RR and AR of breast cancer by age at diagnosis of Hodgkin disease
| Age at diagnosis . | Person-years . | O . | E . | RR . | (95% CI) . | AR . |
|---|---|---|---|---|---|---|
| Younger than 15 | 604 | 5 | 0.04 | 111.8 | (36.2, 261.0) | 82.1 |
| 15-19 | 1498 | 9 | 0.28 | 32.0 | (14.6, 60.7) | 58.2 |
| 20-25 | 1781 | 10 | 0.60 | 16.6 | (8.0, 30.6) | 52.8 |
| 26-29 | 1232 | 8 | 0.96 | 8.4 | (3.6, 16.5) | 57.2 |
| 30-35 | 950 | 4 | 1.07 | 3.7 | (1.0, 9.5) | 30.8 |
| 36-40 | 355 | 2 | 0.60 | 3.4 | (0.4, 12.1) | 39.6 |
| Older than 40 | 699 | 1 | 2.23 | 0.4 | (0.01, 2.5) | − 17.7 |
| Age at diagnosis . | Person-years . | O . | E . | RR . | (95% CI) . | AR . |
|---|---|---|---|---|---|---|
| Younger than 15 | 604 | 5 | 0.04 | 111.8 | (36.2, 261.0) | 82.1 |
| 15-19 | 1498 | 9 | 0.28 | 32.0 | (14.6, 60.7) | 58.2 |
| 20-25 | 1781 | 10 | 0.60 | 16.6 | (8.0, 30.6) | 52.8 |
| 26-29 | 1232 | 8 | 0.96 | 8.4 | (3.6, 16.5) | 57.2 |
| 30-35 | 950 | 4 | 1.07 | 3.7 | (1.0, 9.5) | 30.8 |
| 36-40 | 355 | 2 | 0.60 | 3.4 | (0.4, 12.1) | 39.6 |
| Older than 40 | 699 | 1 | 2.23 | 0.4 | (0.01, 2.5) | − 17.7 |
O indicates observed; E, expected; RR, relative risk; CI, confidence interval; AR, absolute excess risk.