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The international generalisability of evidence for health policy: A cross country comparison of medication adherence following policy change

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  • Sinnott, Sarah-Jo
  • Whelton, Helen
  • Franklin, Jessica Myers
  • Polinski, Jennifer Milan

Abstract

Copayments for prescriptions may increase morbidity and mortality via reductions in adherence to medications. Relevant data can inform policy to minimise such unintended effects. We explored the generalisability of evidence for copayments by comparing two international copayment polices, one in Massachusetts and one in Ireland, to assess whether effects on medication adherence were comparable. We used national prescription data for public health insurance programmes in Ireland and Medicaid data in the U.S. New users of oral anti-hypertensive, anti-hyperlipidaemic and diabetic drugs were included (total n=14,259 in U.S. and n=43,843 in Ireland). We examined changes in adherence in intervention and comparator groups in each setting using segmented linear regression with generalised estimating equations.

Suggested Citation

  • Sinnott, Sarah-Jo & Whelton, Helen & Franklin, Jessica Myers & Polinski, Jennifer Milan, 2017. "The international generalisability of evidence for health policy: A cross country comparison of medication adherence following policy change," Health Policy, Elsevier, vol. 121(1), pages 27-34.
    • Handle: RePEc:eee:hepoli:v:121:y:2017:i:1:p:27-34
    DOI: 10.1016/j.healthpol.2016.10.009
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    References listed on IDEAS

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    1. Sarah-Jo Sinnott & Claire Buckley & David O′Riordan & Colin Bradley & Helen Whelton, 2013. "The Effect of Copayments for Prescriptions on Adherence to Prescription Medicines in Publicly Insured Populations; A Systematic Review and Meta-Analysis," PLOS ONE, Public Library of Science, vol. 8(5), pages 1-11, May.
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