32 results on '"Baggett, Christopher D."'
Search Results
2. Home Time Among Older Adults With Acute Myeloid Leukemia Following Chemotherapy.
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Richardson, Daniel R., Zhou, Xi, Reeder-Hayes, Katherine, Jensen, Christopher E., Islam, Jessica, Loh, Kah Poh, Gupta, Arjun, Basch, Ethan, Bennett, Antonia V., Bridges, John F. P., Wheeler, Stephanie B., Wood, William A., Baggett, Christopher D., and Lund, Jennifer L.
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- 2024
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3. Simulating the population impact of interventions to reduce racial gaps in breast cancer treatment.
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Yanguela, Juan, Jackson, Bradford E, Reeder-Hayes, Katherine E, Roberson, Mya L, Rocque, Gabrielle B, Kuo, Tzy-Mey, LeBlanc, Matthew R, Baggett, Christopher D, Green, Laura, Laurie-Zehr, Erin, and Wheeler, Stephanie B
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BREAST cancer ,CANCER treatment ,HORMONE therapy ,HORMONE receptor positive breast cancer ,BLACK people ,CANCER prognosis - Abstract
Background Inequities in guideline-concordant treatment receipt contribute to worse survival in Black patients with breast cancer. Inequity-reduction interventions (eg, navigation, bias training, tracking dashboards) can close such treatment gaps. We simulated the population-level impact of statewide implementation of inequity-reduction interventions on racial breast cancer inequities in North Carolina. Methods Using registry-linked multipayer claims data, we calculated inequities between Black and White patients receiving endocrine therapy (n = 12 033) and chemotherapy (n = 1819). We then built cohort-stratified (endocrine therapy and chemotherapy) and race-stratified Markov models to simulate the potential increase in the proportion of patients receiving endocrine therapy or chemotherapy and subsequent improvements in breast cancer outcomes if inequity-reducing intervention were implemented statewide. We report uncertainty bounds representing 95% of simulation results. Results In total, 75.6% and 72.1% of Black patients received endocrine therapy and chemotherapy, respectively, over the 2006-2015 and 2004-2015 periods (vs 79.3% and 78.9% of White patients, respectively). Inequity-reduction interventions could increase endocrine therapy and chemotherapy receipt among Black patients to 89.9% (85.3%, 94.6%) and 85.7% (80.7%, 90.9%). Such interventions could also decrease 5-year and 10-year breast cancer mortality gaps from 3.4 to 3.2 (3.0, 3.3) and from 6.7 to 6.1 (5.9, 6.4) percentage points in the endocrine therapy cohorts and from 8.6 to 8.1 (7.7, 8.4) and from 8.2 to 7.8 (7.3, 8.1) percentage points in the chemotherapy cohorts. Conclusions Inequity-focused interventions could improve cancer outcomes for Black patients, but they would not fully close the racial breast cancer mortality gap. Addressing other inequities along the cancer continuum (eg, screening, pre- and postdiagnosis risk factors) is required to achieve full equity in breast cancer outcomes. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Functional Status Associations With Treatment Receipt and Outcomes Among Older Adults Newly Diagnosed With Multiple Myeloma.
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Jensen, Christopher Edward, Kuo, Tzy-Mey, LeBlanc, Matthew R., Baggett, Christopher D., Duchesneau, Emilie D., Zhou, Xi, Reeder-Hayes, Katherine E., and Lund, Jennifer L.
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OLDER people ,FUNCTIONAL status ,MULTIPLE myeloma ,MEDICAL care use ,OLDER patients - Abstract
PURPOSE: Multiple myeloma (MM) is a prevalent hematologic malignancy in older adults, who often experience physical disability, increased health care usage, and reduced treatment tolerance. Home health (HH) services are frequently used by this group, but the relationship between disability, HH use, and MM treatment receipt is unclear. This study examines the connections between disability, treatment receipt, and survival outcomes in older adults with newly diagnosed MM using a nationwide data set. METHODS: The SEER-Medicare data set was used to identify adults aged 66 years and older diagnosed with MM from 2010 to 2017, who used HH services the year before diagnosis. Disability was assessed with the Outcome and Assessment Information Set, using a composite score derived from items related to ability to complete activities of daily living. Mortality, therapy receipt, and health care utilization patterns were evaluated. RESULTS: Of 37,280 older adults with MM, 6,850 (18.2%) used HH services before diagnosis. Moderate disability at HH assessment resulted in similar MM-directed therapy receipt as mild disability, with comparable health care usage after diagnosis to severe disability. HH users had a higher comorbidity burden and higher mortality (adjusted risk ratio for 3-year mortality: 1.59 [95% CI, 1.55 to 1.64]). Severe functional disability before diagnosis was strongly related to postdiagnosis mortality. CONCLUSION: Among older adults with MM receiving HH services, disability is a predictor of early mortality. Moderately disabled individuals undergo similar therapy intensity as the mildly disabled but experience increased acute care utilization. Previous HH use could identify patients with MM requiring intensive support during therapy initiation. Study links disability in older patients with myeloma to higher mortality and health care use. #MMsm. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Risk of adverse birth outcomes after adolescent and young adult cancer.
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Anderson, Chelsea, Baggett, Christopher D, Engel, Stephanie M, Getahun, Darios, Cannizzaro, Nancy T, Mitra, Sara, Meernik, Clare, Moy, Lisa M, Laurent, Cecile A, Zhou, Xi, Xu, Lanfang, Kwan, Marilyn L, Wood, William A, Luke, Barbara, Chao, Chun R, Kushi, Lawrence H, and Nichols, Hazel B
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CANCER diagnosis ,CANCER chemotherapy ,PREMATURE labor - Abstract
Background Many women diagnosed with cancer as adolescents and young adults (AYAs, age 15-39 years) want biological children after cancer but lack information on the potential impact of their cancer history on future reproductive outcomes. We investigated the risk of adverse birth outcomes among AYA cancer survivors. Methods We identified insured women diagnosed with AYA breast cancer, thyroid cancer, gynecologic cancers, lymphoma, or melanoma from 2003 to 2016 in the state of North Carolina or the Kaiser Permanente health care systems in northern and southern California. Post-diagnosis births to cancer survivors were each matched with up to 5 births to women without cancer. Risk ratios for preterm birth (<37 completed weeks), very preterm birth (<34 completed weeks), low birth weight (<2500 g), and small for gestational age (SGA, <10th percentile of weight for gestational age) were estimated using modified Poisson regression. Results Analyses included 1648 births to 1268 AYA cancer survivors and 7879 births to 6066 women without cancer. Overall, risk of preterm birth, very preterm birth, low birth weight, and SGA did not significantly differ between births to women with and without cancer. However, births to women with gynecologic cancers had a significantly increased risk of low birth weight (risk ratio = 1.82; 95% confidence interval: 1.03 to 3.21) and suggested increased risk of preterm birth (risk ratio = 1.59; 95% confidence interval: 0.99 to 2.54). Chemotherapy exposure was not associated with increased risk of adverse birth outcomes. Conclusions Women with gynecologic cancers, but not other cancers, had an increased risk of adverse birth outcomes compared to women without cancer. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Association of Receipt of Systemic Treatment for Melanoma With Insurance Type in North Carolina.
