CYP2B6 and psychiatric disorder: Adjusted analyses showed that significant correlates for nonresponders were HCV coinfection (adjusted odds ratio, AOR  =  6.42, P  =  0.03), psychiatric diseases (AOR  =  2.71, P = 0.02), alcohol problems (AOR  = 2.25, P = 0.02), and CYP2B6 A785G (AOR  = 1.74, P = 0.10).