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Supplementary Table S2 from Preoperative Neutrophil-to-Lymphocyte Ratio and a New Inflammatory Biomarkers Prognostic Index for Primary Retroperitoneal Sarcomas: Retrospective Monocentric Study

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posted on 2023-04-01, 00:22 authored by Marco Fiore, Silva Ljevar, Sandro Pasquali, Daniele Morelli, Dario Callegaro, Roberta Sanfilippo, Marta Barisella, Claudia Sangalli, Rosalba Miceli, Alessandro Gronchi

Supplemental Table 2. Prognostic Index of Inflammatory Biomarkers for primary Retroperitoneal Sarcoma (IBPI)

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5x1000 Funds 2016, Italian Ministry of Health - Institutional grant

Ministero della Salute (Ministry of Health, Italy)

Regione Lombardia

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ARTICLE ABSTRACT

Inflammatory biomarkers and neutrophil-to-lymphocyte ratio (NLR) are associated with prognosis in several tumors. Data on sarcomas are limited, and insufficient on retroperitoneal sarcoma (RPS). Patients with primary RPS operated between 2002 and 2016 were included. Hemoglobin, monocytes, NLR, platelet-to-lymphocyte ratio (PLR) were retrieved and analyzed both individually and combined into a prognostic index (IBPI). Correlation with clinicopathologic variables was studied, as well as postoperative morbidity according to NLR and IBPI risk categories. The association between overall survival (OS) and biomarkers and, in addition, the 7-year Sarculator-predicted OS probability (pOS) was analyzed using univariable and multivariable Cox models. 423/463 patients had complete data. The median follow-up was 84 months. The median NLR was 3.3 (IQR, 2.4–4.7), with significant variation across histologies. NLR was the only biomarker that independently predicted OS (HR, 1.2; 95% CI, 1.03–1.40; P = 0.02). The IBPI showed good discrimination for subgroups at different OS (log-rank test P < 0.0001). The Cox model for pOS alone showed a 7-year index of prediction accuracy of 26.9, which increased to 29.5 when IBPI was added to pOS as a complementary prognostic tool. IBPI was also associated with the risk of serious infectious postoperative complications (P = 0.0094; noninfectious complications, P = 0.6463). NLR was an independent prognostic factor for OS in RPS. When combined into a prognostic index with hemoglobin, monocytes, and PLR, it serves as a readily available prognostic tool addressing tumor-related inflammation and helps in classifying RPS risk in addition to the Sarculator nomogram.

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