Abstract
Purpose
Cancer survivors are delaying or avoiding necessary care due to costs, and medication non-adherence is an important aspect of deferred treatment. This study estimates the prevalence of cost-related medication non-adherence (CRN) by race and ethnicity and examines factors associated with CRN among cancer survivors.
Methods
Using the 2006–2013 National Health Interview Survey, we examine self-reported CRN among cancer survivors compared with cancer-free controls. Descriptive statistics and multiple logistic regression models were used to identify factors associated with CRN among cancer survivors.
Results
In a nationally representative sample of 472,542 adults, 10,998 participants reported a history of cancer and 461,544 did not. Among 10,998 cancer survivors, 1397 (12.70 %) reported CRN. Among older cancer survivors, African-Americans were 2.64 times more likely (95 % confidence interval (CI), 1.73 to 4.01) and Hispanics 2.07 times more likely (95 % CI, 1.32 to 3.24) than whites to report CRN. Among younger cancer survivors, Hispanics were 1.61 times more likely (95 % CI, 1.23 to 2.10) than whites to report CRN.
Conclusions
Significant racial and ethnic disparities in CRN were evident among cancer survivors. Older African-American and Hispanic overall survivors were more likely to report CRN in the past year compared with non-Hispanic whites.
Implications for Cancer Survivors
Given increasing prescription drug expenditure, it is important to closely monitor CRN in high-risk subgroups. Racial and ethnic minority groups at high risk for CRN should be counseled on the importance of medication adherence and offered support services to promote medication adherence. Further studies are warranted to establish effective policies and interventions in vulnerable populations.
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