Workplace vaccination opportunity against COVID-19 contributed to high perceived organizational support of employees in Japan: A prospective cohort study.

Objectives: Perceived organizational support is a broad perception by employees about the extent to which their employer values their contributions and cares about their well-being. We examined the relationship between workplace vaccination opportunities for COVID-19 provided by companies and increases and decreases in perceived organizational support, using a prospective cohort study.

Methods: This study was conducted between December 2020 and December 2021 using a self-administered questionnaire survey in Japan. In total, 18 560 people responded to the follow-up, and were included in this study. The odds ratios (ORs) for the association between company-arranged vaccination opportunities and high perceived organizational support at the follow-up for participants (a) with low perceived organizational support at the baseline (n = 4971), and (b) with high perceived organizational support at the baseline (n = 6912) were separately estimated using a multilevel logistic model.

Results: The OR of high perceived organizational support at the follow-up after low baseline levels was significantly higher in participants given a vaccination opportunity than those not given this opportunity (OR 1.49; 95% confidence interval [CI] 1.32-1.67; p < .001). The OR of high perceived organizational support at the follow-up after high baseline levels was also significantly highly in participants given a vaccination opportunity than not (OR 1.38; 95% CI 1.23-1.54; p < .001). These significant differences remained after adjusting for workplace infection control measures.

Conclusions: Employee health support provided through a workplace vaccination program can contribute to high perceived organizational support.