Table 4.

Regression coefficients (×10⁻³)^a between nutrient intake and urinary arsenic metabolites (n= 1027)

Nutrients (units)	%iAs	%MMA	%DMA	MMA/iAs	DMA/MMA	DMA/iAs
Retinol (μgRE)	−0.04	−0.04	0.03	0.00	0.06	0.07
Vitamin C (mg)	−0.69	−0.04	0.30*	0.64	0.34	0.98*
α-tocopherol (mg)	−10.00	4.19	4.04	14.20*	−0.15	14.10
Thiamin (mg)	−87.20	−18.00	−24.60	69.20	−6.56	62.60
Riboflavin (mg)	−70.70	−2.59	18.60	68.10	21.20	89.30
Niacin (mg)	−7.58	−5.78	−0.95	1.80	4.83	6.63
Vitamin B6 (mg)	23.60	28.10	20.30	4.44	−7.80	−3.36
Folate (400 μg)	−0.35*	−0.08	0.01	0.27	0.09	0.36*
Vitamin B12 (μg)	−14.00*	−7.93	4.89*	6.11	12.80*	18.90*
Choline (mg)	−0.42*	−0.19	0.17*	0.23	0.36*	0.60*
Methionine (g)	−223.00**	−94.80	64.20*	128.00	159.00*	287.00**
Betaine (mg)	−0.70	−0.43	0.25	0.26	0.69	0.95
Calcium (mg)	0.04	0.23**	−0.03	0.19	−0.26*	−0.06
Phosphorus (mg)	0.09	0.04	−0.01	−0.06	−0.04	−0.10
Magnesium (mg)	0.31	0.12	−0.05	−0.19	−0.17	−0.36
Iron (mg)	−26.20**	−15.70*	0.92	10.50	16.60*	27.10*
Zinc (mg)	−37.70***	−24.60***	9.10*	13.10	33.70***	46.80***
Copper (mg)	−41.40	−40.50	15.20	0.92	55.70	56.60
Sodium (mg)	−0.06*	−0.01	0.01	0.04	0.02	0.063*
Potassium (mg)	−0.06	0.02	0.01	0.079*	0.00	0.08
Selenium (μg)	−3.04**	−1.40	0.39	1.64	1.80	3.43*

^*p<0.05,

^**p<0.01,

^***p<0.001

^aEach model contains only one nutrient adjusted by age (years), total energy intake (kcal/day) and TAs-AsB (μg/l); beta coefficients are log transformed