Table 3.

Bivariate association between NNNS scales and mercury concentrations.

NNNS scales	Maternal mean WBTHg			Cord WBTHg
	Beta	Std err	p value	Beta	Std err	p value
Attention	0.184	0.096	0.06	0.150	0.081	0.07
Arousal	0.025	0.047	0.59	−0.029	0.041	0.49
Self-regulation	0.068	0.054	0.21	0.052	0.045	0.25
Handling	−0.035	0.021	0.09	−0.040	0.019	0.03
Quality of movement	0.053	0.040	0.19	0.037	0.035	0.29
Excitability	−0.008	0.138	0.96	−0.066	0.120	0.58
Lethargy	−0.116	0.119	0.33	−0.040	0.101	0.69
Non-optimal reflex	0.032	0.111	0.77	0.115	0.099	0.24
Asymmetry	0.065	0.062	0.29	0.120	0.056	0.03
Hypotonicity	0.049	0.160	0.76	0.043	0.145	0.77
Total stress	−0.002	0.004	0.57	−0.0003	0.003	0.91

Bold numbers indicate significance at p < 0.1.