Table 2 Adjusted HRs (95% CIs) from Cox proportional hazards models for the linear association between SARDs and per interquartile increment in PM2.5 or ozone exposure.a, adjusting for different covariates, Quebec, 2000–2013
Covariates included in the model | PM2.5 | Ozone |
|---|---|---|
Age and sex | 1.25 (1.16–1.34) | 0.96 (0.82–1.00) |
Age, sex, and deprivation index | 1.22 (1.13–1.31) | 0.99 (0.94–1.03) |
Age, sex, deprivation index, and urban–rural residence | 1.22 (1.11–1.35) | 0.96 (0.89–1.02) |
Age, sex, deprivation index, urban–rural residence, and smokingb | 1.22 (1.10–1.34) | - |
Age, deprivation index, and urban–rural residence (male subgroup) | 1.29 (1.08–1.55) | 1.05 (0.95–1.15) |
Age, deprivation index, and urban–rural residence (female subgroup) | 1.20 (1.06–1.35) | 0.97 (0.98–1.00) |