Skip to main content
. 2011 May 27;119(10):1460–1465. doi: 10.1289/ehp.1003246

Table 2.

Biomarker distribution measured in umbilical cord blood and maternal blood from the total mother–newborn population.

Mothers Newborns p-Value (mothers vs. newborns)
Biomarker n Mean ± SD Median (25th–75th percentile) n Mean ± SD Median (25th–75th percentile)
Total population
MNBN/1,000 BN 223 2.85 ± 2.18 2.36 (1.40–3.85) 251 1.86 ± 1.59 1.53 (0.77–2.47) < 0.001
MNMONO/1,000 MONO 223 0.72 ± 1.04 0.42 (0.00–1.01) 251 0.62 ± 0.71 0.44 (0.00–0.97) 0.770
CBPI 223 1.64 ± 0.25 1.70 (1.47–1.83) 251 1.56 ± 0.22 1.58 (1.44–1.71) < 0.001
Folate (ng/mL) 42 851.40 ± 365.32 794.20 (525.25–1119.53) 33 766.65 ± 272.63 714.20 (580.35–917.95) 0.445
Vitamin B12 (pg/mL) 88 234.67 ± 115.97 204.70 (152.28–300.28) 79 275.50 ± 156.33 256.60 (163.80–321.30) 0.130
Paired population
MNBN/1,000 BN 180 2.95 ± 2.27 2.50 (1.48–3.88) 182 1.77 ± 1.41 1.55 (0.77–2.30) < 0.001
MNMONO/1,000 MONO 180 0.73 ± 1.10 0.40 (0.00–1.00) 182 0.67 ± 0.74 0.50 (0.00–1.02) 0.313
CBPI 180 1.66 ± 0.24 1.72 (1.53–1.83) 182 1.59 ± 0.20 1.61 (1.48–1.74) < 0.001
Folate (ng/mL) 30 880.50 ± 376.57 814.70 (525.50–1222.00) 30 770.53 ± 286.06 676.10 (577.80–929.63) 0.327
Vitamin B12 (pg/mL) 76 234.53 ± 117.79 203.05 (152.93–291.68) 76 275.62 ± 155.29 258.90 (164.63–319.70) 0.129
Differences between mothers and newborns were analyzed with a Mann–Whitney U-test.