Table 1.
Demographic and drug use data for current cocaine users, former cocaine users, and healthy controls. Both descriptive and inferential statistics are provided. Seven of the current users had comorbid opioid dependence. Two of the former users had past comorbid opioid dependence. Values reported are M (SD), except where otherwise noted.
M=Male; F=Female; W=White; B=Black; H=Hispanic; A=Asian; X=Mixed; O=Other
| Current Users (n=30) |
Former Users (n=29) |
Healthy Controls (n=35) |
Group Comparison | |
|---|---|---|---|---|
| Age | 37.6 (7.3) | 40.3 (6.4) | 35.8 (10.0) |
F(2,91)=2.408 p=0.096 |
| Age range | 21 - 45 | 22 - 50 | 21 - 58 | -- |
| IQ | 92.9 (16.5) | 94.8 (17.0) | 110.3 (16.7) |
F(2,82)=9.159 p=0.0003 H>F (p=0.003) H>C (p=0.001) |
|
Sex (%M/F) |
60.0 / 40.0 | 75.9 / 24.1 | 54.3 / 45.7 |
χ2(2)=3.303 p=0.192 |
|
Race/Ethnicity (%W/B/H/A/X/O) |
57.1/0/11.4/2.9/0/28.6 | 37.9/31.0/17.2/0/3.5/10.3 | 46.7/43.3/6.7/0/0/3.3 |
χ2(10)=28.071 p=0.002 |
| Years of Education | 12.4 (1.9) | 13.0 (1.7) | 15.6 (2.4) |
F(2,80)=20.025 p<0.0001 H>F (p<0.0001) F>C (p<0.0001) |
|
Handedness (% right/left/ambidextrous) |
96.6 / 3.4 / 0 | 81.5 / 0 / 18.5 | 94.4 / 0 / 5.6 |
χ2(4)=8.047 p=0.090 |
|
Number of Alcoholic
Drinks/ Week |
10.3 (15.1) | 2.7 (7.3) | 3.8 (4.9) |
H(2)=11.792 p=0.003 H>F (p=0.011) C>F (p=0.002) |
| Percent Smokers | 86.2 | 71.4 | 9.4 |
χ2(2)=41.179 p<0.0001 |
| Number of Cigarettes/ Day | 9.4 (7.1) | 7.6 (8.3) | 1.2 (4.3) |
H(2)=33.122 p<0.001 F>H (p<0.0001) C>H (p<0.0001) |
| Years Smoking | 13.3 (8.8) | 13.3 (11.3) | 1.3 (5.2) |
H(2)=33.312 p<0.001 F>H (p<0.0001) C>H (p<0.0001) |
|
Duration of Cocaine Use
(months) |
196.4 (103.7) | 152.8 (96.3) | -- | -- |
|
Amount of Cocaine Used
(USD/day) |
$206.00 ($311.00) | $897.00 ($1474.00) | -- |
U=434 p=0.018 |
|
Duration of Cocaine
Abstinence (months) |
-- | 51.2 (76.8) | -- | -- |