[Association between cooking fuel and chronic diseases among Chinese housewives from 2015 to 2017]

To analyze the association between the use of different household cooking fuels(including solid fuels and clean fuels) and hypertension, stroke, chronic obstructive pulmonary disease, and asthma among Chinese housewives.

15616 housewives aged over 18 years were selected from China Nutrition and Health Surveillance 2015-2017, and their basic information investigation, physical examination and laboratory examination were carried out. Using multiple adjustment logistic regression analysis to compare the risk of using clean fuels and solid fuels in hypertension, stroke, chronic obstructive pulmonary disease and asthma. And living areas(urban or rural) were used as stratified factors for stratified logistic regression analysis.

Among 15616 Chinese housewives, 9539(61.08%) used clean cooking fuels and 6077(38.92%) used solid cooking fuels at that time. There were significant differences in the composition of urban and rural areas, age groups, body mass index, education level, household annual income, smoking and drinking, second-hand smoke exposure level and whether to participate in physical examination within one year. After multivariable adjustment, using solid cooking fuels increased the risk of hypertension(OR=1.14, 95% CI 1.05-1.23), stroke(OR=1.44, 95% CI 1.18-1.75), chronic obstructive pulmonary disease(OR=1.20, 95% CI 1.03-1.40) and asthma(OR 1.33, 95% CI 1.09-1.63). After stratified by urban and rural areas, the result showed that using solid cooking fuels among rural housewives significantly increased the risk of the above four diseases(hypertension: OR=1.11, 95% CI 1.01-1.22; stroke: OR=1.49, 95% CI 1.17-1.91; chronic obstructive pulmonary disease: OR=1.20, 95% CI 1.00-1.42; asthma: OR=1.40, 95% CI 1.09-1.79). While in urban housewives, except that using solid cooking fuels might increase the risk of hypertension, the risk of stroke, chronic obstructive pulmonary disease and asthma has not increased significantly, but there was still an increasing tendencies(hypertension: OR=1.18, 95% CI 1.02-1.36; stroke: OR=1.37, 95% CI 0.99-1.90; chronic obstructive pulmonary disease: OR=1.20, 95% CI 0.89-1.60; asthma: OR=1.20, 95% CI 0.82-1.74).

The use of solid cooking fuels is a risk factor for Chinese housewives in hypertension, stroke, chronic obstructive pulmonary disease, and asthma, and is more significant among rural housewives.