Abstract
BACKGROUND: Against the backdrop of accelerating global aging, China's population aged 60 and above has exceeded 18% of the total population, making the quality of life of older adults a focal point of societal concern. As a core factor influencing the quality of home-based elderly care, the living environment encompasses natural, social, material, and spiritual dimensions, directly impacting older adults' physical and mental health as well as subjective well-being. Existing research has acknowledged the influence of living environments on older adults' subjective well-being but lacks in-depth analysis of environmental disparities across different regions and cultural contexts. METHODS: Drawing on environmental adaptation theory, socio-emotional selectivity theory, and social support theory, this study utilized 4,298 valid samples from the 2020 China Family Panel Studies (CFPS). A linear regression model was constructed to analyze how differences in living environments-classified into physical, social, and spiritual dimensions-affect older adults' subjective well-being. Heterogeneity tests were conducted through urban-rural subgroup analyses, and robustness was verified using a winsorization method. RESULTS: The results show that Indoor air purification, public facility adequacy, surrounding environmental quality, and security all significantly and positively influenced subjective well-being. Neighborhood relationships, community belonging, economic status, and trust in neighbors were positively correlated with subjective well-being. Social support mitigated loneliness, acting as a mediating factor, with a more pronounced effect on older adults living alone.Satisfaction with interpersonal relationships, life confidence, and future expectations positively predicted subjective well-being, while family book collections had no significant impact.Rural older adults were more sensitive to economic security, whereas urban counterparts prioritized quality-of-life factors. Age and educational background showed divergent effects between urban and rural groups. CONCLUSIONS: Disparities in living environments are critical determinants of older adults' subjective well-being. Enhancing physical infrastructure, strengthening community support, and enriching spiritual life can significantly boost their happiness.