Table 3. Multivariate regression analyses of the methadone dose and S-EDDP/methadone dose ratio.
Methadone dose (mg/day) (n = 335) | S-EDDP/Methadone dose Ratio (n = 331) | |||||||
SE | P-value | VIF | SE | P-value | VIF | |||
HCV Ab (+/−) | 14.13 | 6.49 | 0.030 | 1.01 | −0.40 | 0.13 | 0.002 | 1.01 |
Age (years) | −0.79 | 0.20 | 0.0001 | 1.05 | 0.002 | 0.004 | 0.609 | 1.06 |
BMI (kgw/m2) | 0.88 | 0.42 | 0.036 | 1.02 | −0.002 | 0.008 | 0.817 | 1.02 |
AST(U/L) | 0.098 | 0.052 | 0.061 | 4.14 | −0.0006 | 0.001 | 0.532 | 4.13 |
ALT(U/L) | −0.071 | 0.039 | 0.067 | 4.05 | 0.0003 | 0.001 | 0.719 | 4.05 |
HCV Ab, hepatitis C virus antibody; , regression coefficient; SE, standard error of regression coefficient; VIF, variance inflation factor.