From: Second malignancies in breast cancer patients following radiotherapy: a study in Florence, Italy
Cancer type | Follow-up | 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 |
---|---|---|---|---|---|
Leukaemia | > = 2 years | 8.13 (0.96, 69.10)** | 6.67 (0.76, 58.00) | 7/2,339 (0.3%) | 1/2377 (0.04%) |
Contralateral breast cancer | > = 5 years | 0.87 (0.58, 1.32) | 0.82 (0.54, 1.24) | 41/1,267 (3.2%) | 67/1,813 (3.7%) |
All other cancers combined | > = 5 years | 1.84 (1.06, 3.16)* | 1.70 (0.98, 2.94)** | 29/1,267 (2.3%) | 29/1,813 (1.6%) |