Why the study?
Does a $10 increase in prescription copayment reduce drug adherence and increase hospitalization risk in patients with chronic heart failure?
Does a $10 increase in prescription copayment reduce drug adherence and increase hospitalization risk in patients with chronic heart failure?
Higher drug copayments for heart failure medications are associated with decreased adherence and an increased risk of heart failure hospitalization.
Raises concern for cost-sharing policies in heart failure; extends observational evidence but leaves causal effects and practice change open.
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Cole et al. (2006) studied this question.
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