Copayment Incentive Increased Medication Use And Reduced Spending Among Indigenous Australians After 2010.

Australian health policy has prioritized efforts to close the ten-year life expectancy gap between indigenous and nonindigenous Australians, a disparity largely driven by cardiovascular disease and diabetes. Because out-of-pocket spending poses a barrier to accessing medications for chronic conditions, in 2010 the Australian government reduced or eliminated medication copayments for indigenous people with chronic disease or risk factors for chronic disease. In this quasi-experimental study we found that the copayment reductions were associated with a 39 percent relative increase in the use of medications and a 61 percent reduction in out-of-pocket spending. Among indigenous Australians who qualified for the largest copayment reductions, overall use of medications increased by 156 percent-including increases of 26-109 percent in the use of lipid-lowering, hypertension, and diabetes medications. These findings suggest that Australia's novel strategy of targeted copayment reductions improved access to prescription medications among indigenous Australians, a population with a high burden of chronic conditions and marked social disadvantage.