COVID-19 vaccines are providing the great protection from serious illness and death from the coronavirus-2019. This study was to evaluate the factors related to decision making behavior for COVID-19 vaccination among factory workers in Navanakorn industrial estate. The 385 samples were selected by using purposive random sampling between August to October 2021. The participants were aged range between 18-59 years old by voluntary and can communicate in Thai language. The all of variable and outcomes were selected by using the online-structured questionnaire consisted of 5 parts with the IOC between 0.8-1.0. The Cronbach’s alpha coefficients was reported more than 0.90. The data analysis was used descriptive statistics and Chi-square test. The result showed that the majority of the samples had high level of knowledge on COVID-19 vaccination (93.8%). They mostly had moderate level of attitude on COVID-19 vaccination (52.2%) and high level of decisionmaking behavior for COVID-19 vaccination (60.8%). Factors which remained significantly associated with decision-making behavior for COVID-19 vaccination were education level, government vaccine allocation, knowledge and attitude on COVID-19 vaccination . The healthcare sector can use the data to plan raise awareness of decision-making behavior for COVID19 vaccination for increasing the proportion of vaccination.

Keywords : Vaccinaion; Factory Woker; Coronavirus-2019.