Disability patterns among SSI recipients.

In December 1993, about 3.8 million persons under age 65 received Supplemental Security Income (SSI) payments because of a disability. More than half of these recipients had some form of mental disorder. In recent years, the number of disabled SSI recipients has climbed sharply. At the same time, there has been a change in the disability patterns among these recipients. The proportion of recipients with mental disorders, particularly those with psychiatric illness, is increasing steadily. Many of these recipients enter the SSI program in their youth and may stay in the program for many years. Similar increases and disability patterns in the Social Security Administration's Disability Insurance (DI) program imply program related causes, including recent changes to the disability requirements and outreach efforts. These changing disability patterns have implications for the size and shape of future SSI caseloads.