Table 3.

Multivariate predictors for hair metal levels in Uruguayan children.

	Lead1	Manganese1	Cadmium1	Arsenic1
Model 1
Intercept	2.54 ± 0.21**2	−0.12 ± 0.211	−1.84 ± 0.25**2	−2.77 ± 0.25**2
Child age (months)	−0.03 ± 0.01**	0.00 ± 0.01	−0.02 ± 0.01*	0.00 ± 0.01
Sex2	0.09 ± 0.13	0.11 ± 0.13	0.15 ± 0.15	−0.41 ± 0.15**
Hemoglobin <10.5 g/dL	0.16 ± 0.13	0.42 ± 0.13**	0.25 ± 0.16	0.43 ± 0.16**
Blood lead (μg/dL)	0.04 ± 0.01**	0.03 ± 0.01**	0.03 ± 0.01*	0.04 ± 0.01**
Model 2
Intercept	2.77 ± 0.31**	0.78 ± 0.30*	−1.44 ± 0.37**	−2.24 ± 0.35**
Child age (months)	−0.03 ± 0.01**	−0.01 ± 0.01	−0.02 ± 0.01*	0.00 ± 0.01
Sex3	0.20 ± 0.13	0.20 ± 0.13	0.19 ± 0.16	−0.28 ± 0.15#
Hemoglobin <10.5 g/dL	0.12 ± 0.14	0.33 ± 0.14*	0.23 ± 0.17	0.36 ± 0.16**
Blood lead (μg/dL)	0.03 ± 0.01**	0.01 ± 0.01	0.02 ± 0.01	0.02 ± 0.01#
Maternal education4	−0.45 ± 0.15**	−0.46 ± 0.15**	−0.25 ± 0.19	−0.52 ± 0.17**
Household possessions	0.02 ± 0.03	−0.07 ± 0.03*	−0.03 ± 0.03	−0.02 ± 0.03
Model 3
Intercept	2.07 ± 0.34**	0.62 ± 0.34#	−0.76 ± 0.52	−1.83 ± 0.49**
Child age (months)	−0.02 ± 0.01*	−0.01 ± 0.01#	−0.02 ± 0.01*	0.01 ± 0.01
Sex3	0.19 ± 0.14	0.22 ± 0.14	0.25 ± 0.18	−0.21 ± 0.18
Hemoglobin <10.5 g/dL	0.28 ± 0.15#	0.15 ± 0.15	0.24 ± 0.20	0.51 ± 0.19**
Blood lead (μg/dL)	0.01 ± 0.01	0.00 ± 0.01	0.01 ± 0.02	0.03 ± 0.02#
Maternal education4	−0.16 ± 0.17	−0.25 ± 0.16	−0.28 ± 0.22	−0.11 ± 0.21
Household possessions	0.00 ± 0.03	−0.05 ± 0.03#	−0.01 ± 0.04	−0.02 ± 0.04
Maternal hair metal level (μg/g)1	0.30 ± 0.07**	0.49 ± 0.08**	0.32 ± 0.08**	0.30 ± 0.09**

¹Hair metals values log-transformed for this analysis;

²Values given as β ± SE and %Variability in hair metal level explained by predictor;

³Reference group is boys;

⁴Education level defined as having no (reference group) or any secondary education;

^**p<0.01;

^*p<0.05;

^#p<0.1.