Fig. 7From: The long-term and short-term effects of ambient air pollutants on sleep characteristics in the Chinese population: big data analysis from real world by sleep records of consumer wearable devicesa–g Stratified analysis 2—Effect of long-term pollutant exposure on sleep parameters. Use the method of calculating the average value of the first data set of each subject. Data are β (95% CI). β indicates partial regression coefficient. Estimates were associated with per 1-interquartile range increase in concentration of each pollutant. Adjusted for age, sex, BMI, city development level, altitude, season, and the type of night. *p < 0.05. CI, confidence intervals; CO, carbon monoxide; NO2, nitrogen dioxide; O3, ozone; PM2.5, particulate matter with aerodynamic diameter ≤ 2.5μm; PM10, particulate matter with aerodynamic diameter ≤ 10 μm; SO2, sulfur dioxide; WASO, wake after sleep onsetBack to article page