Table 1. Comparison of baseline characteristics by housing status during substance abuse treatment.
| Baseline variables | Did not access housing programs(n =299) | Accessed housing programs(n =56) | Statistic | p |
|---|---|---|---|---|
| Study, % (n) | χ(2) = 0.44 | .80 | ||
| Petry et al. (2004) | 30 (89) | 30 (17) | ||
| Petry et al. (2005) | 36 (109) | 32 (18) | ||
| Petry et al. (2006) | 34 (101) | 38 (21) | ||
| Treatment condition (%) | χ(1) = 0.52 | .47 | ||
| Standard care | 30 (89) | 25 (14) | ||
| Standard care + CM | 70 (210) | 75 (42) | ||
| Male, % (n) | 50 (149) | 50 (28) | χ(1) = 0.001 | .98 |
| Race, % (n) | χ(2) = 1.83 | .40 | ||
| African American | 55 (163) | 50 (28) | ||
| Caucasian | 34 (102) | 32 (18) | ||
| Other | 11 (34) | 18 (10) | ||
| Employment, % (n) | χ(4) = 16.93 | .002 | ||
| Full-time | 48 (145) | 21 (12) | ||
| Part-time | 21 (63) | 25 (14) | ||
| Unemployed | 23 (68) | 45 (25) | ||
| Disabled/retired | 5 (15) | 5 (3) | ||
| Other | 3 (8) | 4 (2) | ||
| Positive sample at intake, % (n) | 20 (58) | 16 (9) | χ(1) = 0.35 | .55 |
| Age | 37 (8) | 37 (7) | t(353) = -0.47 | .66 |
| Education (years) | 12 (1) | 11 (2) | t(62) = 1.33 | .19 |
| Past year earned income | $9,933 ($15,275) | $5,685 ($11,461) | t(96) = 2.40 | .02 |
| Lifetime years of | ||||
| alcohol use | 10 (11) | 12 (11) | t(353) = -1.54 | .13 |
| heroin use | 2 (7) | 2 (6) | t(353) = 0.07 | .94 |
| cocaine use | 11 (8) | 11 (7) | t(353) = 0.01 | .94 |
| Addiction Severity Index score | ||||
| Medical | 0.22 (0.33) | 0.27 (0.37) | t(353) = -1.01 | .32 |
| Employment | 0.71 (0.30) | 0.85 (0.22) | t(100) = -4.03 | <.001 |
| Alcohol | 0.23 (0.23) | 0.22 (0.18) | t(91) = 0.23 | .82 |
| Drug | 0.16 (0.09) | 0.15 (0.07) | t(353) = 1.19 | .24 |
| Legal | 0.13 (0.21) | 0.13 (0.20) | t(353) = -0.04 | .97 |
| Family/social | 0.18 (0.22) | 0.22 (0.24) | t(353) = -1.27 | .21 |
| Psychiatric | 0.26 (0.24) | 0.35 (0.24) | t(353) = -2.68 | .008 |
Notes. Values are means and standard deviations unless otherwise specified. Differences in degrees of freedom across baseline variables reflect use of tests adjusted for variance inequality. CM = contingency management.