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Adamson, Adewole S., Jackson, Bradford E., Baggett, Christopher D., Thomas, Nancy E., Haynes, Alex B., and Pignone, Michael P.
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- 2023
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7. Disparities in fertility preservation use among adolescent and young adult women with cancer.
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Meernik, Clare, Engel, Stephanie M., Wardell, Ally, Baggett, Christopher D., Gupta, Parul, Rodriguez-Ormaza, Nidia, Luke, Barbara, Baker, Valerie L., Wantman, Ethan, Rauh-Hain, Jose Alejandro, Mersereau, Jennifer E., Olshan, Andrew F., Smitherman, Andrew B., Cai, Jianwen, and Nichols, Hazel B.
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Purpose: Women face multiple barriers to fertility preservation after cancer diagnosis, but few studies have examined disparities in use of these services. Methods: Women aged 15–39 years diagnosed with cancer during 2004–2015 were identified from the North Carolina Central Cancer Registry and linked to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System. Women who cryopreserved oocytes or embryos for fertility preservation (n = 96) were compared to women who received gonadotoxic treatment but did not use fertility preservation (n = 7964). Conditional logistic and log-binomial regression were used to estimate odds ratios (ORs) or prevalence ratios (PRs) and 95% confidence intervals (CIs). Results: Few adolescent and young adult women with cancer in our study (1.2%) used fertility preservation. In multivariable regression, women less likely to use fertility preservation were older at diagnosis (ages 25–29 vs. 35–39: OR = 6.27, 95% CI: 3.35, 11.73); non-Hispanic Black (vs. non-Hispanic White: PR = 0.44, 95% CI: 0.24, 0.79); and parous at diagnosis (vs. nulliparous: PR = 0.24, 95% CI: 0.13, 0.45); or lived in census tracts that were non-urban (vs. urban: PR = 0.12, 95% CI: 0.04, 0.37) or of lower socioeconomic status (quintiles 1–3 vs. quintiles 4 and 5: PR = 0.39, 95% CI: 0.25, 0.61). Conclusions: Women with cancer who were older, non-Hispanic Black, parous, or living in areas that were non-urban or of lower socioeconomic position were less likely to use fertility preservation. Implications for Cancer Survivors: Clinical and policy interventions are needed to ensure equitable access to fertility services among women facing cancer treatment–related infertility. [ABSTRACT FROM AUTHOR]
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- 2023
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8. Challenges and Opportunities of Epidemiological Studies to Reduce the Burden of Cancers in Young Adults.
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Nichols, Hazel B., Wernli, Karen J., Chawla, Neetu, O'Meara, Ellen S., Gray, Marlaine Figueroa, Green, Laura E., Anderson, Chelsea, Baggett, Christopher D., Casperson, Mallory, Chao, Chun, Jones, Salene M. W., Kirchhoff, Anne C., Kuo, Tzy-Mey, Lee, Catherine, Malogolowkin, Marcio, Quesenberry, Charles P., Ruddy, Kathryn J., Wun, Ted, Zebrack, Brad, and Chubak, Jessica
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- 2023
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9. Race, geography, and risk of breast cancer treatment delays: A population‐based study 2004–2015.
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Reeder‐Hayes, Katherine E., Jackson, Bradford E., Baggett, Christopher D., Kuo, Tzy‐Mey, Gaddy, Jacquelyne J., LeBlanc, Matthew R., Bell, Emily F., Green, Laura, and Wheeler, Stephanie B.
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DISEASE risk factors ,RACE ,BREAST cancer ,CANCER treatment ,TREATMENT delay (Medicine) ,BLACK people - Abstract
Background: Treatment delays affect breast cancer survival and constitute poor‐quality care. Black patients experience more treatment delay, but the relationship of geography to these disparities is poorly understood. Methods: We studied a population‐based, retrospective, observational cohort of patients with breast cancer in North Carolina between 2004 and 2017 from the Cancer Information and Population Health Resource, which links cancer registry and sociodemographic data to multipayer insurance claims. We included patients >18 years with Stage I–III breast cancer who received surgery or chemotherapy as their first treatment. Delay was defined as >60 days from diagnosis to first treatment. Counties were aggregated into nine Area Health Education Center regions. Race was dichotomized as Black versus non‐Black. Results: Among 32,626 patients, 6190 (19.0%) were Black. Black patients were more likely to experience treatment delay >60 days (15.0% of Black vs. 8.0% of non‐Black). Using race‐stratified modified Poisson regression, age‐adjusted relative risk of delay in the highest risk region was approximately twice that in the lowest risk region among Black (relative risk, 2.1; 95% CI, 1.6–2.6) and non‐Black patients (relative risk, 1.9; 95% CI, 1.5–2.3). Adjustment for clinical and sociodemographic features only slightly attenuated interregion differences. The magnitude of the racial gap in treatment delay varied by region, from 0.0% to 9.4%. Conclusions: Geographic region was significantly associated with risk of treatment delays for both Black and non‐Black patients. The magnitude of racial disparities in treatment delay varied markedly between regions. Future studies should consider both high‐risk geographic regions and high‐risk patient groups for intervention to prevent delays. This study found that geographic region was significantly associated with risk of cancer treatment delays for both Black and non‐Black patients, but the magnitude of racial disparities in treatment delay varied markedly between regions. Future studies should consider both high‐risk geographic regions and high‐risk patient groups for targeted intervention to prevent delays in cancer treatment. [ABSTRACT FROM AUTHOR]
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- 2023
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10. Urban‐rural differences in tobacco product availability in food retailers, United States, 2017.
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Reimold, Alexandria E., Kong, Amanda Y., Delamater, Paul L., Baggett, Christopher D., and Golden, Shelley D.
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SALES personnel ,CONFIDENCE intervals ,RURAL conditions ,MULTIPLE regression analysis ,POPULATION geography ,FOOD supply ,COMPARATIVE studies ,RESEARCH funding ,DESCRIPTIVE statistics ,TOBACCO products ,METROPOLITAN areas ,SOCIODEMOGRAPHIC factors ,ODDS ratio - Abstract
Purpose: Tobacco use prevalence is higher in rural compared to urban settings, possibly due to differences in tobacco availability, including the option to purchase food and other essential items in stores that do not sell tobacco (tobacco‐free food retailers). The goal of this research is to determine whether tobacco‐free food retailer availability varies by urbanicity/rurality. Methods: Using the 2017 National Establishment Time‐Series database, we identified food retailers across all census tracts containing food retailers in the United States (n = 66,053). We used multivariable logistic and linear regression models to test whether tobacco‐free food retailer availability varied across 4‐levels of census tract urbanicity/rurality (urban, suburban, large town, and small town/rural) for 2 outcomes: (1) the presence of at least 1 tobacco‐free food retailer and (2) the percent of all food retailers that were tobacco‐free. Findings: Compared to urban core census tracts, suburban census tracts had a lower odds (aOR = 0.77, 95% CI = 0.73, 0.81) of having at least 1 tobacco‐free food retailer, while small town/rural census tracts had greater odds (aOR = 1.23, 95% CI = 1.15, 1.32). Suburban census tracts (B = –2.29, P <.001) and large town census tracts (B = –1.90, P <.001) also had a lower percentage of tobacco‐free food retailers compared to urban census tracts. Conclusions: Compared to urban cores, tobacco‐free food retailers were less prevalent in suburban and large town areas, though similarly or slightly more available in rural areas. Future research should assess whether these differences depend on varying store types. [ABSTRACT FROM AUTHOR]
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- 2023
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11. End-of-Life Care for Patients With Metastatic Renal Cell Carcinoma in the Era of Oral Anticancer Therapy.
