Table 2. Mean Maintenance Phase Measures.
Results of various study measures collected during the 3 PIO maintenance periods leading to laboratory testing.
| PIO 0 mg | PIO 15 mg | PIO 45 mg | |||
|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | F Value | Sig. | |
| I Want Rx Ops (0–100) | 6.4 (9.7) | 3.9 (8.6) | 4.2 (9.3) | 1.4 | 0.9 |
| I Want Marijuana | 12.8 (28.2) | 12.3 (21.1) | 9.4 (15.9) | 1.1 | 0.85 |
| I Want Alcohol | 5.1 (24.4) | 4.5 (12.5) | 3.3 (10.3) | 0.79 | 0.78 |
| I Want Tobacco | 11.9 (27.8) | 13.4 (23.0) | 9.5 (16.9) | 0.66 | 0.74 |
| # of Opioid + UTox b | 0.71 (0.88) | 1.1 (0.5) | 1.3 (0.8) | 0.74 | 0.47 |
| # of Cocaine + UTox b | 2.0 (1.9) | 3.6 (2.2) | 3.8 (1.9) | 0.32 | 0.22 |
| Plasma PIO c (ng/ml) | 0.0 (0.0) | 514 (257) | 1155 (514) | 9.65 | 0.001 |
a
Only positive samples for cocaine, opioids, oxycodone and THC were found. THC is unreported because the drug’s persistence in urine samples significantly confounds estimating separate positive samples.
b
Mean taken only from those participants who tested positive.
c
Obtained during the lab session following each maintenance/stabilization phase.