Financial disparities in prescription drug use between elderly and nonelderly Americans.

This study examines cross-sectional disparities in the financial burden of prescription drug use among U.S. elderly and nonelderly adult populations, using data from the 1998 Medical Expenditure Panel Survey. Out-of-pocket spending for prescriptions, copayment rates, and the proportion of family income spent on prescription drugs were examined to compare elderly people with working-age adults. Even after utilization or need was adjusted for, financial disparities were still observed between elderly and nonelderly adult populations. In particular, low-income elderly people were worse off than were nonelderly adults in the same poverty class and their elderly peers in other poverty classes.