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Dzimitrowicz, Hannah E., Wilson, Lauren E., Jackson, Bradford E., Spees, Lisa P., Baggett, Christopher D., Greiner, Melissa A., Kaye, Deborah R., Tian Zhang, George, Daniel, Scales Jr, Charles D., Pritchard, Jessica E., Leapman, Michael S., Gross, Cary P., Dinan, Michaela A., and Wheeler, Stephanie B.
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RENAL cell carcinoma ,MEDICAL quality control ,HOSPICE care ,REPORTING of diseases ,INTENSIVE care units ,INTRAVENOUS therapy ,TERMINAL care ,CONFIDENCE intervals ,HOSPITAL emergency services ,ORAL drug administration ,CANCER chemotherapy ,MULTIPLE regression analysis ,METASTASIS ,ANTINEOPLASTIC agents ,RETROSPECTIVE studies ,ACQUISITION of data ,CANCER patients ,HOSPITAL mortality ,QUALITY assurance ,MEDICAL records ,RESEARCH funding ,DESCRIPTIVE statistics ,ODDS ratio ,MEDICARE - Abstract
PURPOSE New therapies including oral anticancer agents (OAAs) have improved outcomes for patients with metastatic renal cell carcinoma (mRCC). However, little is known about the quality of end-of-life (EOL) care and systemic therapy use at EOL in patients receiving OAAs or with mRCC. METHODS We retrospectively analyzed EOL care for decedents with mRCC in two parallel cohorts: (1) patients (RCC diagnosed 2004-2015) from the University of North Carolina's Cancer Information and Population Health Resource (CIPHR) and (2) patients (diagnosed 2007-2015) from SEER-Medicare. We assessed hospice use in the last 30 days of life and existing measures of poor-quality EOL care: systemic therapy, hospital admission, intensive care unit admission, and.1 ED visit in the last 30 days of life; hospice initiation in the last 3 days of life; and in-hospital death. Associations between OAA use, patient and provider characteristics, and EOL care were examined using multivariable logistic regression. RESULTS We identified 410 decedents in the CIPHR cohort (53.4% received OAA) and 1,508 in SEER-Medicare (43.5% received OAA). Prior OAA use was associated with increased systemic therapy in the last 30 days of life in both cohorts (CIPHR: 26.5% v 11.0%; P < .001; SEER-Medicare: 23.4% v 11.7%; P < .001), increased inhospital death in CIPHR, and increased hospice in the last 30 days in SEER-Medicare. Older patients were less likely to receive systemic therapy or be admitted in the last 30 days or die in hospital. CONCLUSION Patients with mRCC who received OAAs and younger patients experienced more aggressive EOL care, suggesting opportunities to optimize high-quality EOL care in these groups. [ABSTRACT FROM AUTHOR]
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- 2023
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12. Time to cancer treatment and reproductive outcomes after fertility preservation among adolescent and young adult women with cancer.
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Meernik, Clare, Engel, Stephanie M., Baggett, Christopher D., Wardell, Ally, Zhou, Xi, Ruddy, Kathryn J., Wantman, Ethan, Baker, Valerie L., Luke, Barbara, Mersereau, Jennifer E., Cai, Jianwen, Olshan, Andrew F., Smitherman, Andrew B., and Nichols, Hazel B.
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FERTILITY preservation ,YOUNG adults ,CANCER treatment ,YOUNG women ,REPRODUCTIVE health ,IMMUNE reconstitution inflammatory syndrome - Abstract
Background: Fertility preservation (FP) may be underused after cancer diagnosis because of uncertainty around delays to cancer treatment and subsequent reproductive success. Methods: Women aged 15 to 39 years diagnosed with cancer between 2004 and 2015 were identified from the North Carolina Central Cancer Registry. Use of assisted reproductive technology (ART) after cancer diagnosis between 2004 and 2018 (including FP) was assessed through linkage to the Society for Assisted Reproductive Technology. Linear regression was used to examine time to cancer treatment among women who did (n = 95) or did not (n = 469) use FP. Modified Poisson regression was used to estimate risk ratios (RRs) and 95% CIs for pregnancy and birth based on timing of ART initiation relative to cancer treatment (n = 18 initiated before treatment for FP vs n = 26 initiated after treatment without FP). Results: The median time to cancer treatment was 9 to 33 days longer among women who used FP compared with women who did not, matched on clinical factors. Women who initiated ART before cancer treatment may be more likely to have a live birth given pregnancy compared with women who initiated ART after cancer treatment (age‐adjusted RR, 1.47; 95% CI, 0.98‐2.23), though this may be affected by the more frequent use of gestational carriers in the former group (47% vs 20% of transfer cycles, respectively). Conclusions: FP delayed gonadotoxic cancer treatment by up to 4.5 weeks, a delay that would not be expected to alter prognosis for many women. Further study of the use of gestational carriers in cancer populations is warranted to better understand its effect on reproductive outcomes. In this statewide retrospective cohort, adolescent and young adult women with cancer who used fertility preservation experienced up to a 4.5‐week delay in receipt of first gonadotoxic cancer treatment, but may have an increased likelihood of live birth after achieving pregnancy compared to women with cancer who used assisted reproduction without prior fertility preservation. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Concurrent prescribing of opioids with other sedating medications after cancer diagnosis: a population-level analysis.
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Check, Devon K., Baggett, Christopher D., Kim, KyungSu, Merlin, Jessica S., Oeffinger, Kevin C., Winn, Aaron N., Roberts, Megan C., Robinson, Timothy, and Dinan, Michaela A.
