Table 3: Sero-prevalence of HBsAg by Occupation, Blood Transfusion & Gestational age among women attending antenatal care at FMC, Central Nigeria.
| Occupation | Number Tested (%) | HBsAg Positive (%) | χ2 value | P value |
| Civil servant | 50 (25.0) | 7 (14.0) | 6.62 | 0.863 |
| Housewife | 88 (44.0) | 20 (22.7) | ||
| Student | 62 (31.0) | 12 (19.3) | ||
| Total | 200 (100) | 39 (56.0) | ||
| Hist. of blood transf | Number Tested (%) | HBsAg Positive (%) | χ2 value | P value |
| Yes | 57 (25.0) | 17 (29.8) | 0.64 | 0.016 |
| No | 143 (71.5) | 22 (15.3) | ||
| Total | 200 (100) | 39 (45.1) | ||
| Gestation Age | Number Tested (%) | HBsAg Positive (%) | χ^2value | P value^ |
| 1st Trimester | 77 (38.5) | 14 (18.2) | 5.73 | 0.010 |
| 2nd Trimester | 100 (50.0) | 22 (15.3) | ||
| 3rd Trimester | 23 (11.5) | 9 (39.2) | ||
| Total | 200 (100) | 39 (45.1) |