Yan Elsie, Lai Daniel W L, Ng Haze K L, Lee Vincent W P
Department of Applied Social Sciences, The Hong Kong Polytechnic University, Hong Kong.
Faculty of Social Sciences, Hong Kong Baptist University, Hong Kong.
SSM Popul Health. 2022 Jun;18:101130. doi: 10.1016/j.ssmph.2022.101130. Epub 2022 May 20.
Identifying predictors of COVID-19 vaccine uptake decisions is central to the development of evidence-based strategies for promoting vaccination. This longitudinal study investigated the link between previous willingness to vaccinate and vaccine uptake decision, and examined potential predictors of vaccine uptake in Hong Kong.
A longitudinal telephone survey study was conducted using a population-based sample of Chinese adult residents (≥18 years) in Hong Kong. Data were collected at two time points: T1 (December 2020-January 2021) and T2 (June-July 2021). Primary outcome was vaccine uptake status; whilst independent variables and covariates included socio-demographic factors, COVID-19 related experiences, health beliefs, and perception, as well as vaccine related perceptions.
Among the 1,003 participants, 23.7% had received a COVID-19 vaccine. Previous willingness to vaccinate did not predict vaccine uptake at later stage. Vaccine uptake by known others ( = 8.00), trust in authorities ( = 1.53), acceptability of non-pharmaceutical preventive measures ( = 2.96), and first-hand experience of COVID-19 ( = 1.32) were significant predictors of vaccine uptake after adjusting for confounding factors.
Future strategies to promote vaccination may focus on building public trust in government and healthcare professional, and encouraging vaccinated individuals to share their vaccine uptake status via social networking.
确定新冠疫苗接种决策的预测因素是制定促进疫苗接种的循证策略的核心。这项纵向研究调查了先前的接种意愿与疫苗接种决策之间的联系，并考察了香港疫苗接种的潜在预测因素。
采用基于人群的香港成年中国居民（≥18岁）样本进行纵向电话调查研究。在两个时间点收集数据：T1（2020年12月至2021年1月）和T2（2021年6月至7月）。主要结果是疫苗接种状况；自变量和协变量包括社会人口因素、与新冠病毒相关的经历、健康信念和认知，以及与疫苗相关的认知。
在1003名参与者中，23.7%的人接种了新冠疫苗。先前的接种意愿并不能预测后期的疫苗接种情况。在调整混杂因素后，他人的疫苗接种情况（β = 8.00）、对当局的信任（β = 1.53）、非药物预防措施的可接受性（β = 2.96）以及新冠病毒的第一手经验（β = 1.32）是疫苗接种的显著预测因素。
未来促进疫苗接种的策略可能侧重于建立公众对政府和医疗保健专业人员的信任，并鼓励已接种疫苗的个人通过社交网络分享他们的疫苗接种状况。
