Linkage Methods and Analytic Support for NCHS-CMS Medicare Data

Current NCHS-CMS Medicare Linkage:

• Linked NCHS-CMS Medicare Matching Methodology and Analytic Guidance [Forthcoming]
• Match Rate Table for NCHS-CMS Medicare Files [PDF - 82 KB]
  Table providing NCHS-CMS Medicare linked file sample sizes and percentage linked, by survey and age at interview
• Sample Sizes for Restricted-Use NCHS-CMS Medicare Files [PDF - 397 KB]
  Tables providing sample sizes for each NCHS-CMS Medicare linked file by NCHS survey, type of Medicare file and Medicare claims year
• Medicare Advantage enrollment table for NCHS-CMS Medicare Files [PDF - 321 KB]
  Table providing unweighted percentage of NCHS-CMS Medicare linked sample aged 65 and over at time of interview enrolled in a Medicare Advantage plan (for at least 1 month during year)

Previous NCHS-CMS Medicare Linkages:

• Golden C, Driscoll AK, Simon AE, et al. Linkage of NCHS population health surveys to administrative records from Social Security Administration and Centers for Medicare & Medicaid Services. National Center for Health Statistics. Vital Health Stat 1(58). 2015. [PDF – 1.4 MB]

  Contains an overview of the data sources, the methods used for linkage, descriptions of the resulting linked data files, analytic guidance, and match rate tables.

Additional Resources:

• NHANES–CMS Linked Data Tutorial
• Centers for Medicare & Medicaid Services (CMS) website
• Medicare and You Handbook
• Medicare Program—General Information
• Research Data Assistance Center (ResDAC) at the University of Minnesota