Associations between urinary monohydroxy polycyclic aromatic hydrocarbons metabolites and Framingham Risk Score in Chinese adults with low lung function
Abstract Previous studies have reported an association of exposure to polycyclic aromatic hydrocarbons (PAHs) with lung function decline or cardiovascular diseases, or reduced lung function with 10-year cardiovascular (CV) risk. We analyzed risk factors for the 10-year Framingham CV risk using multiple logistic regression, and examined the mediational effect of reduced lung function on the association between exposure to PAHs and FRS using the post-exploratory structural equation modeling. Participants (n = 2268) were drawn from the Wuhan residents at baseline from the Wuhan-Zhuhai Cohort Study. They completed the physical examination, measurements of lung function and urinary monohydroxylated-PAHs (OH-PAHs). In all individuals, we found a dose-response relationship of PAHs exposure, forced expiratory volume in 1s (FEV1) or forced vital capacity (FVC) with the 10-year CV risk. The proportions of FEV1 and FVC mediation effects in association of PAH exposure with the10-year CV risk were 35% and 24%, respectively. The findings indicated that PAHs exposure or reduced lung function increased the 10-year CV risk. Impaired lung function may partly contribute to increase in the 10-year CV risk regarding exposure to PAHs. Highlights Urinary OH-PAHs levels was positively associated with 10-year CV risk. A dose response relationship of low lung function with10-year CV risk was observed. Low lung function might mediate association of PAHs exposure with 10-year CV risk.
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