Centre for Health Systems and Policy Research, The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Front Public Health. 2023 Jan 24;11:1063444. doi: 10.3389/fpubh.2023.1063444. eCollection 2023.
Vaccination remains one of the most effective ways to protect populations from COVID-19 infection, severe conditions, and death. This study aims to examine whether the gain/loss-framing of information, provision of subsidized pre-vaccination physician consultation, and cash incentives can improve COVID-19 acceptance amongst adults.
A survey experiment was conducted within a broader cross-sectional survey of people aged 18-64 years in Hong Kong, China. The participants were randomly assigned to one of the eight groups derived from full-factorial design of the three strategies with stratification by age and sex. The vaccine acceptance rate was compared between people with and without any of the strategies. The heterogeneous effects of these strategies were identified for those with different perceptions of the pandemics and vaccine in multiple logistic regressions.
The survey experiment collected 1,000 valid responses. It found that loss-framed information and provision of subsidized physician consultation to assess suitability to be vaccinated, can improve vaccine acceptance, while cash incentives did not make a difference. The improvement effect of loss-framing information and physician consultation is stronger among those with higher perceived infection risk and severity of condition, as well as unvaccinated people with lower confidence in vaccine safety.
The findings indicated that individualized loss-framing messages and equitable provision of subsidized pre-vaccination physician consultations can be incorporated in efforts to promote vaccine acceptance and vaccination roll-out speed. However, it remains inconclusive whether and how universal cash incentives may be deployed to support vaccination promotion.
接种疫苗仍然是保护人群免受 COVID-19 感染、严重疾病和死亡的最有效方法之一。本研究旨在探讨信息的得失框架、提供补贴的疫苗接种前医生咨询以及现金激励是否可以提高成年人对 COVID-19 疫苗的接受程度。
在中国香港，对 18-64 岁的人群进行了一项横断面调查，在此基础上进行了一项调查实验。参与者被随机分配到三个策略的完全因子设计的八个组之一，按年龄和性别分层。比较了有和没有任何策略的人群之间的疫苗接种率。采用多因素逻辑回归分析了这些策略对不同人群对疫情和疫苗的认知的异质性影响。
该调查实验共收集了 1000 份有效回复。结果发现，信息的损失框架和提供补贴的医生咨询以评估接种疫苗的适宜性，可以提高疫苗的接受程度，而现金激励则没有效果。对于那些认为感染风险和病情严重程度较高、对疫苗安全性信心较低且未接种疫苗的人，损失框架信息和医生咨询的改善效果更强。
研究结果表明，可以将个性化的损失框架信息和公平提供补贴的疫苗接种前医生咨询纳入促进疫苗接种接受度和疫苗接种速度的努力中。然而，现金激励是否以及如何能够支持疫苗接种推广仍存在争议。
