Table 3.
Maternal characteristics in mothers with and without HBV infection born before or after the implementation of the neonatal HBV vaccination programme in 1984
| Born <1984 | Born ⩾1984 | OR (95% CI) | P | |
|---|---|---|---|---|
| HBsAg positive | ||||
| Nulliparas (%) | 90·0 | 90·9 | — | n.s. |
| Height <151 cm (%) | 1·7 | 10·8 | 7·03 (0·75–65·55) | 0·071 |
| BMI >25 kg/m2 (%) | 10·2 | 26·3 | 3·16 (1·04–9·58) | 0·036 |
| BMI <18·5 kg/m2 (%) | 13·6 | 5·3 | — | n.s. |
| Rubella non-immune (%) | 6·8 | 24·3 | 4·42 (1·25–15·62) | 0·014 |
| VDRL positive (%) | 0 | 3·6 | — | n.s. |
| Iron deficiency anaemia (%) | 1·7 | 0 | — | n.s. |
| Any medical condition (%) | 5·0 | 4·5 | — | n.s. |
| HBsAg negative | ||||
| Nulliparas (%) | 88·9 | 92·8 | 1·60 (1·10–2·33) | 0·012 |
| Height <151 cm (%) | 6·9 | 8·8 | — | n.s. |
| BMI >25 kg/m2 (%) | 15·9 | 17·1 | — | n.s. |
| BMI <18·5 kg/m2 (%) | 11·1 | 9·4 | — | n.s. |
| Rubella non-immune (%) | 3·2 | 6·7 | 2·20 (1·28–3·78) | 0·003 |
| VDRL positive (%) | 0·5 | 0·2 | — | n.s. |
| Iron deficiency anaemia (%) | 2·4 | 2·3 | n.s. | |
| Any medical condition (%) | 7·2 | 4·7 | 0·63 (0·40–0·98) | 0·043 |
BMI, Body mass index; VDRL, Venereal Disease Research Laboratory test; n.s., not significant.
Results expressed in % and compared to χ2 test.