To develop a standardized framework determining the economic impact of medication nonadherence. Secondary analysis of existing literature reported cost data, aggregating cost outcome indicators. Weighted-average cost analysis performed, determining the proportional contribution to total cost. Direct costs were reported in 92% of studies and indirect costs in 4% of studies. Three most utilized cost categories were hospital (68%), primary care (18%) and pharmacy costs (72%). Average unadjusted direct costs ranged from $625 to $154,203 contributing to 88% of the total cost; adjusted medical costs ranged from $565 to $56,313 representing 96% of the total cost. The medication adherence cost estimation framework enables the comparison of costing studies, facilitating informed health policy decision-making based on consistent evidence and terminology.

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http://dx.doi.org/10.2217/cer-2018-0099DOI Listing

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