Table 2.

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

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

LODs in urine ug /L and hair (ug/g) were 0.002 and 0.0002 for Hg

LOD Limits of detection, AM mean, SD standard deviation, GM geometric mean, IRQ interquartile range, ASD Autism spectrum disorders