Figure 5.

Hazard of 12 specific causes per 10 μg/m³ higher annual NO₂ exposure in the main models

The solid boxes represent HRs, with the size inversely proportional to the variance of the logarithm of the HR, and the horizontal lines represent 95% CIs. All models were stratified by age-at-risk (in 1-year scale), ten study areas, and sex, and were adjusted for education, household income, smoking status, alcohol intake, cooking fuel type, heating fuel type, self-reported health status, BMI, physical activity level, temperature, and relative humidity. The models fit from the 1st to 99th percentiles of NO₂ concentration. HR=hazard ratio. NO₂=nitrogen dioxide.