Table 1.

Maternal pregnancy serum PFAA and serum androgens, androgen precursors, and gonadotropins concentrations in infants at four months of age

		Girls (N=165)		Boys (N=208)
	LOQ	n<LOQ (%)	Median (5^th, 95^th percentile) ^a	n<LOQ (%)	Median (5^th, 95^th percentile) ^a
Serum-PFHxS	0.03 ng/mL	0%	0.30 (0.15, 0.66)	0.5%	0.34 (0.13, 0.69)
Serum-PFOS	0.03 ng/mL	0%	8.07 (4.21, 15.50)	0%	8.33 (4.09, 15.67)
Serum-PFOA	0.03 ng/mL	0%	1.70 (0.67, 3.70)	0%	1.64 (0.73, 3.76)
Serum-PFNA	0.03 ng/mL	0%	0.66 (0.38, 1.43)	0%	0.67 (0.36, 1.40)
Serum-PFDA	0.03 ng/mL	0%	0.26 (0.16, 0.45)	0%	0.26 (0.14, 0.51)
DHEA	0.88 nM	0%	4.97 (2.23, 13.69)	0.5%	4.50 (1.65, 12.32)^*
DHEAS	48 nM	7.9%	173.59 (24.00, 622.65)	7.7%	161.81 (24.00, 585.06)
Androstenedione	0.18 nM	13.9%	0.33 (0.09, 0.75)	19.7%	0.31 (0.09, 0.65)^*
17-OHP	0.19 nM	0.6%	0.95 (0.38, 2.52)	0.5%	1.23 (0.46, 2.66)^*
Testosterone	0.10 nM	83.6%	0.05 (0.05, 0.14)	1.4%	3.23 (0.43, 8.32)^*
LH	0.05 IU/L	0%	0.15 (0.05, 1.12)	0%	2.00 (0.54, 5.28)^*
FSH	0.10 IU/L	0%	4.56 (2.15, 12.10)	0%	1.45 (0.56, 2.96)^*

Note: Data are presented as median (5^th, 95^th percentile).

17-OHP, 17-hydroxyprogesterone; DHEA, dehydroepiandrosterone; DHEAS, Dehydroepiandrosterone-sulfate, FSH, Follicle-Stimulating Hormone; LH, luteinizing hormone; LOQ, Limit of Quantification, PFDA, Perfluorodecanoic acid; PFHxS, Perfluorohexane sulfonic acid; PFOS, Perfluorooctane sulfonic acid; PFOA, Perfluorooctanoic acid; Perfluorooctane sulfonic acid; PFNA, Perfluorononanoic acid.

Values below limit of quantification (LOQ) were substituted by LOQ/2.

p-value<0.05, when comparing PFAA concentrations and hormone concentration between boys and girls using Wilcoxon rank sum test.