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Systemic inflammation response index predicts prognosis in patients with clear cell renal cell carcinoma: a propensity score-matched analysis

Authors Chen Z, Wang K, Lu H, Xue D, Fan M, Zhuang Q, Yin S, He X, Xu R

Received 9 September 2018

Accepted for publication 28 November 2018

Published 18 January 2019 Volume 2019:11 Pages 909—919


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Chien-Feng Li

Zhen Chen,* Kai Wang,* Hao Lu, Dong Xue, Min Fan, Qianfeng Zhuang, Shuai Yin, Xiaozhou He, Renfang Xu

Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, People’s Republic of China

*These authors contributed equally to this work

Purpose: In the present study, we aimed to evaluate the prognostic significance of the systemic inflammation response index (SIRI), which was defined based on peripheral blood counts of neutrophils, lymphocytes, and monocytes, in patients with localized or locally advanced clear cell renal cell carcinoma (CCRCC).
Patients and methods: The prognostic value of SIRI was evaluated in a primary cohort consisting of 414 patients with localized or locally advanced CCRCC and then further validated in an independent cohort composed of 168 patients.
Results: Kaplan–Meier survival analyses of both cohorts revealed that CCRCC patients with high SIRI levels exhibited poorer overall survival (OS) and cancer-specific survival (CSS) compared with those with low SIRI levels. Furthermore, univariate and multivariate analyses identified SIRI as a significant independent predictor for both OS (HR: 4.853; 95% CI: 2.362–9.972; P<0.001) and CSS (HR: 5.913; 95% CI: 2.681–13.040; P<0.001). Following propensity score matching analysis, SIRI remained an excellent predictor for both OS and CSS. The area under the curve for SIRI was larger than that of the platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), and Memorial Sloan Kettering Cancer Center (MSKCC) prognostic score in both cohorts.
Conclusion: SIRI might be a better prognostic predictor than PLR, NLR, MLR, and MSKCC score in patients with localized or locally advanced CCRCC.
Institutional review board approval number: (2010) Scientific Research Project No. 39

Keywords: systemic inflammation response index, prognosis, clear cell renal cell carcinoma, PSM

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