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Table 3 Distribution of creatinine-adjusted concentrations of urinary arsenic species (iAs, MMA, and DMA) (n = 64)

From: Genome-wide DNA methylation at birth in relation to in utero arsenic exposure and the associated health in later life

Exposure variablesa\Percentileb Min 5th 25th 50th 75th 95th Max
As metabolites (μg g−1 crea)
MMA 0.06 0.08 0.19 0.40 (1.10)c 1.67 6.14 28.5
DMA 0.07 3.09 11.27 20.73 (14.58) 29.5 70.75 129.1
iAs 0.11 0.19 0.41 0.83 (0.61) 1.33 4.74 6.55
tAs 0.34 3.76 12.09 23.19 (16.29) 33.29 76.02 137.5
  1. aAbbreviations: iAs represents the sum of As3+ and As5+; MMA: methylarsonic acid; DMA: dimethylarsinic acid; tAs: the sum of iAs, MMA, and DMA; μg g−1 crea: μg per g creatinine
  2. bPregnant women from Maternal Infant cohort in Taiwan (n = 64). Limit of detection for As3+ is 0.09 μg/L, As5+ is 0.05 μg/L, for MMA it is 0.05 μg/L and for DMA it is 0.04 μg/L
  3. cThe values inside parenthesis are the average value of unadjusted arsenic expressed as μg/L