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Table 3 Unadjusted model and models adjusted for important covariates

From: Low-level environmental lead exposure in childhood and adult intellectual function: a follow-up study

Covariate N (Undaj. Model) N
(Adj. Model)
Adjusted estimate for lead
[β (95% CI)]
Spearman Correlation
between lead level and covariate
Spearman Correlation
between Total IQ and covariate
None 42 - -1.89 (-3.30, -0.47) - -
Gender 42 42 -1.88 (-3.31, -0.45) 0.02 0.01
Birth Weight 42 42 -1.46 (-2.69, -0.24) -0.13 0.56
Birth Order (first born/not first born) 42 42 -1.74 (-3.18, -0.30) 0.17 -0.21
Gestational age 42 42 -1.88 (-3.25, -0.52) 0.03 0.30
Mother's marital status (married/not married) 42 39 -2.00 (-3.57, -0.43) 0.20 -0.28
Mother's education (college/no college) 42 39 -1.89 (-3.33, -0.45) -0.25 0.39
Maternal IQ 42 42 -1.11 (-2.29, 0.06) -0.24 0.67
Race (white/nonwhite) 42 42 -1.76 (-3.35, -0.17) -0.37 0.29
Maternal Smoking During pregnancy (y/n) 42 39 -1.62 (-3.04, -0.21) 0.29 -0.51
Maternal Alcohol Use During pregnancy (y/n) 42 39 -2.28 (-3.88, -0.68) 0.09 -0.03
HOME score (mean of all collected) 42 42 -1.45 (-2.89, -0.01) -0.25 0.38
Concussion (y/n) 42 41 -1.84 (-3.32, -0.36) -0.19 -0.08
Subject current smoking (y/n) 42 42 -1.56 (-2.97, -0.14) 0.24 -0.38