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Table 3 Spearman correlation coefficients between organochlorine compounds (wet-based and lipid-based, n = 331) and their geometric means.

From: Immune function biomarkers in children exposed to lead and organochlorine compounds: a cross-sectional study

  ΣPCBs HCB γ-HCH Lipids ψ Lipids § DDE/lipid ΣPCBs/lipid HCB/lipid γ-HCH/lipid Geo-metric mean
DDE (μg/L) 0.61 p < 0.01 0.55 p < 0.01 0.16 p < 0.01 0.08 p = 0.09 0.06 p = 0.25 0.86 p < 0.01 0.51 p < 0.01 0.46 p < 0.01 0.14 p < 0.01 0.32
ΣPCBs (μg/L)   0.76 p < 0.01 0.04 p = 0.40 0.04 p = 0.65 0.05 p = 0.34 0.59 p < 0.01 0.90 p < 0.01 0.70 p < 0.01 0.09 p = 0.11 0.50
HCB (μg/L)    0.07 p = 0.19 0.03 p = 0.63 0.04 p = 0.47 0.54 p < 0.01 0.74 p < 0.01 0.83 p < 0.01 0.09 p = 0.11 0.22
γ-HCH (μg/L)     0.15 p = 0.01 0.11 p < 0.05 0.13 p = 0.02 0.05 p = 0.34 0.03 p = 0.64 0.88 p < 0.01 0.02
DDE, lipid-based Ψ (ng/g)        0.63 p < 0.01 0.63 p < 0.01 0.23 P < 0.01 103.03
ΣPCBs, lipid-based Ψ (ng/g)         0.81 p < 0.01 0.14 p = 0.01 164.99
HCB, lipid-based Ψ (ng/g)          0.16 p < 0.01 70.72
HCH, Lipid-based Ψ (ng/g)           6.65
  1. Ψ total lipids calculated as sum of cholesterol and triglycerides
  2. §total lipids calculated using formula 2 of Phillips et al.[28].
  3. rank correlation between total lipids from both formulae was (rSpearman = 0.95).
  4. ΣPCBs sum of PCB congeners 101, 118, 138, 153, 170, 180, 183, 187