| Age group (in Years) | p value | |||
| 40 - 64 (%) | 65 - 74 (%) | >75 (%) | ||
| Death from breast cancer | 117 (19.6) | 35 (25.0) | 35 (35.0) | <0.001† <0.001* |
| Death from other causes | 23 (3.9) | 20 (14.3) | 26 (26.0) | <0.001† <0.001* |
| All-cause mortality | 140 (23.5) | 55 (39.3) | 61 (61.0) | <0.001† <0.001* |