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BENZODIAZEPINES ,MEDICARE ,TRANQUILIZING drugs ,RETROSPECTIVE studies ,OPIOID analgesics ,MEDICAL records ,ACQUISITION of data ,TUMORS - Abstract
Purpose: Cancer is a major reason for concurrent prescription of opioids with other sedating medications-particularly benzodiazepines and gabapentinoids-yet population-based assessments of the extent and predictors of concurrent prescribing among clinically and demographically diverse patients with cancer are lacking.Methods: We conducted a retrospective cohort study of patients with non-metastatic cancer using North Carolina cancer registry data linked with Medicare and private insurance claims (2013-2016). We used modified Poisson regression to assess associations of patient characteristic with adjusted relative risk (aRR) of new concurrent prescribing of opioids with benzodiazepines or gabapentinoids after diagnosis.Results: Overall, 15% of patients were concurrently prescribed opioids with benzodiazepines or gabapentinoids. Characteristics independently associated with an increased risk of concurrent prescribing included cancer type (e.g., aRR cervical vs. colorectal cancer: 1.55, 95% CI: 1.12-2.14); prior use of opioids (aRR: 2.43, 95% CI:2.21-2.67), benzodiazepines (aRR: 4.08, 95% CI: 3.72-4.48), or gabapentinoids (3.82, 95% CI: 3.31-4.39), and premorbid mental health conditions, including substance use disorder (aRR: 1.27, 95% CI: 1.05-1.54). Black and Hispanic patients were less likely to experience concurrent prescribing (aRR, Black vs. White: 0.35, 95% CI: 0.15-0.83; aRR, Hispanic vs. White: 0.75, 95% CI: 0.66-0.85).Conclusion: Approximately 1 in 7 patients with cancer was concurrently prescribed opioids with other sedating medications. Associations between patient characteristics and risk of concurrent prescribing highlight predictors of concurrent prescribing and suggest a rationale for systematic assessment of substance use history at diagnosis. Future research could explore inequitable pain and symptom management and investigate risk of adverse medication-related events. [ABSTRACT FROM AUTHOR]- Published
- 2022
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14. Patient- And Provider-Level Predictors of Survival Among Patients With Metastatic Renal Cell Carcinoma Initiating Oral Anticancer Agents.
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Spees, Lisa P., Dinan, Michaela A., Jackson, Bradford E., Baggett, Christopher D., Wilson, Lauren E., Greiner, Melissa A., Kaye, Deborah R., Tian Zhang, George, Daniel J., Scales, Charles D., Pritchard, Jessica E., Leapman, Michael, Gross, Cary P., and Wheeler, Stephanie B.
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RENAL cell carcinoma ,RENAL cancer treatment ,THERAPEUTIC use of antineoplastic agents ,RACIAL minorities - Abstract
Oral anticancer agents (OAAs) could improve survival and reduce disparities for medically underserved patients. We evaluated characteristics associated with mortality among a population-based multi-payer cohort of metastatic renal cell carcinoma (mRCC) patients who initiated OAAs. Frailty, de novo metastatic diagnosis, and Medicare were associated with mortality. These real-world data underscore the importance of access to high-quality care for resource-limited patients. Purpose: In an era of rapid expansion of FDA approvals for oral anticancer agents (OAAs), it is important to understand the factors associated with survival among real-world populations, which include groups not well-represented in pivotal clinical trials of OAAs, such as the elderly, racial minorities, and medically complex patients. Our objective was to evaluate patient- and provider-level characteristics' associations with mortality among a multi-payer cohort of metastatic renal cell carcinoma (mRCC) patients who initiated OAAs. Methods: This retrospective cohort study was conducted using data from the North Carolina state cancer registry linked to multi-payer claims data for the years 2004 to 2015. Provider data were obtained from North Carolina Health Professions Data System and the National Plan & Provider Enumeration System. Included patients were individuals with mRCC who initiated an OAA and survived =90 days after beginning treatment. We estimated hazard ratios (HR) and corresponding 95% confidence limits (CL) using Cox hazard models for associations between patient demographics, patient clinical characteristics, provider-level factors, and 2-year all-cause mortality. Results: The cohort included 207 patients with mRCC who received OAAs. In multivariable models, clinical variables such as frailty (HR: 1.36, 95% CL: 1.11-1.67) and de novo metastatic diagnosis (HR: 2.63, 95%CL: 1.67-4.16) were associated with higher all-cause mortality. Additionally, patients solely on Medicare had higher adjusted all-cause mortality compared with patients with any private insurance (HR: 2.35, 95% CL: 1.32-4.18). No provider-level covariates investigated were associated with all-cause mortality. Conclusions: Within a real-world population of mRCC patients taking OAAs, survival differed based on patient characteristics. In an era of rapid expansion of FDA approvals for OAAs, these real-world data underscore the continued importance of access to high-quality care, particularly for medically complex patients with limited resources. [ABSTRACT FROM AUTHOR]
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- 2022
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15. Testis Cancer Care in North Carolina: Implications for Real-World Evidence and Cancer Surveillance.
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McMahon, Stephen, Xi Zhou, Baggett, Christopher D., Bjurlin, Marc A., Chen, Ronald C., Riggs, Stephen B., Litwin, Mark S., Milowsky, Matthew I., Wallen, Eric M., and Hung-Jui Tan
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TESTICULAR cancer ,CANCER patient care ,SEMINOMA ,BIOMARKERS ,CANCER chemotherapy - Abstract
Testis cancer care requires fastidious adherence to clinical guidelines, especially for those pursuing active surveillance. However, quality remains largely unknown. Using linked NC Cancer Registry-insurance claims data, we assessed whether patients received recommended evaluation and monitoring. Among 487 men diagnosed between 2003 and 2013, 18.9% had a complete evaluation and even fewer of those on active surveillance received the recommended monitoring. Introduction: Contemporary testis cancer management requires fastidious adherence to clinical guidelines and care principles, especially for those pursuing active surveillance (AS). However, real-world testis cancer care remains largely undescribed. Accordingly, we sought to assess the rigor of evaluation and monitoring among men with testis cancer. Patients and Methods: Using North Carolina Central Cancer Registry data linked to insurance claims, we selected adult males diagnosed with primary testis cancer from 2003 to 2013. After identifying demographics, care setting, histology, stage, and index management, we evaluated the receipt of tumor markers, imaging, and clinic visits during initial evaluation and subsequent monitoring with respect to contemporaneous clinical guidelines. Care patterns were compared using chi-squared testing and multivariable logistic regression. Results: Of 2526 men with primary testis cancer, we assembled a cohort of 487 with seminoma (59.3%) or nonseminoma (40.7%), losing most to a lack of insurance or continuous coverage. The cohort was predominantly white (92.4%) and had stage I disease (87.9%). Overall, 18.9% had complete tumor markers, staging imaging, and visits with 2 relevant specialists as recommended during their initial evaluation. For subsequent monitoring, 17.5% of patients with seminoma on active surveillance met minimal thresholds for recommended testing and follow-up during the first year vs. 21.9% and 34.9% of patients with seminoma treated with adjuvant radiation and chemotherapy, respectively. For nonseminoma, 10.1% of men on active surveillance met the minimal thresholds for recommended monitoring compared with 60.4% and 62.0% of those treated with surgery and chemotherapy, respectively. Recommended monitoring also differed by academic vs. community setting and receipt of recommended evaluation (P < .05). Conclusions: From real-world data, the evaluation and monitoring of patients with testis cancer appears substandard. Ongoing data and quality gaps highlight potential challenges with generating real-world evidence and ensuring adequate surveillance in this population. [ABSTRACT FROM AUTHOR]
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- 2022
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16. Validity of breast cancer surgery treatment information in a state-based cancer registry.
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Roberson, Mya L., Nichols, Hazel B., Wheeler, Stephanie B., Reeder-Hayes, Katherine E., Olshan, Andrew F., Baggett, Christopher D., and Robinson, Whitney R.
