Factors associated with COVID-19 vaccination intent in Singapore, Australia and Hong Kong. Issue 21 (9th May 2022)

• Record Type: Journal Article
• Authors: Shah, Shimoni; Gui, Hao; Chua, Pearleen Ee Yong; Tan, Jing-Yu (Benjamin); Suen, Lorna Kwai-ping; Chan, Sally Wai-chi; Pang, Junxiong
• Is Part Of: Vaccine. Volume 40:Issue 21(2022)
• Page Start: 2949
• Page End: 2959
• Publication Date: 2022-05-09
• Subjects: COVID-19 -- Perceived risk -- Perception -- Vaccine intent; Vaccines -- Periodicals; 615.372
• DOI: 10.1016/j.vaccine.2022.03.062
• Languages: English
• ISSNs: 0264-410X

Abstract

Graphical abstract: Highlights: Representative survey data from Singapore, Hong Kong, Australia from Jan – Feb 2021. Current smokers, Asians, living with vulnerable population increases vaccine intent. Being diet and hygiene conscious increases vaccine intent. People's trust in health system efficacy has a predilection for vaccination. Self-efficacy mediates amid perceived susceptibility & barrier predicting vaccine intent. Abstract: Background: COVID-19 pandemic has caused significant morbidity and mortality globally. As vaccines have been developed under expedited conditions, their safety and efficacy are being questioned by some populations leading to vaccine hesitancy, resulting in delayed vaccine uptake and herd immunity. This study aims to adopt a combination of Health Belief Model and other independent risk factors associated with high vaccine acceptance. Methods: An anonymized cross-sectional survey was distributed between 15 January and 3 February 2021 across Singapore, Hong Kong and Australia among adult respondents through a certified online panel. Exploratory factor analysis and confirmatory factor analysis were carried out to assess perception constructs followed by multivariate regression modelling to assess factors associated with high vaccine acceptance against SARS_CoV-2. Results: A total of 3, 133 anonymised participants from Singapore (n = 1, 009), Australia (n = 1, 118) and Hong Kong (n = 1, 006) completed the survey. While age and gender were not significantly associated, Asian ethnicity, current smokers and self-efficacy were significant associated factors of increased vaccine acceptance. While specific practices like taking micronutrients more frequently, cleaning and disinfecting their house more often were positively associated with increased vaccine acceptance, seeking medical help for COVID-19 symptoms like loss of smell/taste and overall COVID-19 knowledge score were negatively associated. Increased likelihood of vaccine acceptance was seen among those that obtained COVID-19 information less frequently and used digital media or non-health-related sources like influencers as a source of information. Among the eight perception constructs, perceived susceptibility and perceived response efficacy were positively associated, while perceived barriers were negatively associated with high vaccine acceptance. Conclusion: While demographic parameters have weak association with vaccine acceptance, perceptions and practices parameters can help to better understand and influence vaccine acceptance. Study findings should provide guidance on the risk communication strategy to enhance vaccine acceptance for vaccination and boosters against new SARS-CoV-2 variants.