Table 2.
Demographic and Baseline Characteristics by History of Sex Trade
| Variable | No history of sex trade | History of sex trade | Statistical test (df), p |
|---|---|---|---|
| N | 278 | 215 | |
| Study, n (%) | χ2(5) = 4.43, .49 | ||
| Petry et al. (2012) Positive | 45 (16.2) | 24 (11.2) | |
| Petry et al. (2012) Negative | 97 (34.9) | 79 (36.7) | |
| Petry et al. (2011) | 43 (15.5) | 29 (13.5) | |
| Petry et al. (2006) | 25 (9.0) | 19 (8.8) | |
| Petry et al. (2005) | 34 (12.2) | 36 (16.7) | |
| Petry et al. (2004) | 34 (12.2) | 28 (13.0) | |
| Treatment group, n (%) | χ2 (1) = 0.02, .90 | ||
| Contingency management | 186 (66.9) | 145 (67.4) | |
| Standard care | 92 (33.1) | 70 (32.6) | |
| Hispanic, n (%) | 38 (13.7) | 22 (10.2) | χ2 (1) = 1.34, .25 |
| Race/ethnicity, n (%) | χ2 (2) = 17.33, <.001 | ||
| African American | 105 (37.8) | 121 (56.3) | |
| Caucasian | 138 (49.6) | 71 (33.0) | |
| Other | 35 (12.6) | 23 (10.7) | |
| Age | 34.22 ± 8.73 | 36.20 ± 7.05 | t (491) = −2.73, .001 |
| Marital Status, n (%) | χ2 (3) = 2.28, .52 | ||
| Never married | 153 (55.0) | 128 (59.5) | |
| Married/live with partner | 44 (15.8) | 26 (12.1) | |
| Separated/divorced | 71 (25.5) | 56 (26.0) | |
| Widowed | 10 (3.6) | 5 (2.3) | |
| Years of education | 12.07 ± 2.02 | 11.31 ± 1.91 | t (490) = 4.22, <.001 |
| Employment, n (%) | χ2 (3) = 17.24, .001 | ||
| Full time | 95 (34.2) | 51 (23.7) | |
| Part time | 81 (29.1) | 45 (20.9) | |
| Unemployed | 81 (29.1) | 97 (45.1) | |
| Not in workforce | 21 (7.6) | 22 (10.2) | |
| Earned annual income ($) | $6,427 ± 10,388 | $3,802 ± 12,796 | t (490) = 2.51, .01 |
| HIV status, n (%)a | χ2 (2) = 13.20, .001 | ||
| Negative | 115 (86.5) | 88 (80.0) | |
| Positive | 2 (1.5) | 14 (12.7) | |
| Never tested | 16 (12.0) | 8 (7.3) | |
| DSM-IV past-year diagnosis, n (%) | |||
| Opioid use disorder | 80 (28.9) | 61 (28.5) | χ2 (1) = 0.01, .93 |
| Alcohol use disorder | 156 (56.1) | 131 (60.9) | χ2 (1) = 1.16, .28 |
| Drug positive sample, n (%) | 79 (28.4) | 52 (24.3) | χ2 (1) = 1.05, .31 |
| Alcohol Severity Index Scores | |||
| Medical | 0.25 ± 0.36 | 0.28 ± 0.37 | t (491) = −0.90, .37 |
| Employment | 0.72 ± 0.27 | 0.85 ± 0.22 | t (491) = −5.84, <.001 |
| Alcohol | 0.19 ± 0.24 | 0.19 ± 0.23 | t (491) = −0.16, .88 |
| Drug use | 0.17 ± 0.09 | 0.18 ± 0.09 | t (491) = −0.75, .46 |
| Legal | 0.12 ± 0.20 | 0.13 ± 0.20 | t (490) = −0.58, .56 |
| Family/social | 0.21 ± 0.24 | 0.19 ± 0.23 | t (490) = 0.75, .46 |
| Psychological | 0.32 ± 0.25 | 0.32 ± 0.23 | t (489) = −0.11, .91 |
Notes. DSM-IV = Diagnostic and Statistical Manual for Mental Disorders, HIV = Human Immunodeficiency Virus. Values are means and standard deviations unless otherwise indicated.
a
HIV status was not assessed in all studies, so the sample size is reduced for this variable.