| Age (year) | | | 30.6 | 5:03 | 17 | 41 | 30.5 |
| Gestational age (week) | | | 32.6 | 3.7 | 28 | 40 | 32 |
| Number of pregnancy | | | 2.6 | 1.1 | 1 | 5 | 3 |
| Upper arm circumference (cm) | | | 27.6 | 3.9 | 20 | 38 | 27 |
| Skinfold thickness (cm) | | | 15.2 | 7.2 | 3 | 35 | 12 |
| Serum 25(OH)D level (ng/mL) | | | 23.0 | 10.0 | 7.4 | 51.5 | 21.1 |
| Deficiency (< 20 ng/mL) | 40 | 45.5 | | | | | |
| Insufficiency (20–31 ng/mL) | 32 | 36.4 | | | | | |
| Sufficiency (32–100 ng/mL) | 16 | 18.2 | | | | | |
| Vitamin D intake (μg/1000 kcal/day) | | | 5.6 | 3.9 | 0.0 | 16.4 | 4.6 |
| Sunlight exposed BSA (%) | | | 15.2 | 6.8 | 4.9 | 28.4 | 15.8 |
| Duration of sunlight exposure (minute/day) | | | 110.8 | 156.7 | 0:00 | 990 | 60 |
| < 30 | 26 | 29.5 | | | | | |
| 30–60 | 18 | 20.5 | | | | | |
| > 60–120 | 25 | 28.4 | | | | | |
| > 120 | 19 | 21.6 | | | | | |
| Skin pigmentation type (Fitzpatrick’s scale) |
| III | 1 | 1.1 | | | | | |
| IV | 11 | 76 | | | | | |
| V | 76 | 86.4 | | | | | |
| Sunscreen use |
| Regular | 7 | 8 | | | | | |
| Irregular | 11 | 12.5 | | | | | |
| Non-user | 70 | 79.5 | | | | | |
