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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Neurotoxicol Teratol. 2009 Apr 2;31(4):225–231. doi: 10.1016/j.ntt.2009.03.002

Table 2.

Caregiver Characteristics, Mean (SD)

4 year (N = 278) 9 year (N = 273) 11 year (N = 267)
HOME score 41.71 (6.29) 43.39 (5.90) 46.71 (5.81)
Non-relative Adoptive/Foster, n (%) 27 (10%) 28 (10%) 24 (9%)
Global Severity Index 0.36 (0.40) 0.36 (0.43) 0.39 (0.47)
PPVT Standard Score 77.93 (15.91) 85.17 (9.50) 85.56 (9.42)
WAIS-R Block Design 7.08 (2.19) 7.10 (2.23) 7.20 (2.02)
WAIS-R Picture Completion 7.03 (2.31) 7.06 (2.38) 7.20 (2.39)
Average drug use (past 30 days)
 Cocaine units/week 3.27 (36.8) 0.006 (0.09) 0
 Alcohol dose/week 2.47 (7.56) 1.54 (3.90) 1.80 (6.05)
 Marijuana dose/week 0.17 (0.90) 0.32 (2.19) 0.82 (5.39)
 Cigarette use/day 6.13 (8.11) 5.11 (7.07) 4.75 (6.64)

PPVT= Peabody Picture Vocabulary Test, PPVT-R (Revised) used at 4 year; PPVT-III (Third edition) was used at 9 & 11 years; WAIS-R = Wechsler Adult Intelligence Scale-Revised.