Fig. 2: Associations of PM2.5 chemical constituents with obstructive sleep apnea outcomes over lag 0–1 days under different modeling strategies.
The panels show results for A OSA exacerbation, B apnea–hypopnea index and C oxygen saturation in the single-constituent model, the constituent–PM2.5 adjustment model, and the constituent–residual model. PM2.5 fine particulate matter, OM organic matter, BC black carbon, OSA obstructive sleep apnea. Notes: Associations were presented as percent change in the risk of OSA exacerbation, absolute change of apnea–hypopnea index and oxygen saturation per interquartile range increase in concentrations of PM2.5 total mass and its chemical constituents. Dots are the estimates, and error bars indicate 95% confidence intervals.