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BREAST cancer surgery ,CANCER treatment ,INSURANCE claims ,INSURANCE ,BREAST surgery ,TUMOR classification - Abstract
Purpose: Surgery is an important part of early stage breast cancer treatment that affects overall survival. Many studies of surgical treatment of breast cancer rely on data sources that condition on continuous insurance coverage or treatment at specified facilities and thus under-sample populations especially affected by cancer care inequities including the uninsured and rural populations. Statewide cancer registries contain data on first course of cancer treatment for all patients diagnosed with cancer but the accuracy of these data are uncertain. Methods: Patients diagnosed with stage I–III breast cancer between 2003 and 2016 were identified using the North Carolina Central Cancer Registry and linked to Medicaid, Medicare, and private insurance claims. We calculated the sensitivity, specificity, positive predictive value, negative predictive value, and Kappa statistics for receipt of surgery and type of surgery (breast conserving surgery or mastectomy) using the insurance claims as the presumed gold standard. Analyses were stratified by race, insurance type, and rurality. Results: Of 26,819 patients who met eligibility criteria, 23,125 were identified as having surgery in both the claims and registry for a sensitivity of 97.9% (95% CI 97.8%, 98.1%). There was also strong agreement for surgery type between the cancer registry and the insurance claims (Kappa: 0.91). Registry treatment data validity was lower for Medicaid insured patients than for Medicare and commercially insured patients. Conclusions: Cancer registry treatment data reliably identified receipt and type of breast cancer surgery. Cancer registries are an important source of data for understanding cancer care in underrepresented populations. [ABSTRACT FROM AUTHOR]
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- 2022
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17. Trends in the Number and Type of Tobacco Product Retailers, United States, 2000-2017.
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Golden, Shelley D, Baggett, Christopher D, Kuo, Tzy-Mey, Kong, Amanda Y, Delamater, Paul L, Tao, Vivian Qingzi, and Ribisl, Kurt M
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Introduction: Tobacco product retailers provide access to tobacco products and exposure to tobacco marketing. Without a national tobacco retailer licensing system in the United States, there are no estimates of national trends in tobacco retailer numbers and store type over time.Methods: We developed a protocol to identify likely tobacco retailers across the United States between 2000 and 2017 using industry codes and retailer names in the annual National Establishment Time Series (NETS) database. We calculated annual counts of tobacco retailers in seven store-type categories and annual numbers of tobacco retailers that opened and closed.Results: We estimate that there were 317 492 tobacco product retailers in 2000; the number grew to 412 536 in 2009 before falling to 356 074 in 2017, for a net 12% increase overall. Gas/convenience stores and grocery stores accounted for more than two thirds of all retailers. On average, new openings accounted for 8.0% of the total retailers, whereas 7.3% of retailers closed or stopped selling tobacco each year, with stronger market volatility following the Great Recession. Since 2011, there was a disproportionate reduction in tobacco-selling pharmacies and an increase in both tobacco-specialty shops and tobacco-selling discount stores.Conclusions: During two decades when smoking declined, tobacco retailer availability increased in the United States. The economic climate, corporate and public policies, and new tobacco products may all contribute to trends in tobacco retailer availability. State and local jurisdictions considering tobacco retailer policies may find retailer trend information useful for forecasting or evaluating potential policy impacts.Implications: This study provides historic data tracking tobacco retailers in the United States between 2000 and 2017, documenting trends that unfolded as the general economic market contracted and grew, with greater regulation of the tobacco retailer environment. These data provide a context for better understanding future changes in the tobacco retailer market. In addition, the protocol established in this study could be applied in any US-based location without tobacco retailer licensing to allow identification of stores and tracking of trends. [ABSTRACT FROM AUTHOR]- Published
- 2022
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18. Patterns and Predictors of Oral Anticancer Agent Use in Diverse Patients With Metastatic Renal Cell Carcinoma.
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Wheeler, Stephanie B., Spees, Lisa P., Jackson, Bradford E., Baggett, Christopher D., Wilson, Lauren E., Greiner, Melissa A., Kaye, Deborah R., Tian Zhang, George, Daniel, Scales Jr., Charles D., Pritchard, Jessica E., and Dinan, Michaela A.
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THERAPEUTIC use of antineoplastic agents ,RENAL cell carcinoma ,ORAL drug administration ,METASTASIS ,RETROSPECTIVE studies ,FISHER exact test ,MANN Whitney U Test ,DRUG prescribing ,DESCRIPTIVE statistics ,CHI-squared test ,PHYSICIAN practice patterns ,DATA analysis software ,LONGITUDINAL method - Abstract
PURPOSE Availability of targeted oral anticancer agents (OAAs) has transformed care for patients with metastatic renal cell carcinoma (mRCC). Our objective was to identify patterns and predictors of OAA use within 12 months after mRCC was detected to understand real-world adoption of OAAs. METHODS We used a novel, North Carolina cancer registry-linked multipayer claims data resource to examine patterns of use of five oral therapies among patients with mRCC diagnosed in 2006-2015, with claims through 2016. Patients were required to have 12 months of continuous enrollment before metastatic index date. Log-Poisson models estimated unadjusted and adjusted risk ratios (RRs) for associations between patient characteristics and OAA use. In sensitivity analyses, we used a competing risk framework to estimate adjusted risk differences in OAA use. RESULTS Our population-based study of 713 patients demonstrated low (37%) OAA use during the first year after metastatic index date among both publicly and privately insured patients, with shifting patterns of use consistent with regulatory approvals over time. Compared with patients age 18-49 years, patients age 70-74 years were half likely to use OAAs (95% confidence limit [CL], 0.34 to 0.78) and patients age 801 years were 71% less likely to use OAAs (95% CL, 0.17 to 0.50). Patients with two comorbidities (RR, 0.73; 95% CL, 0.55 to 0.98) and those with 31 comorbidities (RR, 0.68; 95% CL, 0.50 to 0.91) were less likely to receive OAA than those without comorbidities. Patients with higher frailty also had lower OAA utilization (RR, 0.67; 95% CL, 0.52 to 0.85). CONCLUSION These findings suggest a need to better understand the system-level and provider-level drivers of OAA underuse, as well as OAA adherence and associated survival. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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- View/download PDF
19. Predictors of Chronic Opioid Use: A Population-Level Analysis of North Carolina Cancer Survivors Using Multi-Payer Claims.
