Table 2 Vitamin D status
Variable | Cord 25(OH)D concentrations <10 ng/mL | Cord 25(OH)D concentrations ≥10 ng/mL | P |
|---|---|---|---|
At birth | |||
N | 20 | 29 | |
Serum 25(OH)D levels | 8.3 ± 1.9 | 21.4 ± 8.5 | <0.001 |
Vitamin D sufficiency (>30 ng/mL) | 0 (0%) | 5 (17%) | 0.07 |
32 ± 1 weeks postmenstrual age | |||
N | 13 | 18 | |
Serum 25(OH)D levels | 15.3 ± 10.1 | 24.1 ± 9.3 | 0.05 |
Vitamin D sufficiency (>30 ng/mL) | 3 (23%) | 4 (22%) | 1.00 |
36 ± 1 weeks postmenstrual age | |||
N | 17 | 26 | |
Serum 25(OH)D levels | 43.1 ± 20.3 | 57.7 ± 21.9 | 0.03 |
Vitamin D sufficiency (>30 ng/mL) | 11 (65%) | 23 (88%) | 0.12 |