Table 4 Risks of breast-cancer-specific and overall survival according to breastfeeding history stratified by menopausal status
| Â | Premenopausal | Postmenopausal | ||||
|---|---|---|---|---|---|---|
Case | Events | HR (95% CI) | Case | Events | HR (95% CI) | |
Breast feeding | Breast cancer specific survival | |||||
Yes | 10794 | 297 | 1.083 (0.890-1.319) | 6176 | 218 | 0.803 (0.586-1.101) |
No | 5820 | 149 | Ref | 1122 | 47 | Ref |
p-value | Â | Â | 0.4267 | Â | Â | 0.1726 |
Breast feeding | Overall survival | |||||
Yes | 10794 | 751 | 0.916 (0.814-1.030) | 6176 | 619 | 0.982 (0.800-1.206) |
No | 5820 | 445 | Ref | 1122 | 107 | Ref |
p-value | Â | Â | 0.1412 | Â | Â | 0.8612 |