FIG. 2.

RRs, with 95% CI, for not responding to the PPD skin test (induration size <5 mm) in relation to quartiles of urinary arsenic concentrations in children at 4.5 years of age. The children were stratified by gender (A), nutritional status (B), SES (C), and their recent infections (D). The associations were adjusted for age, gender (except stratified by gender), and SES. Q1, first quartile (12–34 μg/l); Q2, second quartile (35–57 μg/l); Q3, third quartile (58–125 μg/l); and Q4, fourth quartile (126–1228 μg/l).