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Check, Devon K, Baggett, Christopher D, Kim, KyungSu, Roberts, Andrew W, Roberts, Megan C, Robinson, Timothy, Oeffinger, Kevin C, and Dinan, Michaela A
- Subjects
CANCER pain ,CANCER survivors ,SUBSTANCE abuse ,DIAGNOSIS ,POISSON regression ,OPIOIDS ,RESEARCH ,RETROSPECTIVE studies ,EVALUATION research ,COMPARATIVE studies ,RESEARCH funding ,TUMORS ,OPIOID analgesics - Abstract
Background: No population-based studies have examined chronic opioid use among cancer survivors who are diverse with respect to diagnosis, age group, and insurance status.Methods: We conducted a retrospective cohort study using North Carolina cancer registry data linked with claims from public and private insurance (2006-2016). We included adults with nonmetastatic cancer who had no prior chronic opioid use (n = 38 366). We used modified Poisson regression to assess the adjusted relative risk of chronic opioid use in survivorship (>90-day continuous supply of opioids in the 13-24 months following diagnosis) associated with patient characteristics.Results: Only 3.0% of cancer survivors in our cohort used opioids chronically in survivorship. Predictors included younger age (adjusted risk ratio [aRR] 50-59 vs 60-69 = 1.23, 95% confidence interval [CI] = 1.05 to 1.43), baseline depression (aRR = 1.22, 95% CI = 1.06 to 1.41) or substance use (aRR = 1.43, 95% CI = 1.15 to 1.78) and Medicaid (aRR vs private = 1.93, 95% CI = 1.56 to 2.40). Survivors who used opioids intermittently (vs not at all) before diagnosis were twice as likely to use opioids chronically in survivorship (aRR = 2.62, 95% CI = 2.28 to 3.02). Those who used opioids chronically (vs intermittently or not at all) during active treatment had a nearly 17-fold increased likelihood of chronic use in survivorship (aRR = 16.65, 95% CI = 14.30 to 19.40).Conclusions: Younger and low-income survivors, those with baseline depression or substance use, and those who require chronic opioid therapy during treatment are at increased risk for chronic opioid use in survivorship. Our findings point to opportunities to improve assessment of psychosocial histories and to engage patients in shared decision-making around long-term pain management, when chronic opioid therapy is required during treatment. [ABSTRACT FROM AUTHOR]- Published
- 2021
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20. Association of surgical interval and survival among hospital and non-hospital based patients with melanoma in North Carolina.
- Author
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Adamson, Adewole S., Jackson, Bradford E., Baggett, Christopher D., Thomas, Nancy E., and Pignone, Michael P.
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MELANOMA ,SURGICAL excision ,OVERALL survival ,HEALTH insurance claims ,DIAGNOSIS ,MELANOMA diagnosis - Abstract
Surgical excision is important for melanoma treatment. Delays in surgical excision after diagnosis of melanoma have been linked to decreased survival in hospital-based cohorts. This study was aimed at quantifying the association between the timeliness of surgical excision and overall survival in patients diagnosed with melanoma in hospital- and non-hospital-based settings, using a retrospective cohort study of patients with stage 0–III melanoma and using data linked between the North Carolina Central Cancer Registry to Medicare, Medicaid, and private health insurance plan claims across the state. We identified 6,496 patients diagnosed between 2004 and 2012 with follow-up through 2017. We categorized the time from diagnostic biopsy to surgical excision as < 6 weeks after diagnosis, 6 weeks to 90 days after diagnosis, and > 90 days after melanoma diagnosis. Multivariable Cox regression was used to estimate differences in survival probabilities. Five-year overall survival was lower for those with time to surgery over 90 days (78.6%) compared with those with less than 6 weeks (86%). This difference appeared greater for patients with Stage 1 melanoma. This study was retrospective, included one state, and could not assess melanoma specific mortality. Surgical timeliness may have an effect on overall survival in patients with melanoma. Timely surgery should be encouraged. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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- View/download PDF
21. Provider‐ and patient‐level predictors of oral anticancer agent initiation and adherence in patients with metastatic renal cell carcinoma.
- Author
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Spees, Lisa P., Wheeler, Stephanie B., Jackson, Bradford E., Baggett, Christopher D., Wilson, Lauren E., Greiner, Melissa A., Kaye, Deborah R., Zhang, Tian, George, Daniel, Scales, Charles D., Pritchard, Jessica E., Leapman, Michael, Gross, Cary P., and Dinan, Michaela A.
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PATIENT compliance ,RENAL cell carcinoma ,ANTINEOPLASTIC agents ,MEDICAL personnel ,CONFIDENCE intervals ,RURAL nursing ,SORAFENIB ,ONCOLOGISTS - Abstract
Background: Improving oral anticancer agent (OAA) initiation and adherence is the important quality‐of‐care issues, particularly since one fourth of anticancer agents being developed will be administered orally. Our objective was to identify provider‐ and patient‐level characteristics associated with OAA initiation and adherence among individuals with metastatic renal cell carcinoma (mRCC). Methods: We used state cancer registry data linked to multi‐payer claims data to identify patients with mRCC diagnosed in 2004–2015. Provider data were obtained from North Carolina Health Professions Data System and the National Plan & Provider Enumeration System. We estimated risk ratios (RRs) and corresponding 95% confidence limits (CLs) using modified Poisson regression to evaluate factors associated with OAA initiation and adherence. Results: Among the 207 (out of 687) patients who initiated an OAA following mRCC diagnosis and survived 90 days, median proportion of days covered was 0.91. Patients with a modal provider specializing in hematology/medical oncology were much more likely to initiate OAAs than those seen by other specialties. Additionally, patients with a female provider were more likely to initiate OAAs than those with a male provider. Compared to patients treated by providers practicing in both urban and rural areas, patients with providers practicing solely in urban areas were more likely to initiate OAAs, after controlling for patient‐level factors (RR = 1.37; 95% CL: 1.09–1.73). Medicare patients were less likely to be adherent than those with private insurance (RR = 0.61; 95% CL: 0.42–0.87). Conclusions: Our results suggest that provider‐ and patient‐level factors influence OAA initiation in patients with mRCC but only insurance type was associated with adherence. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
22. Real-World Utilization of Oral Anticancer Agents and Related Costs in Older Adults with Metastatic Renal Cell Carcinoma in the United States.
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Wilson, Lauren E., Spees, Lisa, Pritchard, Jessica, Greiner, Melissa A., Scales Jr, Charles D., Baggett, Christopher D., Kaye, Deborah, George, Daniel J., Tian Zhang, Wheeler, Stephanie B., and Dinan, Michaela A.
- Published
- 2021
- Full Text
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23. Material and psychological financial hardship related to employment disruption among female adolescent and young adult cancer survivors.
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Meernik, Clare, Kirchhoff, Anne C., Anderson, Chelsea, Edwards, Teresa P., Deal, Allison M., Baggett, Christopher D., Kushi, Lawrence H., Chao, Chun R., and Nichols, Hazel B.
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FINANCIAL stress ,YOUNG adults ,TEENAGE girls ,CANCER survivors ,CANCER patients ,BACK injuries - Abstract
Background: The importance of addressing adverse financial effects of cancer among adolescents and young adults (AYAs) is paramount as survival improves. In the current study, the authors examined whether cancer‐related employment disruption was associated with financial hardship among female AYA cancer survivors in North Carolina and California. Methods: AYA cancer survivors identified through the North Carolina Central Cancer Registry and the Kaiser Permanente Northern/Southern California tumor registries responded to an online survey. Disrupted employment was defined as reducing hours, taking temporary leave, or stopping work completely because of cancer. Financial hardship was defined as material conditions or psychological distress related to cancer. Descriptive statistics and chi‐square tests were used to characterize the invited sample and survey respondents. Marginal structural binomial regression models were used to estimate prevalence differences (PDs) and 95% confidence intervals (95% CIs). Results: Among 1328 women employed at the time of their diagnosis, women were a median age of 34 years at the time of diagnosis and 7 years from diagnosis at the time of the survey and approximately 32% experienced employment disruption. A substantial percentage reported financial hardship related to material conditions (27%) or psychological distress (50%). In adjusted analyses, women with disrupted employment had a 17% higher burden of material conditions (95% CI, 10%‐23%) and an 8% higher burden of psychological distress (95% CI, 1%‐16%) compared with those without disruption. Conclusions: Financial hardship related to employment disruption among female AYA cancer survivors can be substantial. Interventions to promote job maintenance and transition back to the workforce after treatment, as well as improved workplace accommodations and benefits, present an opportunity to improve cancer survivorship. Female adolescent and young adult cancer survivors can be particularly vulnerable to adverse employment and financial outcomes. Those with cancer‐related employment disruption report increased financial hardship related to material conditions and psychological distress. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
24. Changes in chronic medication adherence, costs, and health care use after a cancer diagnosis among low‐income patients and the role of patient‐centered medical homes.
