Journal
JOURNAL OF GASTROINTESTINAL CANCER
Volume 51, Issue 3, Pages 868-876Publisher
SPRINGER
DOI: 10.1007/s12029-019-00316-8
Keywords
Pancreatic cancer; Inflammation; Healthcare disparities; Prognostic factors; Chemotherapy
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Purpose The neutrophil-to-lymphocyte ratio (NLR) is associated with decreased overall survival in patients with pancreatic adenocarcinoma (PAC) in studies including few minority patients. We investigated the association between NLR and survival in patients with advanced PAC in an ethnically diverse population. Methods We retrospectively evaluated 226 patients with advanced PAC treated at Montefiore Medical Center between 2006 and 2015. Adjusted Cox proportion hazard regression models were utilized to derive effect estimates for survival duration. Results Patients with a NLR <= 5 (126 patients, median age 66 years) were more likely to be non-Hispanic Black (30.8% vs. 20%), while patients with a NLR > 5 (70 patients, median age 66 years) were more likely to be non-Hispanic White (21.4% vs. 12.2%) or Hispanic (44.3% vs. 34%). A NLR > 5 compared with a NLR <= 5 was significantly associated with a worse overall survival when adjusted for a priori and exploratory variables from the univariate analysis (median survival 7.4 vs. 12 months, HR 1.650, 95% CI 1.139, 2.390). Conclusions In an ethnically diverse population, elevated NLR is an independent marker of poor prognosis and a potentially valuable factor in driving therapeutic decisions and defining prognosis for patients in the locally advanced or metastatic for PAC setting, meriting investigation in prospective clinical trials.
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