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Table 6 Descriptive statistics for MIREC Organochorine concentrations in maternal and cord blood plasma (lipid-adjusted—μg/kg)

From: Concentrations of persistent organic pollutants in maternal and cord blood from the maternal-infant research on environmental chemicals (MIREC) cohort study

Contaminanta Aliquot N LOD % < LOD Min Median 95th Percentile Max KM Median 95 % CI GM 95 % CI
Beta-HCH Maternal 1898 0.01 31.88 ND 2.31 18.97 1108.11 2.24 2.15 2.32 2.32 2.19 2.46
Cord 1379 0.01 93.55 ND ND 47.62 740.74 NA NA NA NA NA NA
Cis-nonachlor Maternal 1934 0.005 88.31 ND ND 1.25 3.91 NA NA NA NA NA NA
DDE Maternal 1935 0.09 1.03 ND 48.33 262.55 5306.12 48.33 46.68 49.99 56.02 54.02 58.08
Cord 1382 0.09 87.48 ND ND 452.50 1827.96 NA NA NA NA NA NA
DDT Maternal 1935 0.05 96.28 ND ND ND 175.44 NA NA NA NA NA NA
Cord 1381 0.05 99.71 ND ND ND 500 NA NA NA NA NA NA
HCB Maternal 1934 0.04 69.54 ND ND 11.73 101.67 NA NA NA NA NA NA
Cord 1380 0.04 99.86 ND ND ND 400 NA NA NA NA NA NA
Mirex Maternal 1934 0.01 91.83 ND ND 2.50 38.03 NA NA NA NA NA NA
Oxychlordane Maternal 1933 0.005 7.81 ND 2.09 4.60 17.5 2.09 2.02 2.15 2.01 1.96 2.06
Cord 1378 0.005 97.97 ND ND ND 50 NA NA NA NA NA NA
Parlar26 Maternal 1934 0.005 97.47 ND ND ND 3.65 NA NA NA NA NA NA
Parlar50 Maternal 1934 0.005 87.28 ND ND 1.22 5 NA NA NA NA NA NA
Transnonachlor Maternal 1934 0.01 15.87 ND 2.89 7.30 34.33 2.88 2.78 2.99 2.90 2.83 2.98
Cord 1381 0.01 98.99 ND ND ND 100 NA NA NA NA NA NA
  1. ND Due to a high percentage of non-detects, descriptive statistics were not reported
  2. NA Non-applicable (KM median and GM MLE of contaminants with less than 50 % of observations detected were not calculated)
  3. a Aldrin, Alpha-chlordane, Gamma-Chlordane, and Gamma-HCH were not detected in both maternal and cord blood samples. Contaminants cis-nonachlor, Mirex, Parlar-26, and Parlar-50 were not detected in the cord blood