The impact of comorbidities and sociodemographic predictors on pneumococcal vaccination coverage in adults with coronary heart disease.

Coronary heart disease (CHD) increases the risk of adverse outcomes from invasive pneumococcal disease. Using the 2020 and 2021 data from the national health interview survey, we identified adults with CHD. Chi-square analysis and logistic regression were used to examine factors that influence vaccination status. There were 2675 participants aged 41 and above with CHD. Participants were predominantly white people (82.5%) and males (60.1%). The odds of receiving the pneumococcal vaccine increased with stepwise increase in comorbidities from 1 to 2 and from 2 to 3. Among individuals with ≥2 comorbidities, black people were less likely to be vaccinated compared with white people. Pneumococcal vaccine uptake among adults with CHD is determined by cumulative comorbidities and ethnicity.