Table 2.
Rates of vitamin D deficiency, delivery by cesarean section and birth asphyxia in the GraviD cohort
| All | 25OHD < 30 nmol/L | 25OHD ≥ 30 nmol/L | |||||
|---|---|---|---|---|---|---|---|
| % | N | % | N | % | N | Pa | |
| Elective caesarean section | 4.9 | 90 | 3.8 | 6 | 5.3 | 84 | 0.445 |
| Emergency caesarean section | 7.7 | 141 | 9.2 | 15 | 7.5 | 126 | 0.450 |
| Apgar score 5 min < 7 | 0.6 | 11 | 1.9 | 3 | 0.5 | 8 | 0.029 |
| Arterial umbilical cord pH < 7.1 | 2.7 | 50 | 5.9 | 7 | 3.5 | 43 | 0.184 |
| Birth asphyxiab | 3.2 | 58 | 5.7 | 9 | 3.0 | 49 | 0.063 |
| Epidural anaesthesia at delivery | 25.3 | 464 | 19.1 | 31 | 26.0 | 433 | 0.057 |
T3 third trimester, 25OHD 25-hydroxyvitamin D, pH power of hydrogen
aDerived from Pearson’s chi square tests
bEither arterial umbilical cord pH < 7.1 or Apgar at 5 min < 7