Table 1.
Men (n = 451) | Women (n = 469) | p-value | |
---|---|---|---|
Study, % (n) | .013 | ||
Petry et al. (2004) | 12 (53) | 14 (67) | |
Petry et al. (2005) | 14 (65) | 16 (77) | |
Petry et al. (2006) | 11 (48) | 8 (36) | |
Petry et al. (2011) | 30 (136) | 22 (103) | |
Petry et al. (2012) | 33 (149) | 40 (186) | |
CM condition | 57 (257) | 61 (284) | .271 |
Race, % (n) | .039 | ||
African American | 44 (200) | 53 (247) | |
Caucasian | 40 (181) | 35 (163) | |
Other | 16 (70) | 13 (59) | |
Marital status, % (n) | .562 | ||
Never married | 56 (253) | 57 (266) | |
Married, remarried, cohabitating | 18 (80) | 15 (70) | |
Separated/divorced | 25 (111) | 26 (122) | |
Widowed | 2 (7) | 2 (11) | |
Employment status, % (n) | <.001 | ||
Full time | 53 (237) | 31 (143) | |
Part-time | 20 (92) | 26 (124) | |
Unemployed | 15 (68) | 35 (162) | |
Retired/disability | 7 (32) | 6 (29) | |
Student/controlled environment | 2 (22) | 1 (11) | |
Intake positive sample, % (n) | 20 (92) | 29 (134) | .004 |
Cocaine dependent, % (n) | 83 (376) | 87 (407) | .146 |
Alcohol dependent, % (n) | 56 (251) | 52 (242) | .218 |
Opiate dependent, % (n) | 28 (122) | 26 (122) | .641 |
Age | 37.93 (9.60) | 35.60 (8.50) | <.001 |
Years education | 12.09 (1.93) | 11.76 (2.02) | .011 |
Years cocaine use | 10.01 (8.38) | 9.61 (7.26) | .437 |
Years alcohol use | 15.74 (11.03) | 11.86 (9.76) | <.001 |
Years heroin use (among users) | 7.49 (8.10) | 7.42 (6.86) | .938 |
ASI scores | |||
Medical | 0.23 (0.34) | 0.27 (0.36) | .073 |
Employment | 0.69 (0.29) | 0.78 (0.26) | <.001 |
Alcohol | 0.24 (0.24) | 0.20 (024) | .016 |
Drug | 0.15 (0.10) | 0.17 (0.10) | .025 |
Legal | 0.15 (0.22) | 0.12 (0.20) | .021 |
Family/social | 0.16 (0.20) | 0.20 (0.23) | .030 |
Psychiatric | 0.25 (0.23) | 0.30 (0.24) | .001 |
Notes. ASI = Addiction Severity Index. CM = contingency management. Values are means and standard deviations unless otherwise noted.