Recently, the Journal of the American Medical Association published a cohort follow-up study conducted in China. The use of coal and wood (solid fuel) for indoor air pollution caused by cooking and heating will significantly increase coronary heart disease and stroke. Death risk.
Despite the known fact that solid fuel combustion produces harmful health PM2.5, before this study, there was a large-scale population prospective cohort study that correlated with indoor air pollution and death risk (especially cardiovascular and cerebrovascular disease death risk). evidence.
Researchers from Oxford University, Huazhong University of Science and Technology, Chinese Academy of Medical Sciences, and Peking University conducted an average of 7 years of follow-up visits to more than 270,000 residents in China's five rural areas that used only solid fuels. The researchers found that after adjusting for factors such as age, gender, socioeconomic status, smoking, drinking, diet, physical activity, and obesity, they often use solid fuels compared to individuals who use mostly clean fuel (gas or electricity). In individuals with food, the risk of death from cardiovascular and cerebrovascular diseases increased by 20%. In individuals who regularly use solid-fuel heating, the risk of death from cardiovascular and cerebrovascular diseases increased by 29%. The longer you use solid fuel, the higher the risk of death. The study also found that solid fuels have a significant additive effect on smoking hazards. Individuals who smoke and use solid fuels have a 76% increased risk of death from cardiovascular and cerebrovascular diseases compared with individuals who do not smoke and use clean fuels.
The study also showed that individuals who switched from solid fuel to clean fuel and cooking had a 17% lower risk of cardiovascular and cerebrovascular disease deaths than those who continued to use solid fuel for cooking, and those who switched to cleaner fuels were at risk of death. The use of solid fuel heaters is 43% lower than the continuous use. In addition, among those individuals who used solid fuel for cooking, those with well-ventilated stoves had a 11% lower risk of death from cardiovascular and cerebrovascular diseases than those without good ventilation facilities.
Chen Yuming, a lifelong professor at Oxford University, one of the main authors of the study, said that in recent decades, the Chinese government has been promoting large-scale reforms to replace traditional stoves and use clean fuels. The study confirmed the health benefits of switching from solid fuels to clean fuels and the use of good ventilation facilities.
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