GSTM1 and tuberculosis: Consistent with GSTT1 polymorphisms, we also observed the significant association between GSTM1/GSTT1 dual null polymorphisms and an increased risk of ATDILI in TB patients who carried CYP2E1 wild type (adjusted OR = 3.44; 95% CI, 1.01 to 11.71; P = 0.048).