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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Neurotoxicology. 2012 Jan 31;33(4):687–696. doi: 10.1016/j.neuro.2012.01.005

Table 4.

Adjusted effect of Mn on the Aiming Pursuit hand dexterity test score, semi-parametric (GAM) model.

Estimate SE z value Pr(>|t|)
(Intercept) 129.7736 4.9641 26.142 0.0000

Gender (M Vs F) −4.8431 3.0155 −1.606 0.1094

SES * 1.1482 4.1185 0.279 0.7806

SES ** 5.4496 4.9228 1.107 0.2692

Maternal education * −7.2377 3.6392 −1.989 0.0477

Maternal education ** −4.1177 6.4537 −0.638 0.5240

Smoking habit −22.4593 15.4284 −1.456 0.1466

Alcohol consumption −4.5436 9.1090 −0.499 0.6183

(non parametric) Approximate significance of smooth terms
Edf Ref.df F p-value

Age 2.821 3.441 4.604 0.0023

Mn Soil 4.324 5.385 2.922 0.0115
*

Medium Vs Low;

**

High Vs Low