Standardised incidence ratios (SIR) for occurrence of colorectal cancer after a first cancer at selected sites, diagnosed between 1961 and 1995
| Men | Women | |||
|---|---|---|---|---|
| First cancer site | n | SIR (95% CI) | n | SIR (95% CI) |
| Small intestine | 14 | 3.61 (1.97, 6.05) | 10 | 3.06 (1.47, 5.62) |
| Colorectal | 265 | 0.69 (0.61, 0.77) | 151 | 0.84 (0.71, 0.98) |
| Testis | 23 | 1.25 (0.79, 1.88) | — | — |
| Cervix uteri | — | — | 127 | 1.19 (1.00, 1.42) |
| Corpus uteri | — | — | 250 | 1.18 (1.04, 1.33) |
| Ovary | — | — | 165 | 1.93 (1.65, 2.25) |
| Eye | 10 | 0.72 (0.35, 1.33) | 3 | 0.28 (0.06, 0.82) |