Table 3.
Relative risk ratios of buprenorphine initiation compared to methadone (n=314).
| Buprenorphine |
||
|---|---|---|
| Adjusted RRR (95% CI) | p-value | |
| Sex (ref = Male) | ||
| Female | 0.77 (0.37, 1.57) | 0.47 |
| Age (years) | 1.01 (0.98, 1.05) | 0.57 |
| Race (ref = White) | ||
| Non-White | 3.89 (1.55, 9.70) | 0.004 |
| SUD criteria (ref = no disorder) | ||
| Cocaine use disorder | 0.49 (0.23, 1.04) | 0.06 |
| Alcohol use disorder | 1.53 (0.64, 3.68) | 0.34 |
| Drug use behavior | ||
| Days of heroin/street opioid use (past 30) | 0.95 (0.90, 1.00) | 0.06 |
| Days of NMPO use (past 30) | 0.88 (0.80, 0.96) | 0.006 |
| Injection drug use (ref= no) | 0.55 (0.22, 1.35) | 0.19 |
| Previous methadone treatment (ref= no) | 0.68 (0.33, 1.40) | 0.30 |
| Previous buprenorphine treatment (ref= no) | 2.57 (1.27, 5.20) | 0.009 |
| Homelessness (ref= no) | 1.46 (0.67, 3.19) | 0.34 |
Note: Reference group is methadone initiation. RRR=Relative Risk Ratio, 95% CI=95% Confidence Interval, NMPO=Non-medical prescription opioid.