Table 1 Baseline characteristics of the study population
From: The relationship between vitamin D and insulin resistance before delivery in advanced maternal age
Characteristics | Vitamin D deficiency (n = 40) | Vitamin D Non-deficiency (n = 40) | P-value |
|---|---|---|---|
Age (years) | 36(35–38) | 36(35–39) | 0.856 |
Education (years) −12 12–16 16- | 14(12–16) 11(27.5) 25(62.5) 4(10) | 16(14–16) 6(15) 30(75) 4(10) | 0.080 |
pre-pregnancy body mass index (kg/m2) | 23.18 ± 2.56 | 22.96 ± 2.50 | 0.689 |
Age at menarche (years) | 14(13–14) | 14(13–14) | 0.758 |
Parity (numbers) > 2 | 3(2–4) 22(55) | 3(2–4) 22(55) | 0.782 |
Abortion (numbers) | 1(1–2) | 1(0–2) | 0.491 |