Factors including poor family [OR=7.9 (2.6 - 24.2)], height of pregnant woman is below 145 cm [OR=5.3 (1.7 - 17.0)], weight gain during pregnancy is below 9 kg [OR=3.5 (1.5 - 8.0)] and having first born child [OR=2.5 (1.1 - 5.8)] are related to LBW in univariate and multivariate analysis.