Table 4.
Sensitivity Analyses: Hazard Ratios for Mortality of All Cancers per 10 µg/m3 of PM2.5
| Sensitivity | n | HR | 95%CI | P Value |
|---|---|---|---|---|
| Without using geospatial height in exposure estimation | 4,546 | 1.20 | 1.06, 1.36 | 0.005 |
| Time-varying annual mean exposure instead of baseline year exposure | 4,514 | 1.21 | 1.10, 1.33 | <0.001 |
| Without control of competing diseases | 4,531 | 1.21 | 1.10, 1.33 | <0.001 |
| Exclusion of subjects as potential loss to follow-up | 4,531 | 1.23 | 1.12, 1.35 | <0.001 |
| Exclusion of deaths for the first 5 years | 3,697 | 1.23 | 1.11, 1.37 | <0.001 |
| Exclusion of deaths for the first 7 years | 2,706 | 1.14 | 1.04, 1.25 | 0.015 |
| Exclusion of subjects who had moved during the following up period | 4,192 | 1.22 | 1.11, 1.35 | <0.001 |
| Exclusion of subjects who had hospitalization record in 1998-2000 | 2,687 | 1.25 | 1.12, 1.41 | <0.001 |
| Exclusion of subjects with self-reported pre-existing respiratory or cardio-metabolic diseases at baseline | 2,582 | 1.20 | 1.05, 1.37 | 0.006 |
| Adjustment for alcohol intake | ||||
| All malignant | 4,531 | 1.22 | 1.11, 1.34 | <0.001 |
| All digestive organs | 1,734 | 1.22 | 1.05, 1.42 | 0.01 |
| Random effects with adjustment of autocorrelation at planning areas (i.e. Tertiary Planning Units) | 4,531 | 1.22 | 1.11, 1.34 | <0.001 |
| Competing risks | 4,531 | 1.14 | 1.04, 1.25 | 0.007 |