Table 1 Characteristics of the subjects.
Characteristics | Units | Boys (N = 288) | Girls (N = 261) | ||
|---|---|---|---|---|---|
Mothers | |||||
Age (Years) | Mean, SD | 28.3 | 5.3 | 28.2 | 5.2 |
Parity (% of primipara) | N, % | 105 | 36.5% | 97 | 37.2% |
Education (years) | Mean, SD | 10.7 | 3.5 | 10.9 | 3.8 |
(≥ 12 years) | N, % | 61 | 21.2% | 69 | 26.4% |
Family income (1000VND/month) | Mean, SD | 7.7 | 7.1 | 8.7 | 11.3 |
Alcohol drinking (yes, no) | N, % | 29 | 10.1% | 23 | 8.8% |
Family smoking (yes, no) | N, % | 195 | 67.7% | 174 | 66.7% |
Weight before delivery (kg) | Mean, SD | 59.7 | 7.8 | 59.6 | 7.7 |
Height before delivery (cm) | Mean, SD | 155.3 | 4.8 | 155.4 | 5.1 |
Infants | |||||
Gestational weeks | Mean, SD | 39.3 | 1.1 | 39.2 | 1.0 |
Premature birth (< 37 weeks) | N, % | 6 | 2.1% | 6 | 2.3% |
Low birth weight (< 2500 g) | N, % | 4 | 1.4% | 0 | 0.0% |
