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Table 3 Percent change in serum concentrations per unit change of determining factorsa.

From: Determinants of serum concentrations of organochlorine compounds in Swedish pregnant women: a cross-sectional study

Substance Age (years) Sampling year Pre-pregnancy BMI (kg/m2) Weight gain (% per week) Breast-fedb (months)
  (%change) (%change) (%change) (%change) (%change)
CB 118 7.9 (7.4, 8.5)* -16 (-18, -13)* -0.9 (-0.3, -1.5) -28 (-34, -22)* 0.6 (-0.3, 1.5)
CB 138 8.0 (7.5, 8.6)* -13 (-15, -11)* -1.3 (-1.9, -0.7)* -16 (-22, -8)* 1.1 (0.3–1.9)
CB 153 8.5 (8.1, 9.0)* -12 (-14, -11)* -2.9 (-3.4, -2.4)* -24 (-30, -18)* 1.3 (0.5, 2.1)
CB 156 13 (12, 13)* -16 (-19, -14)* -4.5 (-5.3, -3.8)* -35 (-42, -27)* 2.3 (1.2, 3.5)*
CB 180 9.0 (8.6, 9.4)* -12 (-14, -10)* -3.6 (-4.1, -3.2)* -32 (-36, -27)* 1.4 (0.7, 2.0)*
HCB 3.6 (3.3, 4.0)* -11 (-13, -9)* -0.4 (-1.0, 0.2) -22 (-26, -18)* 0.3 (-0.3, 0.9)
β-HCH 6.4 (5.9, 6.9)* -16 (-18, -14)* 0.4 (-0.2, 1.0) -11 (-19, -3) 1.3 (0.5, 2.1)
TNc 7.6 (7.0, 8.3)* -18 (-20, -15)* -3.0 (-3.6, -2.4)* -38 (-44, -32)* 1.0 (0.1, 1.9)
p, p'-DDE 8.8 (7.8, 9.3)* -13 (-16, -10)* 0.2 (-0.6, 1,0) -10 (-21, 2) 3.4 (2.2, 4.7)*
  1. aAdjusted means (-SD, +SD) calculated from the partial regression coefficients using a regression model including the independent variables age at sampling, year of sampling, pre-pregnancy BMI and weight gain during pregnancy.
  2. bThe regression model also included number of months the women were breast-fed during infancy.
  3. c trans-Nonachlor.
  4. *p > 0.05, N = 170–312.