Coverage of influenza, pneumococcal and zoster vaccination and determinants of influenza and pneumococcal vaccination among adults with cardiovascular diseases in community

Background: Cardiovascular disease (CVD) is the leading cause of death and illness globally. Influenza, pneumococcal disease and herpes zoster infection may trigger acute cardiovascular events or cause complications among cardiac patients. Vaccination is recommended for adults with CVD. There is a gap in research evidence around determinants and uptake of influenza, pneumococcal and zoster vaccines in adults with CVD. Objective: The aim of this study is to examine the rate of the uptake of influenza, zoster and pneumococcal vaccines, factors associated with the uptake of influenza vaccine, and the perceptions of influenza and pneumococcal vaccination among people with CVD in the community. Method: Cross-sectional survey data was analysed from three separate surveys carried out in Australia between October 2019 and September 2020 of 972 adults with CVD. We used descriptive statistics to describe data. Thematic analysis examined the reasons for taking influenza vaccine. Multivariable analysis was used to identify independent predictors of the influenza vaccine uptake and perceptions associated with the uptake of influenza and pneumococcal vaccines. Results: Out of 972 participants, a total of 661 (68 %) people said they had received influenza vaccine in the last 12 months; 361 (37 %) had ever received pneumococcal vaccine; 196 (20 %) had ever received zoster vaccine. Among 661 participants who said they received influenza vaccine within the 12 months prior to the study, 543 (82 %) participants received it from doctors or general practitioners (GPs) offices. Age 65 and older, being born in Australia, being employed or retired and having comorbidity were positive predictors of influenza vaccination. Doctors' recommendations to take the vaccine and awareness of free vaccines positively predicted influenza and pneumococcal vaccine uptake. Conclusion: The uptake of recommended pneumococcal and zoster vaccines is low in people with CVD. Doctors' recommendations, targeted health promotion programs in general practice, and easy access to vaccination may optimise vaccination uptake in patients with CVD.