C-reactive protein-albumin ratio as a prognostic factor in renal cell carcinoma - A data from multi-institutional study in Japan.

INTRODUCTION

The C-reactive protein to albumin ratio (CAR) has been shown to provide prognostic information in several cancers. The objective in the study is to examine the prognostic value of CAR in patients with RCC who underwent nephrectomy.

MATERIAL AND METHODS

The record data from multi-institutional study of 1,028 patients was analyzed in the study. The cut-off value of the CAR was defined by receive operating characteristic (ROC) analysis. Overall survival (OS), cancer-specific survival (CSS), and recurrence-free survival (RFS) were evaluated, and univariate and multivariate analyses were conducted to assess the predictive value of the variables including CAR.

RESULT

The optimal cut-off value of 0.073 in CAR was defined according to the ROC analysis. The AUC in CAR for CSS was greater than that of NLR and PLR, and that for RFS was also greater than GPS and mGPS. Multivariate analysis demonstrated that the CAR was an independent prognostic factor for OS (P < 0.001), CSS (P < 0.001) in total cohort and RFS (P = 0.029) in nonmetastatic cohort.

CONCLUSION

The findings of the present study suggested that the preoperative CAR is an independent prognostic indicator of OS, CSS and RFS for patients with RCC. Since CAR can be assessed prior to surgery, clinicians should this take into account for the treatment decision making.