Table 5. Observed mortality and standardized mortality ratios (SMR) of selected cancers, according to age at first exposure (years).
|
<25
|
25 to <35
|
⩾35
|
||||
|---|---|---|---|---|---|---|
| Cause of death | Obs | SMR | Obs | SMR | Obs | SMR |
| Oral and pharyngeal cancer | 0 | 0 | 2 | 257.1 | 5 | 262.0 |
| Stomach cancer | 2 | 131.4 | 1 | 37.6 | 12 | 144.8 |
| Colorectal cancer | 3 | 163.2 | 2 | 75.3 | 11 | 168.3 |
| Peritoneal cancer | 6 | 4183.8a | 6 | 3072.3a | 2 | 463.3 |
| Laryngeal cancer | 1 | 383.8 | 1 | 157.2 | 5 | 244.5 |
| Lung cancer | 8 | 279.5a | 25 | 408.3a | 43 | 239.9a |
| Pleural cancer | 6 | 6562.3a | 5 | 3512.6a | 12 | 3675.9a |
| Ovarian cancer | 2 | 275.6 | 2 | 337.2 | 1 | 168.5 |
| Pleural+peritoneal cancers | 12 | 5110.7a | 11 | 3258.3a | 14 | 1846.5a |
| All cancers | 40 | 203.7a | 61 | 216.8a | 121 | 176.3a |
| All causes | 96 | 184.2a | 136 | 175.1a | 313 | 149.5a |
| Total no. of subjects | 839 | 514 | 613 | |||
| Person-years | 24 269 | 14 695 | 14 060 | |||
a
85% confidence interval does not include 100.