The effects of eliminating supplemental security income drug addiction and alcoholism eligibility on the mental health of low-income substance abusers.

On January 1, 1997, as the result of federal legislation, many low-income substance abusers lost income and healthcare benefits provided by the Supplemental Security Income (SSI) program. This study examined the effects of eliminating drug addiction and alcoholism (DAA) as qualifying impairments for SSI benefits on the mental health and mental health treatment utilization of former beneficiaries 3.5 years following the policy change. Study participants in four Northern California counties were categorized into three comparison groups based on their primary income source over the lifetime of the study. Findings indicated that overall the reported mental health status of former SSI DAA beneficiaries improved following the policy change; however, study participants who relied primarily on some other type of public assistance post-termination reported an increase in mental health treatment utilization.