Weekly Cumulative Influenza Vaccination Coverage, by Flu Season and Race and Ethnicity, Medicare Fee-For-Service Beneficiaries aged 65 years, United States, Data Source: Centers for Medicare & Medicaid Services Chronic Conditions Warehouse

Principal Investigator(s):  View help for Principal Investigator(s) United States Department of Health and Human Services. Centers for Disease Control and Prevention; Flu Vaccinations

Version:  View help for Version V1

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Weekly Cumulative Influenza Vaccination Coverage, by Flu Season and Race and Ethnicity, Medicare Fee-For-Service Beneficiaries aged 65 years, United States, Data Source: Centers for Medicare & Medicaid Services Chronic Conditions Warehouse 0

Project Citation: 

United States Department of Health and Human Services. Centers for Disease Control and Prevention, and Flu Vaccinations. Weekly Cumulative Influenza Vaccination Coverage, by Flu Season and Race and Ethnicity, Medicare Fee-For-Service Beneficiaries aged 65 years, United States, Data Source: Centers for Medicare & Medicaid Services Chronic Conditions Warehouse. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2026-01-09. https://doi.org/10.3886/E242809V1

Project Description

Project Title:  View help for Project Title Weekly Cumulative Influenza Vaccination Coverage, by Flu Season and Race and Ethnicity, Medicare Fee-For-Service Beneficiaries aged 65 years, United States, Data Source: Centers for Medicare & Medicaid Services Chronic Conditions Warehouse
Summary:  View help for Summary Influenza vaccination coverage among Medicare fee-for-service beneficiaries 65 years and older 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 at the start of each flu season (example: Aug 1, 2021) until the end of the current season reporting time period or the end of May the following year for prior seasons (example: May 28, 2022). Influenza vaccines received since August 1 of each season, among adults who were 65 years or older as of the end of the first year of the season (e.g., December 31, 2025 for the 202526 season), were included. Additional information aboutdata source is available here: https://www2.ccwdata.org/web/guest/home. Read less
Original Distribution URL:  View help for Original Distribution URL https://data.cdc.gov/Flu-Vaccinations/Weekly-Cumulative-Influenza-Vaccination-Coverage-b/agz7-4mvg/about_data

Scope of Project

Subject Terms:  View help for Subject Terms flu vaccination; nis; vsd; iqvia; iis
Collection Notes:  View help for Collection Notes (Downloaded 1/8/2026)


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V1 [2026-01-09]

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