Linkage Methods and Analytic Support for NCHS-CMS Medicaid Data

• NCHS-CMS Medicaid Matching Methodology and Analytic Considerations [PDF – 2 MB]
  Contains an overview of the data sources, the methods used for linkage, descriptions of the resulting linked data files and analytic considerations.

• Match Rate Table for NCHS-CMS T-MSIS Files [PDF – 278 KB]
  Table providing NCHS-CMS Medicaid linked file sample sizes and percentage linked, by survey and age at interview.

• Sample Sizes for Restricted-Use NCHS-CMS T-MSIS Files [PDF – 315 KB]
  Tables providing sample sizes for each NCHS-CMS Medicaid linked file by NCHS survey, type of Medicaid file and Medicaid claims year.

Additional Resources:

• Chronic Conditions Warehouse (CCW) T-MSIS Analytic Files Data Dictionaries

• CCW T-MSIS Analytic Files (TAF) User Guide

• TAF Technical Documentation: Annual Demographic and Eligibility (DE) File

• TAF Technical Documentation: Claims Files
• T-MSIS Analytic Files Data Quality (DQ) Atlas (CMS)
• Research Data Assistance Center (ResDAC) at the University of Minnesota