Nishizawa Toshinori, Nawa Nobutoshi, Akaishi Yu, Okada Eriko, Kashimada Ayako, Fujiwara Takeo, Yamawaki Masanaga
Department of Medical Education Research and Development, Institute of Science Tokyo, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Department of Public Health, Institute of Science Tokyo, Tokyo, Japan.
BMC Med Educ. 2025 Jul 19;25(1):1086. doi: 10.1186/s12909-025-07651-4.
Grit, defined as the perseverance and passion for long-term goals, plays an essential role in academic success and resilience in the medical profession. Previous cross-sectional studies have indicated an association between higher grit and fewer depressive symptoms among medical residents. However, no longitudinal studies have examined the association between grit and later depressive symptoms during residency training. Therefore, this study explored the association between grit at the start and depressive symptoms at the end of the first-year postgraduate (PGY1) residency among Japanese medical residents.
This longitudinal study analyzed data from all first-year postgraduate residents at the Tokyo Medical and Dental University in Tokyo, Japan, from 2021 to 2023. We administered the surveys at the start and end of PGY1. We assessed grit using the Japanese version of the Short Grit Scale (Grit-S) and depressive symptoms using the Center for Epidemiologic Studies Depression Scale. We examined the association between grit at the baseline and depressive symptoms at the end of PGY1 using logistic regression analysis.
Of the 146 residents, 28 (19.2%) exhibited depressive symptoms by the end of PGY1. After adjusting for baseline depressive state, age, sex, university attended, sleeping hours, and training program, a 1-unit increase in the Grit-S score was associated with a significantly reduced likelihood of depressive symptoms (adjusted odds ratio [AOR]: 0.43; 95% confidence interval [CI]: 0.18-0.98). The crude analysis indicated that the perseverance of effort score was associated with a smaller reduction in the risk of having depressive symptoms at the end of PGY1 (AOR: 0.51; 95% CI: 0.29-0.93); however, the consistency of interest score was not (AOR: 0.56; 95% CI: 0.30-1.05).
This study demonstrated that, among Japanese medical residents, higher grit at the start of residency is significantly associated with a lower risk of depressive symptoms by the end of PGY1.
Not applicable.
毅力被定义为对长期目标的坚持不懈和热情，在学业成功以及医学职业的适应能力方面起着至关重要的作用。先前的横断面研究表明，医学住院医师中较高的毅力与较少的抑郁症状之间存在关联。然而，尚无纵向研究考察在住院医师培训期间毅力与后期抑郁症状之间的关联。因此，本研究探讨了日本医学住院医师在研究生一年级（PGY1）住院医师培训开始时的毅力与结束时的抑郁症状之间的关联。
这项纵向研究分析了2021年至2023年日本东京医科齿科大学所有研究生一年级住院医师的数据。我们在PGY1开始和结束时进行了调查。我们使用日语版简短毅力量表（Grit-S）评估毅力，使用流行病学研究中心抑郁量表评估抑郁症状。我们使用逻辑回归分析研究基线时的毅力与PGY1结束时的抑郁症状之间的关联。
在146名住院医师中，28名（19.2%）在PGY1结束时出现了抑郁症状。在对基线抑郁状态、年龄、性别、就读大学、睡眠时间和培训项目进行调整后，Grit-S得分每增加1个单位，抑郁症状的发生可能性显著降低（调整后的优势比[AOR]：0.43；95%置信区间[CI]：0.18 - 0.98）。粗略分析表明，努力坚持得分与PGY1结束时抑郁症状风险降低幅度较小有关（AOR：0.51；95% CI：0.29 - 0.93）；然而，兴趣一致性得分则不然（AOR：0.56；95% CI：0.30 - 1.05）。
本研究表明，在日本医学住院医师中，住院医师培训开始时较高的毅力与PGY1结束时较低的抑郁症状风险显著相关。
不适用。
