Age (years; mean ± SD [range]) | 29.03 ± 5.7 [17–47] |
Age distributiona | |
 Less than 25 years | 321 (32.2) |
 25–35 years | 513 (51.4) |
 More than 35 | 164 (16.4) |
Nationality | |
 Saudi | 899 (89.9) |
 Non Saudi | 101 (10.1) |
Educationa | |
 High school | 668 (70.4) |
 University or higher | 281 (29.6) |
Working statusa | |
 Housewife | 851 (85.3) |
 Employee | 147 (14.7) |
Reproductive history | |
 Parity |  |
  Primiparous | 12 (31.6) |
  Multiparous | 26 (68.4) |
 Positive history of multiple pregnancies | 56 (5.6) |
 Positive history of miscarriage | 245 (24.5) |
Status of current pregnancy | |
 Smoking during pregnancya | 20 (0.2) |
 Gestational age till delivery (Weeks; mean ± SD [range]) | 38.7 ± 1.9 [23–42] |
 Pregnancy BMI (Kg/m2; mean ± SD [range]) | 30.9 ± 6.7 [14.5–55.8] |
 Gestational diabetes | 111 (11.1) |
 Pre-Gestational diabetes | 19 (1.9) |
 Pre-existing hypertension | 4 (0.4) |
 Gestational hypertension | 14 (1.4) |
 Preeclampsia | 9 (0.9) |
 Intrauterine growth restriction | 15 (1.5) |
Delivery and neonatal outcomes | |
 Preterm labour | 80 (8.0) |
 Induction of labour | 128 (12.8) |
 Mode of delivery |  |
  Spontaneous | 768 (76.8) |
  Instrumental delivery | 61 (6.1) |
  Caesarian Section | 171 (17.1) |
 Baby’s weight (Kg; mean ± SD [range]) | 3.1 ± 0.5 [1.06–5.3] |
 Baby’s length (cm; mean ± SD [range]) | 49.5 ± 2.7 [34–62] |
 Baby’s head circumference (cm; mean ± SD [range]) | 34.1 ± 1.9 [26–52] |
 APGAR score | 8.6 ± 0.63 [7–9] |
 Neonatal admission to ICU | 29 (2.9) |
Vitamin D level (nmol/L; mean ± SD [range]) | 30.46 ± 19.6 [7.1–150] |