Table 1.

Characteristics of study participants

Skin lesions (n = 11)No arsenical skin lesions* (n = 5)No arsenical skin lesions* (n = 20)
Well water arsenic (μg/L), mean (SD)342.7 (258.1)39.6 (49.5)94.5 (90.6)
Urinary total arsenic (μg/g), mean (SD)467.8 (325.4)109.8 (66.1)279.7 (233.3)
Age (y), mean (SD)35.0 (7.8)38.0 (6.7)26.4 (4.4)
Females, n (%)9 (81.8)5 (100.0)14 (70.0)
Smokers, n (%)2 (18.2)0 (0.0)3 (15.0)
  • * Two groups of nonlesion arrays were analyzed separately because they differed on microarray quality-control metrics.