Sex-specific associations between household drinking water sources and depressive symptoms in middle-aged and older Chinese populations: evidence from one 8-year nationwide cohort

BMC Public Health. 2025 Oct 9;25(1):3448. doi: 10.1186/s12889-025-24665-1. ABSTRACT BACKGROUND: Unstable access to safe drinking water may harm mental health, yet its impact by sex remains unclear. We aimed to explore sex-specific associations between household water...