“…For example, a large national multi-center collaborative study found that the ASA classification significantly correlated with CSS after RNU for UTUC. In this study, the 5-year CSS differed significantly between ASA 1, 2, and 3 patients (83.8%, 76.9%, and 70.6%, respectively), and there was a threefold higher risk of OM and CSM at 5 years for patients rated as ASA 3 compared with ASA 1 (25). In a recent study by Aziz et al (26), 4 comorbidity indices (ASA-PS, CCI, ACCI, and ECOG-PS) were compared with regard to recurrence-free survival (RFS), CSS, OS, and CIM.…”