Marriage and postpartum major depressive disorder: A systematic review and meta-analysis of cohort studies.

Many studies have explored the relationships between demographic variables and postpartum major depressive disorder. However, there is no clear conclusion on the impact of different marital statuses and quality on postpartum major depressive disorder. This systematic review and meta-analysis examined the combined effects of different marital status and quality on postpartum major depressive disorder with cohort studies.

Influence of physical activity on problematic smartphone use in medical students: mediating effects of social anxiety and the moderating role of gender.

Objective: This study investigates the mediating role of social anxiety in the relationship between physical activity and problematic smartphone use among college students, and examines the moderating role of gender within this model.

Methods: From April to May 2023, a survey was conducted involving 2905 undergraduate students from various medical schools in Shandong, China. Participants completed the Physical Activity Rating Scale (PARS-3), Mobile Phone Addiction Tendency Scale for College Students (MPATS), and the Social Anxiety Scale (IAS).