Table 1.
Patient baseline characteristics.
| Characteristic | XR-NTX n = 126 |
Placebo n = 124 |
Total N = 250 |
|---|---|---|---|
| Mean age, years (SD) | 29.4 (4.8) | 29.7 (3.6) | 29.0 (4.8) |
| Male, n (%) | 113 (89.7) | 107 (86.3) | 220 (88.0) |
| White | 124 (98.4) | 124 (100.0) | 248 (99.2) |
| Opioids used within 30 days of baseline, n (%) | |||
| Heroin | 111 (88.1) | 110 (88.7) | 221 (88.4) |
| Methadonea | 11 (8.7) | 18 (14.6) | 29 (11.6) |
| Prescription Opioidsb | 21 (16.8) | 12 (9.8) | 33 (13.3) |
| Mean duration of opioid dependence, years (SD) | 9.1 (4.5) | 10.0 (3.9) | 9.6 (4.2) |
SD = standard deviation; XR-NTX = extended-release naltrexone.
a
XR-NTX, n = 126; placebo, n = 123.
b
XR-NTX, n = 125; placebo, n = 123.