Research Article

De Ritis Ratio (Aspartate Transaminase/Alanine Transaminase) as a Significant Prognostic Factor in Patients Undergoing Radical Cystectomy with Bladder Urothelial Carcinoma: A Propensity Score-Matched Study

Table 3

Multivariate Cox proportional hazards analyses of AST/ALT ratio on overall survival, cancer-specific survival, and recurrence-free survival after propensity score matching.

VariablesOverall survivalCancer-specific survivalRecurrence-free survival
HR (95% CI) valueHR (95% CI) valueHR (95% CI) value

Age1.03 (1.01-1.04)<0.0011.02 (0.99-1.03)0.0921.00 (0.99-1.02)0.876
BMI0.92 (0.87-0.96)<0.0010.94 (0.88-0.99)0.0340.97 (0.92-1.02)0.299
Tumor size1.09 (1.05-1.15)<0.0011.11 (1.05-1.17)<0.0011.09 (1.04-1.14)0.001
High tumor grade1.51 (1.04-2.18)0.0181.70 (1.13-2.55)0.0101.37 (0.95-1.98)0.093
≥pT2 stage5.36 (2.12-13.51)<0.0016.99 (3.00-16.28)<0.00113.47 (4.25-42.65)<0.001
≥N1 stage1.36 (1.05-1.75)0.0181.35 (1.05-1.74)0.0181.60 (1.25-2.06)0.002
≥M1 stage1.27 (0.74-2.18)0.3941.71 (0.98-3.00)0.0602.10 (1.23-3.60)0.007
NACH0.51 (0.35-0.75)0.0010.45 (0.29-0.69)<0.0010.47 (0.32-0.67)<0.001
AST/ALT ratio
AST/ALT ≤1.1ReferenceReferenceReferenceReferenceReferenceReference
AST/ALT >1.11.57 (1.20-2.06)0.0011.76 (1.26-2.48)0.0011.53 (1.15-2.05)0.004

BMI: body mass index; NACH: neoadjuvant chemotherapy; ALT: alanine aminotransferase; AST: aspartate aminotransferase.