Table 3.

Variables affecting birth weight and mean birth weight according to variables

^*: Birth weights were expressed as mean±standard deviation with 95% confidence interval in the parenthesis, ^†: P values are based on t-test or ANOVA, ^‡: versus male, ^§: versus singleton, ^∥: versus singleton or twin, ^¶: versus vaginal delivery, ^**: versus 20-34 yr of maternal age.