literature and expert panel validation. Using data from the literature, it was estimated that the absolute risk of FN associated with pegfilgrastim was 5.5% lower than with 11-day filgrastim (7% vs 12.5%), and 10.5% lower than with 6-day filgrastim (7% vs 17.5%). Costs were taken from official price lists or the literature and included drugs, drug administration, FN-related hospitalizations and subsequent medical costs. Breast cancer mortality and all-cause mortality were obtained from official statistics. The main outcome measures were the costs ( pound, year 2006 values) per percentage decrease in (absolute) FN risk, per FN event avoided, per life-year gained (LYG), and per QALY gained. Model robustness was tested using deterministic and probabilistic sensitivity analyses., Results: Pegfilgrastim was cost saving compared with 11-day filgrastim ( pound 3196 vs pound 4315). Compared with 6-day filgrastim, pegfilgrastim was associated with a cost of pound 4200 per FN event avoided, or pound 42 per 1% decrease in absolute risk of FN, in scenario 1. In scenario 2, pegfilgrastim provided 0.055 more LYGs or 0.052 more QALYs at a minimal cost increase of pound 441 ( pound 3196 vs pound 2754) per person, yielding an incremental cost-effectiveness ratio (ICER) of pound 8075/LYG or pound 8526/QALY. In scenario 3, when all potential benefits of G-CSF were considered, the ICER became pound 3955/LYG or pound 4161/QALY. Results were most sensitive to the relative risk of FN for 6-day filgrastim versus pegfilgrastim., Conclusion: In this UK analysis, pegfilgrastim appears to dominate 11-day use of filgrastim. The value of pegfilgrastim versus 6-day filgrastim at pound 4161-8526/QALY was very favourable compared with the commonly used threshold in the UK. In this setting, primary prophylaxis with pegfilgrastim may be cost effective compared with filgrastim.
- Published
- 2009
- Full Text
- View/download PDF
269. Financial incentives for quality in breast cancer care.
- Author
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Tisnado DM, Rose-Ash DE, Malin JL, Adams JL, Ganz PA, and Kahn KL
- Subjects
- Aged, Cross-Sectional Studies, Female, Guideline Adherence, Humans, Male, Middle Aged, Observation, Patient Satisfaction, Physician Incentive Plans standards, Breast Neoplasms economics, Breast Neoplasms therapy, Medical Oncology economics, Medical Oncology standards, Physician Incentive Plans economics, Quality Assurance, Health Care economics
- Abstract
Objectives: To examine the use of financial incentives related to performance on quality measures reported by oncologists and surgeons associated with a population-based cohort of patients with breast cancer in Los Angeles County, California, and to explore the physician and practice characteristics associated with the use of these incentives among breast cancer care providers., Study Design: Cross-sectional observational study., Methods: Physician self-reported financial arrangements from a survey of 348 medical oncologists, radiation oncologists, and surgeons caring for patients with breast cancer in Los Angeles County (response rate, 76%). Physicians were asked whether they were subject to financial incentives for quality (ie, patient satisfaction surveys and adherence to practice guidelines). We examined the prevalence and correlates of incentives and performed multivariate logistic regression analyses to assess predictors of incentives, controlling for other covariates., Results: Twenty percent of respondents reported incentives based on patient satisfaction, and 15% reported incentives based on guideline adherence. The use of incentives for quality in this cohort of oncologists and surgeons was modest and was primarily associated with staff- or group-model health maintenance organization (HMO) settings. In other settings, important predictors were partial physician ownership interest, large practice size, and capitation., Conclusions: Most cancer care providers in Los Angeles County outside of staff- or group-model HMOs are not subject to explicit financial incentives based on quality-of-care measures. Those who are, seem more likely to be associated with large practice settings. New approaches are needed to direct financial incentives for quality toward specialists outside of staff- or group-model HMOs if pay-for-performance programs are to succeed in influencing care.
