Poisson regression estimates of relative risk of death from lung cancer, non-malignant respiratory disease (NMRD), and all causes in relation to cumulative exposure
| Certified cause of death | Cumulative exposure | Deaths observed (expected) | Adjusted relative risk (95% CI) | p value | |
|---|---|---|---|---|---|
| All analyses exclude deaths and person-years in the first 10 years of follow up. | |||||
| Respiratory cancer | 1: | 0- (8.6) | 5 (4.3) | 1.00 | |
| 2: | 11.7- (16.7) | 9 (4.1) | 1.74 (0.58 to 5.23) | ||
| 3: | 25.2- (53.2) | 10 (4.1) | 1.85 (0.63 to 5.45) | ||
| 4: | 113.8- (393.8) | 16 (4.8) | 3.20 (1.16 to 8.84) | ||
| Linear model (per 100 f/ml.y) | 0.36 (0.03 to 1.20) | 0.02 | |||
| NMRD | 1: | 0- (8.6) | 5 (3.5) | 1.00 | |
| 2: | 11.7- (16.7) | 13 (3.7) | 2.53 (0.88 to 7.24) | ||
| 3: | 25.2- (53.2) | 14 (3.8) | 2.62 (0.93 to 7.27) | ||
| 4: | 113.8- (393.8) | 19 (4.1) | 3.11 (1.15 to 8.44) | ||
| Linear model (per 100 f/ml.y) | 0.38 (0.12 to 0.96) | 0.0001 | |||
| All deaths | 1: | 0- (98.6) | 55 (45.6) | 1.00 | |
| 2: | 11.7- (16.7) | 59 (47.1) | 0.97 (0.66 to 1.41) | ||
| 3: | 25.2- (53.2) | 66 (48.0) | 1.08 (0.75 to 1.56) | ||
| 4: | 113.8- (393.8) | 90 (53.7) | 1.42 (1.01 to 2.01) | ||
| Linear model (per 100 f/ml.y) | 0.14 (0.05 to 0.26) | 0.0003 | |||