Influenza Vaccination Coverage, Adults 65 Years and Older

  • Influenza vaccination coverage among Medicare fee-for-service beneficiaries aged ≥65 years is assessed using data files from the Medicare Fee-For-Service (FFS) administrative claims data managed by the Centers for Medicare & Medicaid Services (CMS).
  • Weekly influenza vaccination coverage estimates were calculated using Kaplan-Meier survival analysis, based on beneficiaries enrolled as of August 1, 2019 and followed through May 31, 2020 for 2019-20 flu season and enrolled as of Aug 1, 2020 and followed through November 30, 2020 for the 2020-2021 flu season.
  • Additional information about data source is availableexternal icon.
  • Figure 5. Weekly Cumulative Influenza Vaccination Coverage, Medicare Fee-For-Service Beneficiaries aged ≥65 years, United States, 2019-20 Compared with 2020-21*, Data Source: Centers for Medicare & Medicaid Services Chronic Conditions Warehouse, Estimates are based on data released by CMS on April 12, 2021. – View and Download Data
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*Overall includes persons categorized as ‘Unknown’ for race/ethnicity category. Percent vaccinated estimates are expected to increase as more claims are processed. Weekly influenza vaccination coverage estimates were calculated using Kaplan-Meier survival analysis, based on beneficiaries enrolled as of August 1, 2019 and followed through May 31, 2020 for 2019-20 flu season and enrolled as of Aug 1, 2020 and followed through November 30, 2020 for the 2020-2021 flu season.