Adjusted HRs for Breast Cancer According to Thyroid Cancer Status Stratified by Follow-up Time
| Thyroid cancer | ||||
| Follow-up time (y) | Control, adjusted HR | Thyroid cancer, adjusted HR | Without 131I treatment, adjusted HR | With 131I treatment, adjusted HR |
| 95% CI | ||||
| ≤5 | 1.00 | 1.14 (0.87–1.48) | 1.25 (0.82–1.88) | 1.09 (0.80–1.49) |
| >5 | 1.00 | 1.65 (1.20–2.26) | 1.28 (0.72–2.26) | 1.81 (1.27–2.57) |
| 98% CI | ||||
| ≤5 | 1.00 | 1.14 (0.82–1.57) | 1.25 (0.75–2.06) | 1.09 (0.75–1.59) |
| >5 | 1.00 | 1.65 (1.12–2.42) | 1.28 (0.64–2.56) | 1.81 (1.18–2.77) |
Adjusted for age, all comorbidities, hormone therapy, mammography, and ultrasonography.