- Author
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Spees, Lisa P., Wheeler, Stephanie B., Zhou, Xi, Amin, Krutika B., Baggett, Christopher D., Lund, Jennifer L., Urick, Benjamin Y., Farley, Joel F., Reeder‐Hayes, Katherine E., and Trogdon, Justin G.
- Subjects
PATIENT compliance ,PATIENT-centered medical homes ,MEDICAL care use ,CANCER diagnosis ,MEDICAID - Abstract
Background: Approximately 40% of patients with cancer also have another chronic medical condition. Patient‐centered medical homes (PCMHs) have improved outcomes among patients with multiple chronic comorbidities. The authors first evaluated the impact of a cancer diagnosis on chronic medication adherence among patients with Medicaid coverage and, second, whether PCMHs influenced outcomes among patients with cancer. Methods: Using linked 2004 to 2010 North Carolina cancer registry and claims data, the authors included Medicaid enrollees who were diagnosed with breast, colorectal, or lung cancer who had hyperlipidemia, hypertension, and/or diabetes mellitus. Using difference‐in‐difference methods, the authors examined adherence to chronic disease medications as measured by the change in the percentage of days covered over time among patients with and without cancer. The authors then further evaluated whether PCMH enrollment modified the observed differences between those patients with and without cancer using a differences‐in‐differences‐in‐differences approach. The authors examined changes in health care expenditures and use as secondary outcomes. Results: Patients newly diagnosed with cancer who had hyperlipidemia experienced a 7‐percentage point to 11‐percentage point decrease in the percentage of days covered compared with patients without cancer. Patients with cancer also experienced significant increases in medical expenditures and hospitalizations compared with noncancer controls. Changes in medication adherence over time between patients with and without cancer were not determined to be statistically significantly different by PCMH status. Some PCMH patients with cancer experienced smaller increases in expenditures (diabetes) and emergency department use (hyperlipidemia) but larger increases in their inpatient hospitalization rates (hypertension) compared with non‐PCMH patients with cancer relative to patients without cancer. Conclusions: PCMHs were not found to be associated with improvements in chronic disease medication adherence, but were associated with lower costs and emergency department visits among some low‐income patients with cancer. The authors report that low‐income patients with cancer who have chronic conditions have worse adherence to chronic medications, higher costs, and higher health care use around the time of their cancer diagnosis. Changes in chronic medication adherence for patients with cancer compared with patients without cancer appear to be no different for those in patient‐centered medical homes. Future studies should examine a variety of approaches that can help to mitigate the multidimensional burden of cancer in low‐income populations. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
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25. Medical costs associated with metastatic breast cancer in younger, midlife, and older women.
- Author
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Trogdon, Justin G., Baggett, Christopher D., Gogate, Anagha, Reeder-Hayes, Katherine E., Rotter, Jason, Zhou, Xi, Ekwueme, Donatus U., Fairley, Temeika L., and Wheeler, Stephanie B.
- Abstract
Purpose: We estimated average medical costs due to metastatic breast cancer (mBC) among younger (aged 18–44), midlife (aged 45–64), and older women (aged 65 and older) by phase of care: initial, continuing, and terminal. Methods: We used 2003–2014 North Carolina cancer registry data linked with administrative claims from public and private payers. We developed a claims-based algorithm to identify breast cancer patients who progressed to metastatic disease. We matched breast cancer patients (mBC and earlier stage) to non-cancer patients on age group, county of residence, and insurance plan. Outcomes were average monthly medical expenditures and expected medical expenditures by phase. We used regression to estimate excess costs attributed to mBC as the difference in mean payments between patients with mBC (N = 4806) and patients with each earlier-stage breast cancer (stage 1, stage 2, stage 3, and unknown stage; N = 21,772) and non-cancer controls (N = 109,631) by treatment phase and age group. Results: Adjusted monthly costs for women with mBC were significantly higher than for women with earlier-stage breast cancer and non-cancer controls for all age groups and treatment phases except the initial treatment among women with stage 3 breast cancer at diagnosis. The largest expected total costs were for women aged 18–44 with mBC during the continuing phase ($209,961 95% Confidence Interval $165,736–254,186). Conclusions: We found substantial excess costs for mBC among younger women and during the continuing and terminal phases of survivorship. It is important to assess whether this care is high value for these women. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
26. Patient/Provider Discussions About Clinical Trial Participation and Reasons for Nonparticipation Among Adolescent and Young Adult Women with Cancer.
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Anderson, Chelsea, Smitherman, Andrew B., Meernik, Clare, Edwards, Teresa P., Deal, Allison M., Cannizzaro, Nancy, Baggett, Christopher D., Chao, Chun, and Nichols, Hazel B.
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BREAST tumor diagnosis ,LYMPHOMA diagnosis ,MELANOMA diagnosis ,CANCER patient psychology ,CLINICAL trials ,COMMUNICATION ,DISCUSSION ,REPORTING of diseases ,FEMALE reproductive organ tumors ,INTERNET ,LONGITUDINAL method ,PHYSICIAN-patient relations ,ONCOLOGY ,SURVEYS ,THYROID gland tumors ,PSYCHOLOGY of women ,PATIENT participation ,HUMAN research subjects ,ADVERSE health care events - Abstract
Purpose: Clinical trial enrollment is low among adolescents and young adults (AYAs) with cancer and may contribute to inferior survival gains in recent years in this population compared with other age groups. We investigated clinical trial participation among AYA women with cancer, and examined whether patients discussed clinical trial participation with their doctor and reasons for nonparticipation. Methods: Women with a diagnosis of breast cancer, thyroid cancer, melanoma, lymphoma, or gynecologic cancer at ages 15–39 years during 2004–2016 were identified from the North Carolina Central Cancer Registry and the Kaiser Permanente Southern California health system. During 2018–2019, a total of 1264 eligible women completed an online survey (response = 13%), which examined survivorship issues among AYAs. Results: Overall, 5% of participants reported that they had participated in a clinical trial. Most women reported that they had not discussed clinical trial participation with a medical provider (76%) and that they did not know whether a relevant trial was available for their cancer (73%). Among those who knew that a trial was available but did not participate, the most commonly reported reasons for nonparticipation included concerns about side effects of the treatment in the trial and concerns that the treatment had not been sufficiently tested. Conclusion: Only a small proportion of AYA women with cancer in our cohort reported discussing a clinical trial with a provider or knowing whether a relevant trial was available. Our findings point to opportunities to improve patient/provider communication to increase clinical trial enrollment among AYAs with cancer. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
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27. Feasibility of the Tritrac R3D Accelerometer to Estimate Energy Expenditure in Youth.
