Table 5.
Classical standardized mortality ratio calculations and causal mortality ratio calculations
| Classical SMR calculation | CMR calculation | ||||
|---|---|---|---|---|---|
|
|
|||||
| Outcome | Observed | Expected | SMR | Expected | CMR |
| All-cause mortality | 4211 | 3419 | 1.23 | 3623 | 1.16 |
| Lung Cancer | 705 | 332 | 2.12 | 351 | 2.01 |
| Extrathoracic Airway Cancer | 59 | 41.8 | 1.41 | 43.7 | 1.35 |
| Kidney Cancer | 41 | 41 | 1.00 | 43 | 0.95 |
| Liver Cancer | 48 | 29 | 1.63 | 31 | 1.54 |
| Stomach Cancer | 102 | 81 | 1.27 | 85 | 1.20 |
| Hematopoietic Cancer | 58 | 53 | 1.10 | 56 | 1.03 |
Obs = Observed, Exp = Expected, SMR = Standardized Mortality Ratio, CMR = Causal Mortality Ratio, CI = Confidence Interval