AUTHOR=Jin Fenghua , Hu Yixuan TITLE=Association between living arrangements, social support, and depression among middle-aged and older adults: a mediation analysis from the CHARLS survey JOURNAL=Frontiers in Psychology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2025.1492495 DOI=10.3389/fpsyg.2025.1492495 ISSN=1664-1078