Table 3.
Ten-year cumulative incidence of incident breast cancer, non–breast cancer-related death, and breast cancer death stratified by age*
| Outcome | No. of events | 10-year risk by age group, % (95% CI) |
||
|---|---|---|---|---|
| 66–74 y | 75–84 y | 85–94 y | ||
| Invasive breast cancer | 7583 | 4.0 (3.9 to 4.1) | 3.6 (3.5 to 3.8) | 2.7 (2.4 to 3.0) |
| DCIS | 1742 | 1.0 (0.9 to 1.0) | 0.7 (0.6 to 0.8) | 0.4 (0.3 to 0.5) |
| Death from non–breast cancer causes | 42 229 | 14.5 (14.3 to 14.8) | 35.7 (35.3 to 36.1) | 65.4 (64.3 to 66.5) |
| Death from breast cancer | 471 | 0.2 (0.2 to 0.3) | 0.29 (0.25 to 0.34) | 0.3 (0.2 to 0.4) |
*
A separate model was fit for each age group and outcome. CI = confidence interval; DCIS = ductal carcinoma in situ.