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Table 3 Arsenic concentrations in biological samples from newborns

From: Effects of arsenic exposure on DNA methylation in cord blood samples from newborn babies and in a human lymphoblast cell line

Groups Arsenic concentrations
  Cord blood (μg/g) Toenails (μg/g) Fingernails (μg/g) Hair (μg/g)
Exposed 5.79 ± 0.5 a,* 1.52 ± 0.38*** 1.91 ± 0.38** 0.05 ± 0.01***
(n = 55) 6.27 (1.31-10.37)b 0.76 (nd-8.23) 1.45 (nd-9.08) 0.031 (nd-0.38)
Control 1.97 ± 0.64 0.12 ± 0.04 0.08 ± 0.05 0.01 ± 0.003
(n = 16) 1.25 (0.51-8.31) 0.03 (nd-0.59) 0.06 (nd-0.41) nd (nd-0.06)
  1. The values are expressed as the mean ± SE (a) and median (min - max) (b).
  2. nd : non detectable.
  3. *,**, *** : statistically significant difference from controls at p < 0.05, 0.01 and 0.001, respctively.