Table 4: HBsAg and anti-HBs status of the infants.

Group A
(n=264)
Group B
(n=136)
Group C
(n=251)
P
Group B vs. C

HBsAg
 At birth16 (6.06%)17 (12.50%)15 (5.98%)0.026
 7 months14 (5.30%)15 (11.03%)1 (0.40%)<0.001
Anti-HBs
 7 months232 (87.88%)131 (96.32%)249 (99.20%)0.055

Values are reported as number (percentage), compared with chi-square test or fisher's test. n, number of patients.