Table 1 Levels of particular trace elements in children’s hair (mg·kg− 1)
From: Analysis of lead, arsenic and calcium content in the hair of children with autism spectrum disorder
Case group/n = 30 | Control group n = 30 | p | ||
|---|---|---|---|---|
Ca | M ± SD | 254.7 ± 91.96 | 312.8 ± 86.89 | p = 0.002 |
Median | 219.6 | 290.8 | ||
Range | 149.5–458.1 | 146.1–543.7 | ||
As | M ± SD | 0.216 ± 0.09 | 0.061 ± 0.03 | p < 0.001 |
Median | 0.196 | 0.058 | ||
Range | 0.051–0.499 | 0.004–0.133 | ||
Pb | M ± SD | 6.028 ± 0.69 | 3.415 ± 1.207 | p < 0.001 |
Median | 5.793 | 3.822 | ||
Range | 5.178–7.618 | 0.500–4.490 | ||