Table 4.
Evaluation of outcomes.
| Study Number | HR/OR | Particularities (Cases vs. Controls) |
|---|---|---|
| 1 [23] Naghshineh et al. | 0.26 (p = 0.105) |
Preterm labor—6.0% vs. 24.3% (p = 0.006) |
| 2 [24] Sablock et al. | 4.60 * (p < 0.001) |
Preterm labor—8.3% vs. 21.1% (p = 0.080) APGAR < 7—1.1% vs. 13.0% (p < 0.001) Vitamin D in cord blood—22.7 vs. 17.3 (p < 0.001) |
| 3 [25] Mirzakhani et al. | 0.28 (p = 0.040) |
Vitamin D levels of 30 ng/mL or higher at trial entry and in late pregnancy were associated with a lower risk of preeclampsia |
| 4 [26] Sasan et al. | 1.94 * (p < 0.001) |
24 h proteinuria (mg/cc) 132.2 vs. 154.9 BMI > 30 kg/m2—18.6% vs. 29.6% |
| 5 [27] Dahma et al. | 2.52 * (p < 0.001) |
Parity (>2) carried a 1.89 higher risk for preeclampsia |
*—reference for patients with insufficient vitamin D levels; NR—not reported; cases—received vitamin D, controls—did not receive vitamin D supplementation; HDL—High-density lipoprotein; APGAR – activity, pulse, grimace, appearance, and respiration; BMI—body mass index.