SEER-Medicare: Outcome and Assessment Information set (OASIS)

The Home Health Outcome and Assessment Information Set (OASIS) data included information that was collected for patients who are receiving skilled home health care. Patients receiving only personal care, homemaker, or chore services are excluded. OASIS assessments are collected at admission, specified time points for the purpose of improving home health care. The assessment is performed on admission, at 60-day intervals, following interruption of home care (e.g., hospitalization), and at discharge or death. The assessment is required for all adults age 18 or over who are Medicare and Medicaid patients. The OASIS assessment collects information in a standardized format about patients’ comorbidities, physical, psychological and psychosocial functioning in addition to the living arrangement.

Patients in the SEER-Medicare data diagnosed in 2004 and later have been linked with OASIS data from 2010 and later. Cancer patients with fee-for-service and HMO coverage are included.

OASIS documentation coming soon.