LUNG FUNCTION IS ASSOCIATED WITH COOKING COAL SMOKE AMONG PRIMARY SCHOOL CHILDREN IN WUHAN, CHINA

摘要

We examined associations between lung function and multiple household risk factors among 463 primary school children from Wuhan China. We used factor analysis to develop new uncorrelated "factor" variables. We used linear regression models to examine associations between the factor variables and lung function parameters. Three factors were derived from twenty-one original variables: Factor 1 "cooking coal smoke", Factor 2 "heating coal smoke", and Factor 3 "ventilation". We found that cooking coal smoke was significantly and negatively associated with forced vital capacity (FVC, β = -238 ml, p ＜ 0.01), and with forced expiratory volume at one second (FEV1, β= -248 ml, p ＜ 0.0 1) with respect to an increase in the Q-spread of the factor score. The other two factors were not significantly associated with either of the long function parameters. Our study suggests that independent effects of exposure to indoor air pollution may exist for the children in this study.