Table 8 Relative risk of other second cancers* among patients given radiation therapy, by age-at- treatment
From: Second malignancies in breast cancer patients following radiotherapy: a study in Florence, Italy
Age-at-treatment | RRaunadjusted for chemotherapy and hormonal therapy (95% CIb) | RRaadjusted for chemotherapy and hormonal therapy (95% CIb) | Cases/women with radiotherapy | Cases/women with no radiotherapy |
|---|---|---|---|---|
<50 | 1.54 (0.60, 3.93) | 1.36 (0.53, 3.51) | 9/584 (1.5%) | 10/632 (1.6%) |
50 to 64 | 2.44 (1.12, 5.30)** | 2.36 (1.08, 5.14)** | 18/549 (3.3%) | 11/687 (1.6%) |
65+ | 0.92 (0.18, 4.66) | 0.82 (0.16, 4.13) | 2/134 (1.5%) | 8/494 (1.6%) |