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McMurray, Robert G., Baggett, Christopher D., Harrell, Joanne S., Pennell, Michael L., and Bangdiwala, Shrikant I.
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PHYSICAL anthropology ,BODY size ,ANTHROPOMETRY ,ANALYSIS of variance ,STATISTICS ,ECONOMIC forecasting - Abstract
The purpose of this study was to determine whether an equation could he developed to predict energy expenditure from Tritrac output, body mass, stature, and age in youth. The participants were 308 young people. 8 18 yrs of age, similarly dispersed across ages and genders. Stature (cm) and body mass (kg) were measured. Participants completed 10 mm of nine activities, ranging from light to vigorous intensity. Simultaneous measures of Tritrac vector magnitude counts (VMAG) and oxygen uptake (Cosmed K4h²) were obtained. Mixed model analysis using VMAG, sex, age, stature, and body mass fit well, and all variables were significant (p < .012). The model concordance correlation was R
c = .812; standard deviation = 305 mI/mm. A slightly less complex model was also adequate: VO2 (mI/min) (0.32 VMAG) + (6.97 cm) + (6.19 kg) 858; standard deviation = 306 mI/min; Rc =809. These results indicate that the Tritrac R3D can he used with some success to assess energy expendi- ture in 8- to 1 8-yr olds. [ABSTRACT FROM AUTHOR]- Published
- 2004
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- View/download PDF
28. An updated systematic review of the cost-effectiveness of therapies for metastatic breast cancer.
- Author
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Gogate, Anagha, Rotter, Jason S., Trogdon, Justin G., Meng, Ke, Baggett, Christopher D., Reeder-Hayes, Katherine E., and Wheeler, Stephanie B.
- Abstract
Purpose: The goal of this systematic review is to provide an update to the review by Pouwels et al. by conducting a systematic review and an assessment of the reporting quality of the economic analyses conducted since 2014.Methods: This systematic review identified published articles focused on metastatic breast cancer treatment using the Medline/PubMed and Scopus databases and the following search criteria: (((cost effectiveness[MeSH Terms]) OR (cost effectiveness) OR (cost-effectiveness) OR (cost utility) OR (cost-utility) OR (economic evaluation)) AND (("metastatic breast cancer") OR ("advanced breast cancer"))). The reporting quality of the included articles was evaluated using the International Society of Pharmacoeconomics and Outcomes Research (ISPOR) Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist.Results: Of the 256 identified articles, 67 of the articles were published after October 2014 when the prior systematic review stopped its assessment (Pouwels et al. in Breast Cancer Res Treat 165:485-498, 2017). From the 67 articles, we narrowed down to include 17 original health economic analyses specific to metastatic or advanced breast cancer. These articles were diverse with respect to methods employed and interventions included.Conclusion: Although each of the articles contributed their own analytic strengths and limitations, the overall quality of the studies was moderate. The review demonstrated that the vast majority of the reported incremental cost-effectiveness ratios exceeded the typically employed willingness to pay thresholds used in each country of analysis. Only three of the reviewed articles studied chemotherapies rather than treatments targeting either HER2 or hormone receptors, demonstrating a gap in the literature. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
29. Influence of provider factors and race on uptake of breast cancer gene expression profiling.
- Author
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Reeder‐Hayes, Katherine E., Wheeler, Stephanie B., Baggett, Christopher D., Zhou, Xi, Meng, Ke, Roberts, Megan C., Carey, Lisa A., Meyer, Anne‐Marie, Reeder-Hayes, Katherine E, and Meyer, Anne-Marie
- Subjects
GENE expression profiling ,GENETICS of breast cancer ,BREAST cancer diagnosis ,BREAST cancer treatment ,DISEASE incidence - Abstract
Background: Gene expression profiling (GEP) has been rapidly adopted for early breast cancer and can aid in chemotherapy decision making. Study results regarding racial disparities in testing are conflicting, and may reflect different care settings. To the authors' knowledge, data regarding the influence of provider factors on testing are scarce.Methods: The authors used a statewide, multipayer, insurance claims database linked to cancer registry records to examine the impact of race and provider characteristics on GEP uptake in a cohort of patients newly diagnosed with breast cancer between 2005 and 2012. Incidence proportion models were used to examine the adjusted likelihood of testing. Models were stratified by lymph node status (N0 vs N1).Results: Among 11,958 eligible patients, 23% of black and 26% of non-Hispanic white patients received GEP. Among patients with N0 disease, black individuals were 16% less likely to receive testing after adjustment for clinical factors and the provider's specialty and volume of patients with breast cancer (95% confidence interval, 0.77-0.93). Adjustment for provider characteristics did not attenuate the effect of race on testing. Patients of middle-volume providers were more likely to be tested compared with those with either high-volume or low-volume providers, whereas patients seeing a medical oncologist were more likely to be tested compared with those whose only providers were from surgical specialties.Conclusions: Provider volume and specialty were found to be significant predictors of GEP use, but did not explain racial disparities in testing. Further research concerning the key contributors to lagging test use among black women is needed to optimize the equitable use of GEPs and support personalized treatment decision making for all patients. Cancer 2018;124:1743-51. © 2018 American Cancer Society. [ABSTRACT FROM AUTHOR]- Published
- 2018
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30. Association of Delays in Surgery for Melanoma With Insurance Type.
- Author
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Adamson, Adewole S., Lei Zhou, Baggett, Christopher D., Thomas, Nancy E., Meyer, Anne-Marie, and Zhou, Lei
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- 2017
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31. Do Overweight Girls Overreport Physical Activity?
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McMurray, Robert G., Ward, Dianne S., Elder, John P., Lytle, Leslie A., Strikmiller, Patricia K., Baggett, Christopher D., and Young, Deborah R.
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TEENAGE girls ,PHYSICAL education ,OBESITY ,WOMEN'S health services ,PHYSICAL fitness ,OVERWEIGHT women ,ACCELEROMETERS ,HEALTH planning ,PUBLIC health research - Abstract
Objective: To determine if overweight adolescent girls are more likely to overreport physical activity compared to normal-weight girls. Methods: Participation in physical activities and perceived intensity of activities were assessed from the previous day physical activity recall (PDPAR) in 1021 girls aged 11-14 years old (37% overweight). Daily minutes of moderate to vigorous physical activity (MVPA) were measured using accelerometery. Results: Girls in the "at-risk for overweight" and "overweight" categories had 17.7% and 19.4% fewer minutes of MVPA per block reported on the PDPAR compared to normal-weight girls (P<0.05). Conclusions: Overweight adolescent girls tend to overreport their total amount of physical activity. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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32. Physical Activity as a Predictor of Body Composition in American Indian Children**.
- Author
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Stevens, June, Suchindran, Chirayath, Ring, Kim, Baggett, Christopher D., Jobe, Jared B., Story, Mary, Thompson, Janice, Going, Scott B., and Caballero, Benjamin
- Published
- 2004
- Full Text
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