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| Breastfed n = 397 (%) | Formula-fed n = 149 (%) | P value | |
| HBsAg+ | 6 (1.5) | 7 (4.7) | 0.063 |
| Anti-HBc+/HBsAg− | 9 (2.3) | 8 (5.4) | 0.114 |
| Anti-HBs ≥10 mIU/ml | 290 (73.0) | 101 (67.8) | 0.224 |
HBV, hepatitis B virus; HBsAg, hepatitis B surface antigen; anti-HBc, antibody against hepatitis B core antigen; anti-HBs, antibody against HBsAg; OR, odds ratio; CI, confidence interval.
