Risk factor | OR | 95% CI |
Age at marriage (≤18 years) | 2.1 | 1.2 - 3.7 |
Height (≤145 cm) | 3.3 | 1.9 - 5.7 |
Weight before/at early pregnancy (≤45 kg) | 2.4 | 1.3 - 4.3 |
Weight at delivery (≤55 kg) | 2.7 | 1.5 - 5.0 |
BMI (<18 and 18 - 22 kg/m2)* | 5.1 | 1.6 - 21.3** |
Family history of LBW babies | 2.7 | 1.3 - 5.7 |
Low educational status | 1.7 | 1.2 - 2.5 |
Unskilled occupation | 1.6 | 1.1 - 2.4 |