Table 1.
Demographic Characteristics of High-Risk (HR) and Low-Risk (LR) Subjects
| HR (n=40) | LR (n=38) | p | ||
|---|---|---|---|---|
| Male/Female [n] | 23/17 | 19/19 | NS | |
| Socioeconomic Statusa,b | 42.87 (10.27) | 47.32 (8.52) | 0.04 | |
| Age at Study Entry | 11.78 (2.95) | 11.61 (2.64) | NS | |
| Scan Age | 15.08 (2.75) | 14.13 (3.19) | NS | |
| Age at Last Follow-Up | 21.13 (3.24) | 20.08 (2.94) | NS | |
| Substance Use Disorder Lifetime,C | 19 (47.5%) | 9 (23.7%) | 0.03 | |
| Age at SUD Onset | 18.21 (2.27) | 19.22 (2.59) | NS | |
| SUD prior to scan [n]d | 1 | 2 | NS | |
a
Data are presented with the mean (standard deviation) unless otherwise noted.
b
Socioeconomic status was assessed with the Hollingshead Four-Factor Index (Hollingshead, 1975).
C
X2 = 4.80,df =1, p=0.028
d
The high risk individual with an SUD diagnosis before the scan met criteria for alcohol dependence and drug abuse. The two low risk individuals with an SUD diagnosis before the scan consisted of one with both an alcohol abuse diagnosis and alcohol dependence, and the other with alcohol dependence only.