Abstract

BackgroundIndoor air pollution stemming from the use of solid fuels, such as biomass and coal, is a significant public health concern, especially in developing countries. Understanding the connection between indoor air quality and social participation is essential for crafting effective interventions and enhancing the well-being of these populations. This study aims to investigate the influence of indoor air pollution on social participation among middle-aged and olderly individuals in China. MethodsThis study utilized data from the China Health and Retirement Longitudinal Study (CHARLS), encompassing 17,711 samples, to investigate the link between cooking fuel type and social participation. Survival analysis Cox regression was used, complemented by logistic regression for supplementary analyses. FindingsUpon accounting for confounding factors, the analysis revealed that individuals who consistently used clean fuels and those who switched to clean fuels exhibited a significantly higher likelihood of increased social participation compared to those using solid fuels. The hazard ratios were 1.31 (95 % CI: 1.19–1.44) and 1.39 (95 % CI: 1.28–1.51), respectively. These findings remained consistent across various regression models and showed no signs of population heterogeneity. Furthermore, this study found that in the investigation of mediating effects, chronic disease did not demonstrate any mediating effect on social participation. However, the mediating effects of depression level and IADL (Instrumental Activities of Daily Living) were significant, accounting for 1.82 % and 7.35 % of the impact of clean cooking on social participation, respectively. InterpretationThis study provides compelling evidence that adopting clean cooking practices positively influences social participation among middle-aged and older individuals in China. We recommend that governments, communities, and individuals prioritize measures to enhance indoor air quality.

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