Abstract
Albumin-globulin ratio (AGR) has been reported as an independent risk factor for survival outcomes of a variety of malignancies. We aimed to further examine the prognostic value of AGR for urothelial carcinoma of bladder (UCB) using a propensity score-matched (PSM) analysis. The medical data of 189 high-grade UCB patients undergoing radical cystectomy were retrospectively reviewed. AGR was defined as the ratio of serum albumin to nonalbumins (serum total protein-albumin). The association of preoperative AGR with clinicopathologic characteristics and prognosis were assessed. Multivariate analyses using Cox regression models were applied to evaluate the independent prognostic factors. The receiver operating curve analysis indicated 1.55 as the optimal cutoff value to define low or high AGR. In prematched cohorts, Kaplan-Meier analysis indicated that AGR lower than 1.55 was associated with poorer overall survival (OS), progression-free survival (PFS), and tumor-specific survival (TSS) (P < 0.001 for all). Multivariable cox analyses also showed that AGR lower than 1.55 were an independent risk factor for survival outcomes, including OS, PFS, and TSS (P < 0.01 for all). In particular, AGR lower than 1.55 remained its prognostic value after PSM analysis. Low AGR was a significant unfavorable factor for UCB patients treated with radical cystectomy. This viable parameter should be enrolled in the pretreatment risk stratification for UCB.
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