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ORIGINAL ARTICLE
Year : 2020  |  Volume : 16  |  Issue : 4  |  Page : 909-916

Prognostic value of the neutrophil-to-lymphocyte ratio and carbohydrate antigen 19-9 in estimating survival in patients with metastatic pancreatic cancer


1 Department of Biostatistics, Faculty of Medicine, Tokat Gaziosmanpasa University, Tokat, Turkey
2 Department of Medical Oncology, Faculty of Medicine, Mustafa Kemal University, Hatay, Turkey

Correspondence Address:
Sirin Cetin
Faculty of Medicine, Department of Biostatistics, Tokat Gaziosmanpasa University, Tokat
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_366_19

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Background: The predictive value of different prognostic biomarkers has been studied in various cancer types. Aims and Objectives: The purpose of this study was to examine the degree of risk and prognostic significance of pretreatment neutrophil-to-lymphocyte ratio (NLR) and carbohydrate antigen (CA) 19-9 levels in patients with metastatic pancreatic cancer (PC) and reveal its relevance with survival. Materials and Methods: Clinical and laboratory data of 118 patients with metastatic PC at the time of diagnosis were retrospectively analyzed. The overall survival (OS) was estimated according to the Kaplan–Meier method. To determine the prognostic factors affecting PC, the Cox regression analysis was performed. Results: The average age of the patients was 67 ± 9.57 years. The patients were analyzed during the follow-up period, and their average OS was 12 months (95% confidence interval [CI] = 9.73–14.26). The cutoff value was 3.54 (area under the curve [AUC] = 0.653, 95% CI = 0.56–0.73, P = 0.006) for NLR and 437 (AUC = 0.670, 95% CI = 0.57–0.75, P = 0.002) for CA19-9. Statistically significant difference was found between CA19-9 (P < 000.1) and NLR (P < 000.1) and OS. Analysis of multivariate Cox regression showed that NLR (hazard ratio [HR] = 2.17, 95% CI = 1.17–4.03, P = 0.013) and CA19-9 (HR = 1.81, 95% CI = 1.08–3.03, P = 0.022) were important prognostic factors in OS analysis. Conclusion: Pretreatment NLR and CA19-9 levels were found to be reliable estimative markers for poor prognosis in patients with metastatic PC. Our findings revealed that NLR and CA19-9 levels can be used to estimate the survival of patients with PC. We believe that our findings will shed light on the management of treatment protocols for patients diagnosed with metastatic PC.


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