From: Seroprevalence of hepatitis B surface antigenemia and its effects on hematological parameters in pregnant women in Osogbo, Nigeria
HBsAg
Gravidity
Total
Primgravid
Multigravid
Positive
10
23
33
(11.2%)
(20.7%)
(16.5%)
Negative
79
88
167
(88.8%)
(79.3%)
(83.5%)
89
111
200