Relating factors the rate of children with growth retardation after birth were multiple pregnancies (OR = 1.5; 95% CI: 0.3 - 0.9); mother had preeclampsia (OR = 4.2; 95% CI: 1.2 - 15.0); boys (OR = 2.1; 95% CI: 1.1 - 3.9); birth weight < 1000 grams (OR = 9.4; 95% CI: 1.2 - 76.4).