From: Second malignancies in breast cancer patients following radiotherapy: a study in Florence, Italy
Age-at-treatment (years) | Relative Riska(95% CIb) | P-value | Cases/women with hormonal therapy | Cases/women with no hormonal therapy |
---|---|---|---|---|
<50 | 0.57 (0.17, 1.92) | 0.37 | 3/52 (5.8%) | 34/367 (9.3%) |
50 to 64 | 0.85 (0.38, 1.94) | >0.5 | 8/187 (4.3%) | 26/426 (6.1%) |
65+ | 0.52 (0.11, 2.42) | 0.40 | 2/150 (1.3%) | 10/333 (3.0%) |
ALL | 0.70(0.38, 1.30) | 0.26 | 13/150 (8.7%) | 70/333 (21.0%) |