Grandhi GR, Mszar R, Vahidy F, et al. - As influenza vaccination has shown to reduce overall morbidity, mortality, severity of infection, and hospital readmissions among individuals with atherosclerotic cardiovascular disease (ASCVD), a leading cause of death and disability in the US and worldwide, researchers sought to ascertain the prevalence of and sociodemographic differences in influenza vaccination among a nationally representative sample of individuals with ASCVD. From Pooled Medical Expenditure Panel Survey data from 2008 to 2016, they assessed 131, 881 adults; of these, 19,793 (15.7%) had ASCVD, corresponding to 22.8 million US adults annually. Influenza vaccination was lacking in overall 32.7% of these adults with ASCVD. The highest odds of lacking vaccination were observed among high-risk groups based on younger age, non-Hispanic Black race/ethnicity, low family income, lack of insurance, lower level of education, and lack of usual source of care. This suggests lack of influenza vaccination among many US adults with established atherosclerotic cardiovascular disease with significant disparities existing based on high-risk sociodemographic characteristics.