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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.