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Table 2 Early and late pregnancy serum concentrations (ng/mL) of PFAS together with the relative changes that occurred during pregnancy

From: Pregnancy-induced changes in serum concentrations of perfluoroalkyl substances and the influence of kidney function

  Early Late   Change during pregnancy, (%)
Median 5th and 95th percentiles Median 5th and 95th percentiles p-value Median 5th and 95th percentiles
PFNA 0.7 0.4; 1.3 0.5 0.3; 1.1 < 0.001 −21 −37; − 1
PFOA 1.8 0.8; 4.4 1.5 0.7; 3.1 < 0.001 −19 −36; 7
PFOS 5.6 2.6; 11.5 4.8 1.9; 8.4 < 0.001 −15 −33; 9
PFHxS 1.9 1.3; 3.3 3.3 1.6; 5.8 < 0.001 69 3; 175