Table 1. Characteristics of Research Participants.
Control | MA-Dependent | |
---|---|---|
Sample size | 42 | 36 |
Age | 31.6 ± 9.0 | 32.5 ±7.6 |
Education (yrs.) | 15.0 ± 2.1 | 12.8 ± 1.9 |
Mother's education (yrs.) | 14.4 ± 3.2 | 13.3 ± 2.4 |
Ethnicity | ||
Caucasian | 26 | 20 |
African Am. | 6 | 2 |
Hispanic | 2 | 9 |
Asian/Pacific Islander | 6 | 2 |
Other | 2 | 3 |
Gender | ||
Male | 19 | 24 |
Female | 23 | 12 |
Years of frequent MA use | -- | 6.4 ± 6.5 |
Grams MA/week | -- | 3.8 ± 4.8 |
Days abstinent from MA at cognitive testing | -- | 7.5 ± 2.7 |
Days used marijuana In last 30 days | 0.3 ±1.1 | 3.4 ± 6.9 |
Vocabulary score | 31.4 ± 3.5 | 26.3 ± 5.5 |
Cognitive battery score | .00 ± .54 | −.65 ± .48 |
Note. Where appropriate, values are means ± SD. Vocabulary score = Shipley-Hartford Vocabulary test; Years of frequent MA use = years using MA at least 3 times per week, or twice weekly binges.