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. 2022 Nov;31(11):3165-3175.
doi: 10.1007/s11136-022-03195-y. Epub 2022 Aug 7.

Physical activity attenuates the association between household air pollution and health-related quality of life in Chinese rural population: the Henan Rural Cohort Study

Caiyun Zhang #  1 , Xiaotian Liu #  1 , Ning Kang  1 , Xiaoyu Hou  1 , Wei Liao  1 , Yinghao Yuchi  1 , Zhongao Ding  1 , Bota Baheti  1 , Gaohua Chang  1 , Zhenxing Mao  1 , Wenqian Huo  2 , Jian Hou  1 , Chongjian Wang  3
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Physical activity attenuates the association between household air pollution and health-related quality of life in Chinese rural population: the Henan Rural Cohort Study

Caiyun Zhang et al. Qual Life Res. 2022 Nov.

Abstract

Background and purpose: Limited research focused on the association between household air pollution (HAP) and health-related quality of life (HRQoL). This study aimed to investigate the association of HAP with HRQoL and the effect modification of physical activity.

Method: A total of 16,761 eligible participants were derived from the Henan Rural Cohort Study. Based on structured questionnaires, HAP was assessed by fuel type, cooking duration and kitchen ventilation; HRQoL was measured with utility index and VAS score from the European Quality of Life Five Dimension Five Level Scale (EQ-5D-5L); physical activity was assessed by the International Physical Activity Questionnaire. Generalized linear models and tobit regression models were utilized to explore the relationship of HAP with HRQoL. Further sensitivity analyses were conducted using structural equation models.

Results: Compared with those who cooked with clean fuels, short-duration, or good kitchen ventilation, participants who cooked with solid fuels, long-duration, and poor ventilation had lower utility index and VAS score (All P < 0.001). The decrease in utility index for solid fuel users vs. clean fuel users were 0.06 [95%confidence interval (CI) 003, 0.08], 0.03 (95%CI 0.01, 0.04) and 0.02 (95%CI 0.01, 0.04) in low, moderate and high physical activity group, respectively, which decreased with physical activity levels (Pfor interaction < 0.05). Similar results were observed in associations of kitchen ventilation with utility index and VAS score.

Conclusion: HAP negatively associated with HRQoL in rural population, and potential intervention aimed at maintaining adequate physical activity.

Trail registration: The Henan Rural Cohort Study has been registered at Chinese Clinical Trial Register (Registration number: ChiCTR-OOC-15006699). Date of registration: 06 July, 2015. http://www.chictr.org.cn/showproj.aspx?proj=11375 .

Keywords: Effect modification; HRQoL; Household air pollution; Physical activity; Rural area.

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