Viral hepatitis B & C | Total N= 9790 | Breast cancer | Â | Â | ||||
---|---|---|---|---|---|---|---|---|
 |  |  | No N= 7832 | Yes N= 1958 |  |  | ||
 | n | (%) | n | (%) | n | (%) | ORa | (95% CI) |
No | 8862 | (90.5) | 7102 | (90.7) | 1760 | (89.9) | 1.00 | (reference) |
HCV | 234 | (2.4) | 178 | (2.3) | 56 | (2.9) | 1.28 | (0.95-1.75) |
HBV | 603 | (6.2) | 480 | (6.1) | 123 | (6.3) | 1.05 | (0.85-1.28) |
HBV + HCV | 91 | (0.9) | 72 | (0.9) | 19 | (1.0) | 1.08 | (0.65-1.80) |