Am J Prev Med

Background:Influenza is a major cause of morbidity and mortality among adults. The most effective strategy for preventing influenza is annual vaccination. However, vaccination coverage has been suboptimal among adult populations.Purpose:To assess trends in influenza vaccination among adult populations.Methods:Data from the 2010\u20132016 National Health Interview Survey were analyzed in 2018 to estimate vaccination coverage during the 2010\u201311 through 2015\u201316 seasons. Trends of vaccination in recent years were assessed. Vaccination coverage by race/ethnicity within each group was assessed. Multivariable logistic regression and predictive marginal models were conducted to assess factors associated with vaccination, and interactions between race/ethnicity and other demographic and access-to-care characteristics were assessed.Results:Vaccination coverage among adults aged 6518 years increased from 38.3% in the 2010\u201311 to 43.4% in the 2015\u201316 season, with an average increase of 1.3 percentage points annually. From the 2010\u201311 through 2015\u201316 seasons, coverage was stable for adults aged 6565 years, and changed by 120.1\u20139.9 percentage points for all other subgroups examined. Coverage in 2015\u201316 was 70.4% for adults aged 6565 years, 46.4% for those aged 50\u201364 years, and 32.3% for those aged 18\u201349 years; 47.9% for persons aged 18\u201364 years with high-risk conditions; 64.8% for HCP; and 50.3% for pregnant women. Among adults aged 6518 years for the 2015\u201316 season, coverage was significantly lower among non-Hispanic blacks and Hispanics compared with non-Hispanic whites.Conclusions:Overall, influenza vaccination coverage among adults aged 6518 years increased during 2010\u20132016 but still remained below the national target of 70%. Vaccination coverage varied by age, risk status, race/ethnicity, and HCP and pregnancy status. Targeted efforts are needed to improve coverage and reduce disparities.CC999999/ImCDC/Intramural CDC HHS/United States2020-04-01T00:00:00Z31473066PMC67550347469vault:3516