Scatter Plot from Scientific Research

Associations between sleep parameters and long-term exposures to ambient air pollutants. 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 <= 2.5 μm; PM10, particulate matter with aerodynamic diameter <= 10 μm; SO2, sulfur dioxide; WASO, wake after sleep onset

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