Faculty of Public Health and Allied Health Sciences, Praboromarajchanok Institute, Thailand.
Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Thailand.
Res Social Adm Pharm. 2022 Nov;18(11):3911-3919. doi: 10.1016/j.sapharm.2022.06.001. Epub 2022 Jun 5.
The COVID-19 vaccine is recognized as a novel tool in the battle against COVID-19. Recently, there were several types of vaccines that have a different effectiveness and safety profile. Understanding the vaccine acceptance and willingness to pay (WTP) are essential to develop a strategic plan to increase the rate of COVID-19 vaccination uptake.
To assess the acceptance and WTP for a COVID-19 Vaccine in Thailand using the contingent valuation method (CVM). Additionally, to identify the factors that affect the acceptance and the amount of WTP for a COVID-19 Vaccine.
We conducted a cross-sectional survey using a payment card approach with open-ended questions during September 2021. Three hypothetical COVID-19 vaccines (Vaccines A, B, and C) in two scenarios were employed. Data were collected from 752 people. Multivariate logistic regression was performed to assess the predictors of vaccine acceptance. Multiple linear regression was used to analyze factors associated with the maximum amount WTP for a vaccine.
Of 742 respondents, the highest acceptance was vaccine C (70.71%), followed by B (17.72%) and A (11.57%). Similarly, 53.87%, 41.44%, and 36.21% of the respondents expressed WTP for vaccine C, B and A, respectively. The maximum amount WTP for vaccine C was US$46, followed by B (US$35) and A (US$32). Factors affecting acceptance included monthly salary, region of residence, education, perceived risk of COVID-19 infection, knowledge and attitude about the COVID-19 vaccine. In addition, monthly salary, region of residence, education and knowledge on COVID-19 vaccine were related to maximum amount WTP.
Acceptance and WTP depends on vaccine characteristics. Educational campaigns should be implemented to improve people's awareness, knowledge, and attitude towards COVID-19 vaccines to increase the vaccines' acceptance. To increase the rate of vaccination, the Thai government needs to allow freedom of choice on vaccines, while considering effectiveness and safety issues.
COVID-19 疫苗被认为是对抗 COVID-19 的新工具。最近，有几种疫苗具有不同的有效性和安全性。了解疫苗的可接受性和支付意愿（WTP）对于制定增加 COVID-19 疫苗接种率的战略计划至关重要。
使用意愿调查法（CVM）评估泰国对 COVID-19 疫苗的接受程度和 WTP。此外，确定影响 COVID-19 疫苗接受度和 WTP 金额的因素。
我们在 2021 年 9 月使用带有开放式问题的支付卡方法进行了横断面调查。采用了三种假设的 COVID-19 疫苗（疫苗 A、B 和 C）在两种情况下的调查。从 752 人收集了数据。使用多变量逻辑回归评估疫苗接种接受度的预测因素。使用多元线性回归分析与疫苗 WTP 最大金额相关的因素。
在 742 名受访者中，对疫苗 C 的接受度最高（70.71%），其次是 B（17.72%）和 A（11.57%）。同样，53.87%、41.44%和 36.21%的受访者分别表示愿意为疫苗 C、B 和 A 支付。对疫苗 C 的最大 WTP 金额为 46 美元，其次是 B（35 美元）和 A（32 美元）。影响接受度的因素包括月收入、居住地区、教育程度、对 COVID-19 感染的感知风险、对 COVID-19 疫苗的知识和态度。此外，月收入、居住地区、教育程度和 COVID-19 疫苗知识与最大 WTP 金额有关。
接受度和 WTP 取决于疫苗的特点。应开展教育宣传活动，提高人们对 COVID-19 疫苗的认识、知识和态度，以提高疫苗的接受度。为了提高接种率，泰国政府需要允许疫苗自由选择，同时考虑有效性和安全性问题。
