Figure 4
Wave of immigration by PM2.5 exposure among all immigrants, hazard ratios (95% CI) for non-accidental mortality
Data table for Figure 4
Non-accidental | Point estimate | 95% Wald confidence limits - low | 95% Wald confidence limits - high |
---|---|---|---|
at PM=7.5 | |||
1 vs. 2 | 0.9747 | 0.9533 | 0.9980 |
1 vs. 3 | 0.9294 | 0.9001 | 0.9597 |
1 vs. 4 | 0.7880 | 0.7587 | 0.8190 |
at PM=10 | |||
1 vs. 2 | 0.9542 | 0.9225 | 0.9862 |
1 vs. 3 | 0.9852 | 0.9434 | 1.0288 |
1 vs. 4 | 0.8210 | 0.7812 | 0.8628 |
at PM=12.5 | |||
1 vs. 2 | 0.9337 | 0.8850 | 0.9852 |
1 vs. 3 | 1.0449 | 0.9766 | 1.1186 |
1 vs. 4 | 0.8554 | 0.7930 | 0.9225 |
Notes: CI: confidence interval. PM: particulate matter. Group 1 (reference group; >30 years): established immigrants (pre-1970); Group 2 (21 to 30 years): semi-established immigrants (1971 to 1980); Group 3 (11 to 20 years): recent immigrants (1981 to 1990); Group 4 (≤10 years): very recent immigrants (1991 to 2000). Hazard ratios are stratified by sex and by five-year age groups, and adjusted for place of birth; age at immigration; visible minority; marital status; education; income quintile; employment status; occupational class; community size; urban form; airshed; and neighbourhood instability, deprivation, dependency and ethnic concentration. Source: 2001 Canadian Census Health and Environment Cohort. |
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