Table 4 Correlation of lead levels in maternal blood and umbilical cord blood with pregnancy outcomes
Lead concentration\ Adverse pregnancy outcomes | Lead concentration in maternal blood | Lead concentration in umbilical cord blood | ||
|---|---|---|---|---|
r | P value | r | P value | |
Birth weight (gr) | − 0.38 | 0.001 | -0.39 | 0.001a |
1-minute Apgar score | -0.56 | < 0.001 | -0.48 | < 0.001 a |
5-minute Apgar score | -0.38 | 0.001 | -0.43 | < 0.001 a |
Meconium | -0.13 | 0.25 | -0.1 | 0.4b |
Hospitalization in NICU | -0.29 | 0.01 | -0.17 | 0.14 b |
Respiratory problems | -0.16 | 0.18 | -0.05 | 0.63 b |
Congenital anomalies | 0.003 | 0.98 | 0.06 | 0.61 b |
Neonatal resuscitation | -0.2 | 0.09 | -0.09 | 0.4 b |