Journal
WORLD JOURNAL OF SURGICAL ONCOLOGY
Volume 14, Issue -, Pages -Publisher
BIOMED CENTRAL LTD
DOI: 10.1186/s12957-016-0904-7
Keywords
Blood cells; Inflammation; Neoplasms; Palliative care; Prognosis
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Background: Determining prognosis in advanced cancer is of key importance. Various prognostic scores have been developed. However, they are often very complex. In this study, we evaluated the feasibility of neutrophil/lymphocyte ratio (NLR) as an index to estimate survival in terminal cancer patients. Methods: NLR was calculated retrospectively based on blood tests performed at 3 months, 2 months, 4 weeks, 3 weeks, 2 weeks, 1 week, and within 3 days before death in 160 cancer patients (82 men, 78 women; age range, 33-99 years; mean age, 69.8 years). Results: NLR increased significantly with time (P < 0.0001). Mean NLR was significantly higher in patients who died within 4 weeks (29.82) than in those who lived more than 4 weeks (6.15). The NLR cutoff point was set at 9. 21 according to receiver operating characteristic curve analysis (area under the curve, 0.82; 95 % confidence interval, 0.79-0.85). We inferred that life expectancy would be <4 weeks when NLR >9.21. The sensitivity, specificity, positive predictive value, and negative predictive value were 65.6, 84.1, 90.6, and 51.1 %, respectively. The positive and negative likelihood ratios were 4.125 and 0.409, respectively. Conclusions: NLR appears to be a useful and simple parameter to predict the clinical outcomes of patients with terminal cancer.
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