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Table 3 Levels of perfluoroalkylated substances and elements in amniotic fluid

From: Autism spectrum disorders, endocrine disrupting compounds, and heavy metals in amniotic fluid: a case-control study

 

ASD cases

Control

 

n

Median

Min-max

n

Median

Min-max

p

FDR (qvalue)

PFAS (ng/mL)

 PFOS

37

0.61

0.61–2.98

51

1.44

0.61–4.22

0.015

0.189

 PFOSA

37

0.60

0.60–13.30

51

0.60

0.60–19.00

0.152

0.638

 PFOA

37

0.29

0.10–0.78

51

0.32

0.10–1.86

0.516

0.764

 ∑PFSA

37

1.56

1.56–15.40

51

2.60

1.56–21.70

0.011

0.189

 ∑PFCA

37

1.54

1.35–2.03

51

1.57

1.35–3.11

0.489

0.764

 ∑PFSA+∑PFCA

37

3.26

2.91–17.37

51

4.23

2.91–23.26

0.021

0.189

Elements (μg/L)

 Fe

37

259.00

16.00–778.0

51

270.00

128.00–2575

0.571

0.764

 Cu

37

89.15

45.62–206.10

51

100.40

53.53–223.10

0.189

0.638

 Zn

37

97.90

34.69–754.5

51

102.00

30.90–1216

0.557

0.764

 Se

37

4.43

2.250–7.130

51

4.55

2.980–7.27

0.758

0.861

 I

37

1.88

1.88–94.68

51

1.88

1.88–195.40

0.765

0.861

 Cr

37

0.75

0.16–3.85

51

0.73

0.31–2.21

0.365

0.704

 Mn

37

0.65

0.65–25.89

51

0.65

0.65–5.26

0.826

0.892

 As

37

1.33

1.33–6.19

51

1.33

1.33–4.96

0.328

0.704

 Cd

37

0.02

0.02–1.92

51

0.02

0.02–0.14

0.648

0.795

 Pb

37

0.22

0.22–2.27

51

0.22

0.22–5.30

0.526

0.764

  1. ∑PFSA perfluorosulfonated acids which was the sum of PFOS, PFHpS, PFBS, PFHxS, PFDS, and PFOSA, ∑PFCA perfluorocarboxylated acids which was the sum of PFOA, PFHxA, PFHpA, PFNA, PFDA, PFUnA, PFDoA, and PFPeA, FDR (qvalue) false discovery rate. The difference between cases and controls was compared using non-parametric Mann-Whitney test. Italicized values indicate statistically significant (p < 0.05 and FDR qvalue < 0.25)