Systemic immune-inflammation index (SII) is a useful prognostic indicator for patients with squamous cell carcinoma of the esophagus

Ji-Feng Feng, Sheng Chen, Xun Yang
Medicine (Baltimore) 2017, 96 (4): e5886
The aim of the study was to determine the prognostic role of systemic immune-inflammation index (SII) in patients with esophageal squamous cell carcinoma (ESCC).A total of 298 ESCC patients were enrolled in the current retrospective study. The SII was calculated by the formula: neutrophil × platelet/lymphocyte. The optimal cut-off value was calculated by the Cutoff Finder. Univariate and multivariate analyses were evaluated for cancer-specific survival (CSS). Additional, we also established a nomogram model to predict the prognosis for patients with ESCC.The optimal cut-off value was 410 × 10/L for SII. Patients with SII ≤ 410 (×10/L) had a significantly better 5-year CSS than patients with SII > 410 (×10/L) (51.9% vs 24.0%, P < 0.001). Multivariate analyses revealed that SII was a significant independent predictive indicator (P = 0.027). A nomogram could be more accuracy for CSS for patients with ESCC (c-index: 0.68).The SII is a useful independent prognostic indicator for patients with resectable ESCC.

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