Table 1.
Demographic and clinical characteristics of chronic cocaine abuse/dependence (CCA) and healthy control (HC) participants.
| CCA | HC | |||||
|---|---|---|---|---|---|---|
| Mean | SD (+/−) | Mean | SD (+/−) | p value | Cohen’s d | |
| Demographic | ||||||
| Age | 37.14 | 8.97 | 36.38 | 8.77 | p > .10 | −0.09 |
| Education | 12.5 | 1.98 | 13.44 | 1.90 | p > .10 | 0.48 |
| HQ | 67.21 | 71.48 | 90.10 | 16.04 | p > .10 | 0.44 |
| Clinical | ||||||
| BDI-II*▲ | 48.81 | 8.40 | 43.04 | 4.55 | p < .05 | −0.85 |
| STAI-State▲ | 49.61 | 10.54 | 45.53 | 8.02 | p > .10 | −0.43 |
| STAI-Trait▲ | 55.79 | 13.64 | 46.56 | 8.61 | p = .06 | −0.81 |
| FTND | 2.63 | 2.07 | 1.71 | 2.22 | p > .10 | −0.43 |
| CCQ-G* | 3.09 | 1.38 | 1.06 | .16 | p < .01 | −2.07 |
| CCQ-N* | 3.02 | 1.30 | 1.04 | .15 | p < .01 | −2.15 |
| Neuropsych | ||||||
| WTAR* | 45.00 | 11.38 | 54.94 | 7.89 | p < .01 | 1.02 |
| Attention▲ | 44.16 | 4.22 | 46.07 | 4.81 | p > .10 | 0.42 |
| Memory▲ | 54.65 | 8.60 | 52.65 | 9.33 | p > .10 | −0.22 |
| PS▲ | 48.49 | 4.89 | 46.79 | 5.96 | p > .10 | −0.31 |
| EF▲ | 48.45 | 9.83 | 48.69 | 4.72 | p > .10 | 0.03 |
Note: HQ = handedness quotient; BDI-II = Beck Depression Inventory-Second Edition; STAI = State-Trait Anxiety Index; FTND = Fagerstrom Test for Nicotine Dependence; CCQ-G = Cocaine Craving Questionnaire-General; CCQ-N = Cocaine Craving Questionnaire-Now; WTAR = Wechsler Test of Adult Reading; PS = processing speed; EF = executive function. Demographic data are raw scores (above solid line), whereas clinical and Neuropsychological measures (below solid line) are T-scores.
Denotes significant result
Means, standard deviations, and effect sizes for neuropsychological and some clinical indices reported following correction for WTAR as covariate at 50.30.