Table 12 Relative risk of all second cancer due to combined therapy* compared with radiotherapy only
From: Second malignancies in breast cancer patients following radiotherapy: a study in Florence, Italy
Age-at-treatment (years) | Relative risk (95% CIa) | P-value | Cases/women with RT plus chemotherapy or/and hormonal therapy | Cases/women with only RT |
|---|---|---|---|---|
<50 | 0.43 (0.16, 1.14) | 0.09 | 5/164 (3.0%) | 27/420 (6.4%) |
50 to 64 | 0.44 (0.15, 1.29) | 0.14 | 4/142 (2.8%) | 31/407 (7.6%) |
65+ | 0.82 (0.09, 7.51) | >0.5 | 1/128 (0.8%) | 5/106 (4.7%) |
All | 0.47 (0.23, 0.92) | 0.03 | 10/334 (3.0%) | 63/933 (6.7%) |