Table 2.
Urinalysis, Workplace, and HIV-risk Behavior Outcomes
| Abstinence and Work (n=16) |
Work Only (n=15) |
No Vouchers (n=15) |
P | OR (95% CI) | |
|---|---|---|---|---|---|
| Urinalysis Outcomesa | |||||
| Urinalysis Samples Provided (%) | 58 | 76 | 64 | 0.51 | 0.79 (0.25 - 2.51) |
| Opiate-negative Urinalysis (%) | |||||
| Intake | 7 | 14 | 7 | 0.78 | -- |
| Interventionb | 45 | 31 | 42 | 0.63 | 0.57 (0.17- 1.90) |
| 12-month follow-up | 62 | 33 | 27 | 0.99 | -- |
| Cocaine-negative Urinalysis (%) | |||||
| Intake | 7 | 20 | 0 | 0.16 | -- |
| Interventionb | 52 | 27 | 42 | 0.22 | 0.36 (0.11 - 1.15) |
| 12-month follow-up | 50 | 40 | 47 | 0.85 | -- |
| Opiate and Cocaine-negative Urinalysis (%) | |||||
| Intake | 0 | 7 | 0 | 0.37 | -- |
| Interventionb | 42 | 24 | 36 | 0.39 | 0.44 (0.13- 1.49) |
| 12-month follow-up | 50 | 20 | 27 | 0.17 | -- |
| Workplace Outcomes | |||||
| Days Attended Workplace (%) | 12 | 27 | 5 | 0.02‡ | 6.45 (1.41-29.32) |
| HIV-related Risk Behaviors | |||||
| Injected drugs (%) | |||||
| Intake | 100 | 100 | 92 | 0.29 | |
| Intervention | 54 | 74 | 49 | 0.14 | 0.49 (0.13- 1.30) |
| 12-month follow-up | 40 | 69 | 44 | 0.31 | |
| Shared needles (%) | |||||
| Intake | 27 | 13 | 25 | 0.63 | |
| Intervention | 12 | 1 | 3 | 0.72 | 1.00 (0.07- 14.92) |
| 12-month follow-up | 0 | 0 | 0 | 0.99 | |
| Used condoms (%) | |||||
| Intake | 6 | 13 | 0 | 0.35 | |
| Intervention | 7 | 18 | 1 | 0.06‡ | 0.35 (0.10 - 1.26) |
| 12-month follow-up | 0 | 23 | 0 | 0.09 |
a
= Missing samples have been interpolated
b
= Intervention data based on thrice-weekly testing
‡
= Significant difference between Work Only and No Voucher groups