Indoor solid fuel use for cooking and the risk of incidental non-fatal cardiovascular disease among middle-aged and elderly Chinese adults: a prospective cohort study

ObjectivesThe harm of indoor air pollution to health has gradually attracted attention, but the effect of indoor air pollution from burning solid fuels on incidental non-fatal cardiovascular disease (CVD) is not well understood. Under these circumstances, this study examined the association between...

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Bibliographic Details
Published in:BMJ open 2022-05, Vol.12 (5), p.e054170-e054170
Main Authors: Ji, Haoqiang, Chen, Qian, Wu, Ruiheng, Xu, Jia, Chen, Xu, Du, Liang, Chen, Yunting, Pan, Yuanping, Duan, Yuxin, Sun, Meng, Zhou, Ling
Format: Article
Language:English
Subjects:
Air pollution
Body mass index
Cardiac Epidemiology
Cardiovascular disease
Coal
Cohort analysis
Cooking
Crop residues
Developing countries
Diabetes
Epidemiology
Health behavior
Health policy
Heart
Hypertension
Indoor air quality
LDCs
Longitudinal studies
Metabolic disorders
Middle age
Mortality
Natural gas
Nitrogen dioxide
Outdoor air quality
Pollutants
Public Health
Self report
Sociodemographics
Stroke
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Summary:ObjectivesThe harm of indoor air pollution to health has gradually attracted attention, but the effect of indoor air pollution from burning solid fuels on incidental non-fatal cardiovascular disease (CVD) is not well understood. Under these circumstances, this study examined the association between solid fuel use and incidental non-fatal CVD.DesignThe prospective cohort study was conducted in 2011, 2013, 2015 and 2018.SettingThe nationally representative survey was conducted in 28 provinces of China.ParticipantsThis study included 13 544 middle-aged and elderly adults without CVD in the baseline survey, and they were followed for 7 years.Outcome measuresFirst incidence of non-fatal CVD (heart disease or stroke).MethodsBased on longitudinal data, Cox proportional hazards models were used to assess the effects of solid fuel use and persistent use on incidental CVD events.ResultsDuring the 7-year follow-up period, there were 1533 non-fatal CVD cases. A total of 7310 (54%) participants used solid fuel for cooking at the baseline survey, and 2998 (41%) users continued to use solid fuel. Solid fuel use was associated with incidental non-fatal CVD (HR: 1.18; 95% CI: 1.05 to 1.32) compared with clean fuel, and persistent solid fuel use might lead to a higher risk of incidental non-fatal CVD (HR: 1.38; 95% CI: 1.18 to 1.61) and heart disease (HR: 1.49; 95% CI: 1.24 to 1.81). In the subgroup analysis, the relationship remained significant in the female, elderly, rural and hypertensive groups. However, we found no significant interaction between these risk factors and fuel use (all p
ISSN:2044-6055
2044-6055
DOI:10.1136/bmjopen-2021-054170