First breast cancer characteristic | 5-year cumulative incidence (95% CIs)a |
---|---|
Overall | 1.31% (1.26 to 1.37%) |
Age at diagnosis, years | |
< 40 | 1.54% (1.27 to 1.85%) |
40 to < 50 | 1.15% (1.03 to 1.28%) |
50 to < 60 | 1.24% (1.13 to 1.35%) |
60 to < 70 | 1.33% (1.22 to 1.45%) |
≥ 70 | 1.47% (1.35 to 1.60%) |
Stage at diagnosis | |
I | 1.32% (1.24 to 1.40%) |
II | 1.17% (1.08 to 1.26%) |
III | 1.73% (1.55 to 1.93%) |
ER status | |
Positive | 1.19% (1.13 to 1.26%) |
Negative | 1.81% (1.66 to 1.98%) |
ER status and age at diagnosis | |
ER-positive | |
< 50 years | 1.01% (0.90 to 1.14%) |
≥ 50 years | 1.24% (1.17 to 1.32%) |
ER-negative | |
< 50 years | 1.89% (1.61 to 2.21%) |
≥ 50 years | 1.78% (1.60 to 1.97%) |
HER2-statusb | |
Positive | 1.35% (1.05 to 1.71%) |
Negative | 1.33% (1.21 to 1.45%) |
Breast cancer subtypeb,c | |
HR+/HER2+ | 1.39% (1.02 to 1.84%) |
HR+/HER2− | 1.27% (1.15 to 1.41%) |
HR−/HER2+ | 1.27% (0.80 to 1.94%) |
HR-/HER2- (triple negative) | 1.71% (1.38 to 2.09%) |