Medicaid Analytic eXtract (MAX)
MAX data is a set of person-level data files on Medicaid eligibility, service utilization, and payments in the United States of America. The MAX data are extracted from the Medicaid Statistical Information System (MSIS) and are created to support research and policy analysis. The MAX development process combines MSIS initial claims, interim claims, voids, and adjustments for a given service into final action events. MAX datasets include inpatient data, long-term care files, other services, prescription drug files, and person summary files.
Study design
Registry
Number of participants at first data collection
72,164,758 (participants as of September 2024)
Recruitment is ongoing
Age at first data collection
Varied (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1999
Primary Institutions
Centers for Medicare & Medicaid Services (CMS)
Profile paper DOI
Not available
Funders
Centers for Medicare & Medicaid Services (CMS)
Department of Health and Human Services (HHS)
Ongoing?
Yes
Data types collected
- Secondary data
- None
- None
- Existing research data
- Healthcare data
Engagement
Keywords
