Table 2.
Summary of multivariable regression results
| Continued opioid use | OR | 95 % CI | p value |
|---|---|---|---|
| Age: year | 1.00 | 0.966, 1.038 | 0.928 |
| Sex: male | 0.64 | 0.349, 1.178 | 0.152 |
| Ethnicity: European | 1.83 | 0.715, 4.697 | 0.207 |
| Age of initial opioid use: year | 1.02 | 0.986, 1.060 | 0.235 |
| Methadone dose: milligram | 0.99 | 0.983, 0.998 | 0.016 |
| Duration on treatment: month | 1.00 | 0.987, 1.005 | 0.364 |
| Total number of opioid screens | 1.01 | 0.997, 1.024 | 0.148 |
| BDNF rs6265: allele (A) | 1.37 | 0.792, 2.371 | 0.260 |
| DRD2 rs1799978: allele (G) | 1.28 | 0.511, 3.182 | 0.603 |
LR χ2(7) = 20.23, Prob > χ2 = 0.0165, Psuedo R2 = 0.0728, Log likelihood = −128.822
BDNF brain-derived neurotrophic factor, DRD2 dopamine receptor D2, OR odds ratio, CI confidence interval