Table 1.
Anthropometric and clinical characteristics and their association with log serum vitamin D level in pregnant women
| Parameters | Mean ± SD | Log Vitamin D Correlation Coefficient (R) | p-value |
|---|---|---|---|
| N | 515 | ||
| Age (years) | 28.71 (6.07) | 0.100* | 0.02 |
| BMI (kg/m2) | 28.47 (6.22) | −0.002 | 0.96 |
| Age of menarche (years) | 12.95 (1.63) | 0.047 | 0.60 |
| Age at 1st pregnancy (years) | 23.57 (4.49) | 0.076 | 0.42 |
| Gestation week | 11.20 (2.75) | −0.065 | 0.30 |
| Waist (cm) | 87.54 (12.23) | −0.021 | 0.82 |
| Hips (cm) | 108.01 (12.34) | 0.092 | 0.31 |
| Waist-hip ratio | 0.81 (0.07) | −0.124 | 0.17 |
| Systolic | 110.03 (11.56) | 0.083 | 0.11 |
| Diastolic | 64.81 (8.72) | 0.021 | 0.68 |
| Gravida# | 2.00 (3.00) | 0.027 | 0.61 |
| Parity# | 1.00 (2.00) | 0.008 | 0.90 |
| Ca (mmol/L) | 2.27 (0.17) | −0.107* | 0.02 |
| Total cholesterol (mmol/L) | 4.70 (1.03) | 0.172** | 0.01 |
| Glucose (mmol/L) | 4.79 (0.76) | 0.090 | 0.08 |
| Phosphate-inorganic (mmol/L) | 1.13 (0.25) | 0.090 | 0.88 |
| HDL-Cholesterol (mmol/L) | 1.14 (0.25) | 0.017 | 0.81 |
| Triglycerides (mmol/L)# | 1.24 (0.78) | 0.184** | 0.00 |
| Corrected Ca (mmol/L) | 2.24 (0.16) | 0.141* | 0.03 |
| Vitamin D (nmol/L)# | 19.13 (15.08) | -------- | -------- |
| Vitamin D - deficient | 350 (68 %) | -------- | -------- |
| Vitamin D - insufficient | 135 (26.2 %) | -------- | -------- |
| Vitamin D - sufficient | 18 (3.5 %) | -------- | -------- |
| Vitamin D - desirable | 12 (2.3 %) | -------- | -------- |
Note: Column1: data presented as mean ± standard deviation; # denotes non-Gaussian and data is presented as median (IQR); categorical data presented as frequency and percentages; p-value significant at <0.05. Column 2: data presented as coefficient (R);* p < 0.05; ** p < 0.01