- Published
- 2008
270. Symptom management after breast cancer treatment: is it influenced by patient characteristics?
- Author
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Yoon J, Malin JL, Tisnado DM, Tao ML, Adams JL, Timmer MJ, Ganz PA, and Kahn KL
- Subjects
- Black or African American, Aged, Aged, 80 and over, Breast Neoplasms complications, Female, Hispanic or Latino, Humans, Middle Aged, Nausea etiology, Physicians, Sleep Wake Disorders etiology, Vomiting etiology, White People, Breast Neoplasms ethnology, Health Services Needs and Demand, Physician-Patient Relations
- Abstract
Purpose: With improved patient survival from breast cancer, more interest has evolved regarding the symptoms women experience in association with breast cancer treatments. We studied the extent to which symptoms for women with incident breast cancer are addressed by their physicians and how symptom management varies with patient characteristics., Methods: As part of the Los Angeles Women's (LAW) Study, we categorized women from a population-based study of incident breast cancer (n = 1,219) as having an unmet need if she had at least one severe symptom (any of the following: nausea/vomiting, arm problems, hot flashes, vaginal dryness, difficulty sleeping) for which she did not receive the help she wanted. Multivariable analyses predicted having any unmet need as a function of patient demographic and health characteristics., Results: The prevalence of unmet need varied by the type of symptom with the highest proportion of women receiving help for nausea and vomiting (0.91) and the lowest for vaginal dryness (0.48). Black women (OR = 3.61, 95% CI: [1.57, 8.31]), and Spanish-speaking Hispanic women (OR = 2.69, 95% CI: [1.22, 5.94]) were significantly more likely than white women to report an unmet need. More black and Hispanic women compared to white women cited the doctor not thinking treatment would benefit her (P = 0.02), not appreciating how much the problem bothered her (P = 0.03), not knowing about treatments (P < 0.0001), or insurance/cost barriers (P = 0.009) as reasons for her unmet need., Conclusion: These results show the persistence of racial disparities in the receipt of appropriate care within the health care system.
- Published
- 2008
- Full Text
- View/download PDF
271. Results of the National Initiative for Cancer Care Quality: how can we improve the quality of cancer care in the United States?
- Author
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Malin JL, Schneider EC, Epstein AM, Adams J, Emanuel EJ, and Kahn KL
- Subjects
- Adult, Aged, Evidence-Based Medicine, Female, Humans, Male, Medical Records, Middle Aged, Neoplasm Staging, Quality of Health Care, Retrospective Studies, Surveys and Questionnaires, United States, Breast Neoplasms pathology, Breast Neoplasms therapy, Cancer Care Facilities standards, Colorectal Neoplasms pathology, Colorectal Neoplasms therapy, Quality Assurance, Health Care, Quality Indicators, Health Care
- Abstract
Purpose: In 1999, the National Cancer Policy Board called attention to the quality of cancer care in the United States and recommended establishing a quality monitoring system with the capability of regularly reporting on the quality of care for patients with cancer., Methods: Using data from a patient survey 4 years after diagnosis and review of medical records, we determined the percentage of stage I to III breast cancer and stage II to III colorectal cancer survivors in five metropolitan statistical areas (MSAs) across the United States who received recommended care specified by a comprehensive set of explicit quality measures., Results: Two thousand three hundred sixty-six (63%) of 3,775 eligible patients responded to the survey, and 85% consented to have their medical records reviewed. Our final analytic sample (n = 1,765) included 47% of the eligible patients. Patients with breast and colorectal cancer received 86% of recommended care (95% CI, 86% to 87%) and 78% of recommended care (95% CI, 77% to 79%), respectively. Adherence to quality measures was less than 85% for 18 of the 36 breast cancer measures, and significant variation across MSAs was observed for seven quality measures. The percent adherence was less than 85% for 14 of the 25 colorectal cancer measures, and one quality measure demonstrated statistically significant variation across the MSAs., Conclusion: Initial management of patients with breast and colorectal cancer in the United States seemed consistent with evidence-based practice; however, substantial variation in adherence to some quality measures point to significant opportunities for improvement.
- Published
- 2006
- Full Text
- View/download PDF
272. The cost-quality trade-off: need for data quality standards for studies that impact clinical practice and health policy.
