Table 1 Participant baseline characteristics, overall and by treatment group
Characteristic | Overall | Placebo | Vitamin D |
|---|---|---|---|
(n = 160) | (n = 80) | (n = 80) | |
Age, yrs 1 | 22.4 ± 3.5 | 22.4 ± 3.4 | 22.4 ± 3.5 |
Gestational age, weeks | 27.8 ± 1.1 | 27.9 ± 1.0 | 27.6 ± 1.1 |
Marital status 2 | Â | Â | Â |
   Married | 160 (100) | 80 (100) | 80 (100) |
Level of education | Â | Â | Â |
   Primary school incomplete (<8 yrs) | 102 (63.8) | 50 (62.5) | 52 (65.0) |
   High school incomplete (> = 8 to <12 yrs) | 49 (30.6) | 27 (33.8) | 22 (27.5) |
   Graduate school (> = 12 yrs) | 9 (5.7) | 3 (3.8) | 6 (7.5) |
Primary occupation | Â | Â | Â |
   Homemaker | 141 (88.1) | 72 (90.0) | 69 (86.3) |
   Other | 19 (11.9) | 8 (10.2) | 11 (14.0) |
Number of pregnancies | Â | Â | Â |
   Median | 1 | 1 | 1 |
   Range (Min, Max) | (1, 5) | (1, 4) | (1, 5) |
Number of live births | Â | Â | Â |
   Median | 0 | 0 | 0 |
   Range (Min, Max) | (0, 4) | (0, 2) | (0, 4) |
Height, cm | 150.3 ± 5.1 | 150.4 ± 5.4 | 150.3 ± 4.9 |
Weight, kg | 52.0 ± 8.5 | 51.8 ± 9.1 | 52.2 ± 8.0 |
Body mass index (BMI) | 23.0 ± 3.3 | 22.8 ± 3.5 | 22.1 ± 3.1 |