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Table 2 Concentrations for mercury (Hg) in urine and hair samples from children with autism spectrum disorders (ASD) and a healthy children control

From: Neurotoxicity by mercury is not associated with autism spectrum disorders in Spanish children

Heavy metal

Groups

% LOD

AM ± SD

GM

Median (IQR)

Maximum

Hg Urine (ug/L)

Control (n = 54)

25(46%)

0,33 ± 0,42

0,04

0,17 (0,002-0,58)

1,39

ASD

26 (51%)

0,54 ± 0,78

0,03

0,002 (0,002-0,98)

3,86

ANMR(n = 33)

12 (39%)

0,68 ± 0,85

0,08

0,55 (0,002-1,18)

3,86

AMR(n = 19)

13 (68%)

0,35 ± 0,62

0,01

0,002 (0,002-0,55)

1,90

Hg Hair (ug/g)

Control (n = 54)

2 (4%)

13 ± 12,68

5,40

10,08 (3,13-18,2)

51,99

ASD

2 (4%)

8,26 ± 10,57

3,21

4,46 (1,66-9,35)

48,94

ANMR (n = 33)

2 (6%)

9,26 ± 12,34

2,66

4,46 (1,66-9,78)

48,94

AMR (n = 19)

0

6,57 ± 6,81

4,13

3,79 (1,63-9,33)

27,03

  1. LODs in urine ug /L and hair (ug/g) were 0.002 and 0.0002 for Hg
  2. LOD Limits of detection, AM mean, SD standard deviation, GM geometric mean, IRQ interquartile range, ASD Autism spectrum disorders