Factors Associated with Intention to Resign among Medical Residents during the COVID-19 Pandemic in Japan: A Cross-sectional Study

Introduction: The coronavirus disease 2019 (COVID-19) pandemic has significantly affected healthcare workers' mental health worldwide, leading to the intention to resign. Japanese medical residents were no exception to the impact of COVID-19. This study aimed to illustrate how the COVID-19 pandemic affected medical residents' intention to resign. Methods: A cross-sectional study was conducted for Postgraduate Year (PGY)1-5 medical residents in Japan using an internet survey from March 11 to March 18, 2021. During this survey, the Japanese government declared a second-time state of emergency on January 7, 2021, and all restrictions were expanded nationwide until March 21, 2021. Medical residents were categorized into two groups (intention to resign group [IR] or no intention to resign group [NIR]) based on their intention to resign. Multivariate logistic regression analysis was conducted to elucidate the risk factors for the intention to resign. Results: 354 medical residents were enrolled in this study (response rate: 40.2%). Ninety-two medical residents (26.0 %) were categorized into IR and 262 (74.0%) into NIR. According to multivariate logistic regression analysis, those who did not have mental support at their hospital had 2.95 times greater chance of intending to resign (Adjusted odds ratio [AOR] = 2.95, 95% confidence interval (CI) [1.42-6.15]). Medical residents who engaged in patients with COVID-19 (AOR = 2.13, 95% Cl [1.08-4.18]) and PGY5 (AOR = 3.38, 95% Cl [1.51-7.56]) had a higher likelihood of intending to resign among residents in all PGY. Conclusions: One in four medical residents intended to resign during the COVID-19 pandemic. Particularly, PGY5 and medical residents who treated patients with COVID-19 were found at risk of having the intention to resign. At times of crisis, such as the COVID-19 epidemic, establishing a mental health support system that targets high-risk residents is critical.