Table 4.

Regression model parameter estimates (95% confidence intervals) for children ages 1–7 and 8–17 and adults ≥18.

Parameter	1–7 (n = 135)			8–17 (n = 55)			≥18 (n = 183)
Parameter	Estimate	(95% CI)	p value	Estimate	(95% CI)	p value	Estimate	(95% CI)	p value
Untreated water [As] (μg/L)	0.0021	(0.0008, 0.0034)	0.0013	0.0013	(0.0007, 0.0018)	<.0001	0.0014	(0.0006, 0.0022)	0.0010
Untreated water consumption (L)	−0.7872	(−1.7116, 0.1422)	0.0969	−1.6286	(−2.5035, −0.7537)	0.0003	−0.1435	(−0.6390, 0.3520)	0.5703
Untreated water from cooking (L)	1.1372	(−0.5421, 2.8165)	0.1844	−0.7605	(−2.1996, 0.6786)	0.3003	−1.5169	(−3.3288, 0.2951)	0.1009
Untreated water [As] × untreated water consumption (μg)	0.0205	(0.0028, 0.0382)	0.0235	0.0957	(0.0509, 0.1405)	<.0001	0.0224	(0.0036, 0.0411)	0.0194
Untreated water [As] × untreated water from cooking (μg)	0.0117	(−0.0044, 0.0278)	0.1538	−0.0008	(−0.0690, 0.0675)	0.9828	0.0395	(0.0139, 0.0650)	0.0025
Treated water [As] (μg/L)	0.1037	(0.0254, 0.1820)	0.0095	0.0602	(0.0096, 0.1108)	0.0197	0.0798	(0.0335, 0.1260)	0.0007
Treated water consumption (L)	−0.0478	(−0.2183, 0.1227)	0.5826	0.2219	(0.1029, 0.3409)	0.0003	0.0557	(−0.0028, 0.1142)	0.0619
Treated water from cooking (L)	−1.1925	(−2.0308, −0.3541)	0.0053	−1.1882	(−1.6792, −0.6972)	<.0001	−0.1321	(−0.5772, 0.3129)	0.5606
Apple juice consumption (L)	0.1988	(−0.0900, 0.4875)	0.1773	0.4430	(0.2023, 0.6837)	0.0003	–	–	–
Rice meal consumption (g dry rice)	0.0071	(0.0040, 0.0102)	<.0001	0.0104	(0.0060, 0.0147)	<.0001	0.0027	(0.0009, 0.0044)	0.0029
Seafood consumption (previous week)	0.0165	(−0.1772, 0.2102)	0.8675	0.1382	(−0.1469, 0.4233)	0.3421	0.2655	(0.0915, 0.4396)	0.0028

Results for ln-transformed subtracted urinary arsenic adjusted for gender, age, and creatinine. All consumption variables represent 3-day totals.