Correlation between psychological stress and depressive symptoms among Japanese university students: a cross-sectional analysis.

[Purpose] Higher education students face significant environmental changes, placing them at heightened risk of developing depressive symptoms that have been exacerbated by the coronavirus infectious disease pandemic. This study examined the association between psychological stress and depressive symptoms among Japanese university students. [Participants and Methods] We conducted an online and face-to-face questionnaire survey with 145 Japanese university students studying rehabilitation sciences. Depressive symptoms and psychological stress were evaluated using the Self-rating Depression Scale and Stress Response Scale-18, respectively. [Results] Among the participants, 88 had depressive symptoms. Compared to the non-depressive symptom group, the depressive symptom group experienced higher psychological stress and comprised significantly more women and individuals with insomnia. Logistic regression analysis revealed that psychological stress and insomnia were independent predictors of depressive symptoms. [Conclusion] Psychological stress is independently associated with depressive symptoms. The correlation between insomnia, stress, and depressive symptoms requires further investigation. Future research should explore the causal relationship between psychological stress and depressive symptoms and consider the factors that may influence this relationship.