- Author
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Malin JL and Keating NL
- Subjects
- Breast Neoplasms therapy, Colorectal Neoplasms therapy, Humans, Data Collection economics, Health Policy, Research Design standards
- Published
- 2005
- Full Text
- View/download PDF
273. Bridging the divide: integrating cancer-directed therapy and palliative care.
- Author
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Malin JL
- Subjects
- Breast Neoplasms therapy, Delivery of Health Care standards, Female, Humans, Neoplasms therapy, Palliative Care, Quality of Health Care
- Published
- 2004
- Full Text
- View/download PDF
274. Developing a system to assess the quality of cancer care: ASCO's national initiative on cancer care quality.
- Author
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Schneider EC, Malin JL, Kahn KL, Emanuel EJ, and Epstein AM
- Subjects
- Confidentiality, Humans, United States, Medical Oncology, Neoplasms therapy, Quality Assurance, Health Care methods, Quality of Health Care, Societies, Medical
- Published
- 2004
- Full Text
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275. Understanding cancer treatment and outcomes: the Cancer Care Outcomes Research and Surveillance Consortium.
- Author
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Ayanian JZ, Chrischilles EA, Fletcher RH, Fouad MN, Harrington DP, Kahn KL, Kiefe CI, Lipscomb J, Malin JL, Potosky AL, Provenzale DT, Sandler RS, van Ryn M, Wallace RB, Weeks JC, and West DW
- Subjects
- Humans, National Institutes of Health (U.S.), United States, Neoplasms therapy, Outcome and Process Assessment, Health Care
- Published
- 2004
- Full Text
- View/download PDF
276. Improving colorectal cancer screening rates in a managed care health plan: recruitment of provider organizations for a randomized effectiveness trial.
- Author
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Ganz PA, Farmer MM, Belman M, Malin JL, Bastani R, Kahn KL, Dietrich A, and Fielding J
- Subjects
- California, Female, Humans, Insurance, Health, Los Angeles, Male, Mass Screening economics, Mass Screening standards, Middle Aged, Practice Guidelines as Topic, Program Evaluation, Randomized Controlled Trials as Topic, Sigmoidoscopy, Colorectal Neoplasms diagnosis, Managed Care Programs organization & administration, Mass Screening methods, Mass Screening organization & administration, Outcome and Process Assessment, Health Care, Research Design
- Abstract
Evidence-based guidelines recommend regular colorectal cancer (CRC) screening for adults 50 years and older, yet screening rates remain very low. In this paper we describe the challenges associated with recruitment and retention of provider organizations (POs) for a group randomized, controlled effectiveness trial to increase CRC screening, among patients in a managed care health insurance plan. Using the health plan as the sampling frame, we recruited POs to test a facilitated quality improvement program to increase CRC screening. Defined eligibility and recruitment procedures were used as part of this process. We successfully recruited 36 POs over the course of 9 months; however, there were many challenges associated with the recruitment and retention process, including difficulties in (a) identifying the PO medical director and the individual authorized to agree to study participation, (b) making contact with the medical director, and (c) obtaining the materials necessary to initiate the study. All of these factors delayed the research substantially. Retention activities were also a major challenge in that one-third of the medical directors changed during the course of the intervention. This study benefited from a strong partnership between the health plan and the research group. Although many challenges exist, there are tremendous opportunities that result from the design and conduct of effectiveness research in existing POs. Successful implementation of programs that are feasible and take advantage of existing quality improvement mechanisms within the PO has potential to improve CRC screening rates and can have a major public health impact.
- Published
- 2003
277. Quality-of-care indicators for early-stage prostate cancer.
- Author
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Spencer BA, Steinberg M, Malin J, Adams J, and Litwin MS
- Subjects
- Adenocarcinoma mortality, Adenocarcinoma pathology, Disease-Free Survival, Humans, Male, Prostatic Neoplasms mortality, Prostatic Neoplasms pathology, United States, Adenocarcinoma therapy, Benchmarking, Practice Patterns, Physicians' standards, Prostatic Neoplasms therapy, Quality Indicators, Health Care
- Abstract
Purpose: Decisions regarding treatment for early-stage prostate cancer are frustrated not only by inadequate evidence favoring one treatment modality but also by the absence of data comparing quality among providers. In fact, the choice of provider may be as important as the choice of treatment. We undertook this study to develop an infrastructure to evaluate variations in quality of care for men with early-stage prostate cancer., Methods: We enlisted several sources to develop a list of proposed quality-of-care indicators and covariates. After an extensive structured literature review and a series of focus groups with patients and their spouses, we conducted structured interviews with national academic leaders in prostate cancer treatment. We then convened an expert panel using the RAND consensus method to discuss and rate the validity and feasibility of the proposed quality indicators and covariates., Results: The panel endorsed 49 quality-of-care indicators and 14 covariates, which make up our final list of candidate measures. Several domains of quality are represented in the selected indicators, including patient volume, pretreatment referrals, preoperative testing, interpretation of pathology specimens, and 10-year disease-free survival. Covariates include measures of case-mix, such as patient age and comorbidity., Conclusion: This study establishes a foundation on which to build quality-of-care assessment tools to evaluate the treatment of early-stage prostate cancer. The next step is to field-test the indicators for feasibility, reliability, validity, and clinical utility in a population-based sample. This work will begin to inform medical decision-making for patients and their physicians.
