TABLE 1—
Characteristic | Intervention Group, (n = 244), No. (%) or Mean ±SD | Control Group, (n = 245), No. (%) or Mean ±SD | Pa |
Male gender | 167 (68.4) | 167 (68.2) | .95 |
Race/ethnicity | .76 | ||
White | 88 (36.1) | 88 (35.9) | |
Hispanic | 78 (32.0) | 70 (28.6) | |
African American | 67 (27.5) | 77 (31.4) | |
Other | 11 (4.5) | 10 (4.1) | |
High school education or above | 127 (52.1) | 142 (58.0) | .19 |
Married | 42 (17.2) | 37 (15.1) | .53 |
Homeless past 6 mo | 101 (41.4) | 98 (40.0) | .75 |
Employed | 39 (16.0) | 39 (15.9) | .98 |
Yearly income < $10 000 | 156 (63.9) | 142 (58.0) | .18 |
Injection drug use (ever) | 177 (72.5) | 166 (67.8) | .25 |
Immune to hepatitis A | 136 (55.7) | 136 (55.5) | .78 |
Hepatitis B status | |||
Susceptible | 80 (32.8) | 77 (31.4) | .75 |
Chronic antigen | 3 (1.2) | 3 (1.2) | .99 |
Immune, vaccination | 39 (16.0) | 44 (18.0) | .56 |
Immune, disease | 73 (29.9) | 72 (29.4) | .9 |
Isolated core | 34 (13.9) | 32 (13.1) | .78 |
Hepatitis C antibody positive | 149 (61.1) | 137 (55.9) | .45 |
HIV infected | 28 (11.7) | 22 (9.1) | .35 |
Age, y | 44.7 ±10.3 | 45.0 ±9.8 | .48 |
Heroin use, y | 15.2 ±10.8 | 14.9 ±10.5 | .73 |
Methadone dose, mg | 89.6 ±39.5 | 89.8 ±43.3 | .97 |
No. of d alcohol used in past 30 d | 4.5 ±8.6 | 6.1 ±10.2 | .07 |
Addiction Severity Index | |||
Alcohol use | 0.10 ±0.17 | 0.12 ±0.21 | .19 |
Drug use | 0.25 ±0.11 | 0.25 ±0.11 | .88 |
Psychiatric | 0.34 ±0.24 | 0.33 ±0.24 | .56 |
Beck Depression Inventory-II (BDI II) depression severity total scores | 18.8 ±11.50 | 18.70 ±10.80 | .87 |
Persons with BDI II depression severity scores ≥ 20 | 116 (47.5) | 113 (46.1) | .75 |
SF-12 Physical Component Summary | 44.2 ±11.2 | 43.4 ±11.7 | .45 |
SF-12 Mental Component Summary | 38.6 ±12.3 | 40.6 ±13.4 | .08 |
Note. Addiction Severity Index composite scores in each domain range from 0 (no problems) to 1 (severe problems). In Beck Depression Inventory II, higher scores indicate more severe depression: minimal = 0–13; mild = 14–19; moderate = 20–28; severe = 29–63. The SF-12 Health Survey (SF-12), Physical Component Summary and Mental Component Summary scores have a range of 0 to 100 and were designed to have a mean score of 50 and a standard deviation of 10 in a representative sample of the US population. Scores greater than 50 represent above-average health status.
Differences in proportions evaluated by Pearson χ2 (2-tailed) and means by t test.