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Percentage distribution of HBsAg according to the age of mother and gestation
| Parameter | Total | Positive (%) | Negative (%) | P |
|---|---|---|---|---|
| Age group (years) | ||||
| 16-20 | 102 | 3 (2.9) | 99 (97.1) | 0.968 |
| 21-25 | 229 | 10 (4.4) | 219 (95.6) | |
| 26-30 | 283 | 12 (4.2) | 271 (95.8) | |
| 31-35 | 125 | 4 (3.2) | 121 (96.8) | |
| 36-40 | 54 | 2 (3.7) | 52 (96.3) | |
| 41-50 | 7 | 0 (0.0) | 7 (100.0) | |
| Gestational period | ||||
| Unknown | 1 | 0 (0.0) | 1 (96.1) | 0.938 |
| 1-3 | 76 | 2 (2.6) | 74 (97.4) | |
| 4-6 | 440 | 18 (4.1) | 422 (95.9) | |
| 7-9 | 283 | 11 (3.9) | 272 (96.1) |
HBsAg=Hepatitis B surface antigen
