Table 1.

Relevant participant characteristics from the CLS included in the MR spectroscopy study.

Characteristic	Values
Age [years (mean ± SD)]	20.8 ± 0.91
Range (years)	19.7–22.9
Race [n (%)]
Black	147 (93)
White	11 (6.9)
Biracial	1 (0.1)
Sex [n (%)]
Female	76 (48)
Male	83 (52)
Mean childhood blood lead level [μg/dL (mean ± SD)]	13.3 ± 6.1
Range (μg/dL)	4.65–37.2
Gestational age at birth [weeks (mean ± SD)]	39.4 ± 1.7
Range (weeks)	35–43
Birth weight [g (mean ± SD)]	3,106 ± 467
Range (g)	1,814–4,260
IQ-FSIQ (at 7 years)	86.8 ± 11.9
Range	50–116
Marijuana use [n (%)]
Positive	76 (48)
Negative	83 (52)