Table II.

Primary and secondary outcomes in two groups

Variable	Group A (400 IU Vit D)	Group B (50,000 IU Vit D every 2 weeks)	p-value
25 (OH) D3 of pregnant women at delivery time (ng/ml) (Mean±SD)	27.2±18.8	37.9±19.8	0.001
OGTT Results at 24-28 weeks
Number           Fasting blood glucose (mg/dl) (Mean±SD)           1-h OGTT           2-h OGTT           3-h OGTT	246 86.4±12.9 164.4±35.6 137.3±33.9 108.6±31.2	224 82±11.9 153.4±33.7 127.1±30.6 94.1±24.4	0.004 0.022 0.023 0.001
GDM (%)	13.4	6.7	0.01
Maternal outcomes
Number           Gestational hypertension (%)           Preeclampsia (%)           Preterm delivery (%)	203 0.7 2 4.2	186 1.3 3.9 5.2	0.57 0.33 0.58
Neonatal outcomes ( Mean±SD)
Number           Birth length (cm)           Birth weight, (g)           Head circumference(cm)           Apgar (minute1)           Apgar (minute 5)	203 50.22±5.4 3125.57±434.9 34.31±2.8 9.7±0.7 9.8±0.5	186 50.39±2.1 3088.72±481.21 34.35±2.2 9.83±0.6 9.9±0.2	0.7 0.43 0.88 017 0.17
25( OH) D3 of cord blood( ng/ml) (Mean±SD)	29.7±19	37.9±18	0.005
Neonatal complication (%)
Low birth weight           Macrosomia           Hypoglycemia           Respiratory distress	4 1.5 4.1 1	5.9 1.6 1.2 1.2	0.25 0.61 0.07 0.67

Chi-Square test and Student’s t- test were used to compare variables between two groups.

25 OH D3: 25-hydroxy vitamin D; OGTT: oral glucose tolerance test; GDM: Gestational diabetes mellitus