- Published
- 2003
- Full Text
- View/download PDF
278. The case identification challenge in measuring quality of cancer care.
- Author
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Pearson ML, Ganz PA, McGuigan K, Malin JR, Adams J, and Kahn KL
- Subjects
- Breast Neoplasms diagnosis, Breast Neoplasms therapy, Data Collection, Government, Humans, Neoplasms therapy, Patient Care Planning, Quality Assurance, Health Care, Quality of Health Care, Registries
- Abstract
Purpose: The delivery of quality care to all patients with cancer has been named as a national priority within the American health care system. This article addresses the issues critical to case identification in cancer quality measurement and recommends possible strategies for accurately identifying a population of cancer patients., Methods: We present the measurement issues associated with the basic challenges of case identification strategies for quality measurement. We discuss two basic challenges: (1) accurately identifying all patients with the defining characteristics (eg, a diagnosis of breast cancer), and (2) identifying only patients with these characteristics., Results: Possible options for identifying newly diagnosed patients include using claims or other administrative data, cancer registries, cancer registry rapid case ascertainment, pathology laboratories, and physicians' offices. In the published literature, the sensitivity of claims varies from 75% to 95%, whereas central registries must have a 90% completeness rate to be certified. Most of these approaches, however, involve limitations to obtaining valid and comparable data across multiple settings., Conclusion: Using an existing data collection system staffed by skilled data collectors and managers should result in substantially more accurate and timely data. Registry officials and the government agencies that provide their support should be encouraged to adopt quality-of-care analyses as an important purpose of the registry system and to enhance their capacity to rapidly ascertain cases, collect the appropriate identifying information needed for patient contact, and verify stage at diagnosis. In order to meet the growing demand for timely, accurate information about quality of care, registries are likely to require additional support so they can enhance their capacity to rapidly ascertain cases, collect the appropriate identifying information needed for patient contact, and verify stage at diagnosis.
- Published
- 2002
- Full Text
- View/download PDF
279. Quality of breast cancer care: what do we know?
- Author
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Malin JL, Schuster MA, Kahn KA, and Brook RH
- Subjects
- Female, Humans, Quality Assurance, Health Care statistics & numerical data, Research trends, Breast Neoplasms therapy, Quality Assurance, Health Care standards, Quality of Health Care statistics & numerical data
- Abstract
Purpose: To critically review studies that describe patterns of care for breast cancer patients and to examine the data sources used for case identification and determining patterns of care., Methods: We searched the MEDLINE database (National Library of Medicine, Bethesda, MD) in August 2001 for studies of breast cancer care published from January 1985 to June 2001. Thirty-eight articles, describing 32 studies, met the inclusion criteria for this review., Results: According to the patterns of care literature, approximately 10% of women do not have an axillary lymph node dissection, 11% to 26% do not have their hormone receptor status reported, 20% do not receive radiation after breast-conserving surgery, and 30% to 70% of women with lymph node-positive breast cancer are not prescribed tamoxifen. Twenty-five (78%) of the studies relied on cancer registries for case identification. Cancer registries (47%) and the medical record (38%) were the most frequent sources of data on process of care. Twenty percent of the articles reported using more than one data source to determine patterns of care., Conclusion: Although more patterns of care research has taken place in breast cancer than in any other oncologic condition, we found the available data had many limitations. These limitations highlight the challenges of quality-of-care research. To track changes in the quality of cancer care that may result from our rapidly transforming health care system, we need reliable data on the quality of current practice.
- Published
- 2002
- Full Text
- View/download PDF
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