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. 2011 Feb 4;119(7):908–913. doi: 10.1289/ehp.1002529

Table 1.

Demographics of subjects who completed the fMRI study.

Table 1. Demographics of subjects who completed the fMRI study.
Variable Solvent exposed (n = 23) Controls (n = 27) p-Value
Age (years) 46.22 ± 1.62 45.85 ± 1.48 0.8683
Education (years) 12.52 ± 0.36 12.5 ± 0.24 0.9593
Race/ethnicity
Caucasian 17 (74) 25 (93)
Hispanic 6 (26) 2 (7)
Other 0 0
Verbal IQ (NAART) 93.37 ± 2.07 101.93 ± 1.30 0.0007*
Years worked 21.05 ± 1.46 21.48 ± 1.22 0.8192
Blood lead (μg/dL) 5.91 ± 0.82 2.48 ± 0.20 0.0001*
Solvent exposure (106 ppm-hr) 3.89 ± 1.02 0 0.0001*
Lifetime alcohol use (percentile rank) 34.43 ± 5.44 44.74 ± 4.05 0.1289
Lifetime marijuana use (percentile rank) 34.83 ± 6.13 33.48 ± 5.68 0.8729
Lifetime cocaine use (percentile rank) 24.09 ± 6.21 33 ± 6.64 0.3373
BDI depression total 2.43 ± 0.54 3.19 ± 0.72 0.4211
BDI cognitive 0.35 ± 0.13 0.67 ± 0.21 0.2312
BDI somatic/affective 1.3 ± 0.3 1.44 ± 0.33 0.7557
Values shown are mean ± SE or n (%). *Statistically significant by t‑test.