Table 1.
Demographic and clinical characteristics of participants.
| Group | Female | Male | |
|---|---|---|---|
| N | 47 (100%) | 24 (51%) | 23 (49%) |
| Age (years) | 28.94 ± 7.47 | 28.25 ± 8.54 | 29.65 ± 6.26 |
| Race | |||
| Caucasian | 41 (87%) | 22 (92%) | 19 (83%) |
| African American | 3 (6%) | 1 (4%) | 2 (9%) |
| Asian | 3 (6%) | 1 (4%) | 2 (9%) |
| Duration of heroin use (years) | 5.22 ± 6.53 | 6.30 ± 8.57 | 4.07 ± 3.21 |
| Duration of prescription opioid use (years) | 4.27 ± 3.27 | 3.41 ±3.18 | 5.00 ±3.24 |
| Route of opioid use | |||
| Heroin (IV) | 35 (74%) | 20 (83%) | 15 (65%) |
| Heroin (intranasal, IN) | 2 (4%) | 1 (4%) | 1 (4%) |
| Pill (oral, PO) | 5 (11%) | 1 (4%) | 4 (17%) |
| Pill (IN) | 6 (13%) | 2 ( 8%) | 4 (17%) |
| Average daily use (bags heroin) | 6.51 ± 8.07 | 6.24 ± 7.84 | 6.82 ±8.51 |
| Average daily use (mg oxycodone equivalents) | 10.47 ± 25.29 | 14.43 ± 29.35 | 6.12 ± 19.75 |
| Abstinence before XRNTX injection (days) | 15.08 ± 17.07 | 11.19 ± 16.47 | 17.78 ±17.32 |
| Other drug use in the last 30 days | |||
| Cocaine | 5.67 ± 11.82 | 6.54 ± 13.97 | 4.68 ± 8.98 |
| Amphetamines | 0 | 0 | 0 |
| Benzodiazepines | 1.81 ± 4.11 | 2.51 ± 5.27 | 1.01 ± 1.97 |
| Marijuana | 25.62 ± 74.82 | 34.46 ± 91.30 | 15.45 ± 50.18 |
| Alcohol | 1.63 ± 3.27 | 1.49 ± 3.34 | 1.80 ± 3.27 |
| Tobacco | 14.47 ± 9.08 | 16.45 ± 10.62 | 12.28 ± 6.61 |