The effects of catastrophic drug plan deductibles on older women's use of cardiovascular medicines: a retrospective cohort study

The role and impact of cost-sharing mechanisms for prescription drug coverage

“…2 It is possible that introducing additional deductibles in a region with an already high rate of cost-related nonadherence would make it more difficult to show statistical significance. In the other linked study, Morgan and colleagues 3 used a more stratified analysis by focusing on health status and specific diseases. They report that not having such deductibles increased the odds of filling one or more necessary antihypertensive prescriptions by 15%, which is in line with findings from another study.…”