• Eur. J. Cancer · Jun 2014

    Neutrophil/lymphocyte ratio as a prognostic factor in biliary tract cancer.

    • M G McNamara, A J Templeton, M Maganti, T Walter, A M Horgan, L McKeever, T Min, E Amir, and J J Knox.
    • Department of Medical Oncology, Princess Margaret Cancer Centre, 610 University Avenue, Toronto, Ontario M5G 2M9, Canada.
    • Eur. J. Cancer. 2014 Jun 1;50(9):1581-9.

    BackgroundBiliary tract cancers (BTCs) include intrahepatic (IHC), hilar, distal bile duct (DBD) and gallbladder carcinoma (GBC). Neutrophil/lymphocyte ratio (NLR), a marker of host inflammation, is prognostic in several cancers but has not been reviewed in large BTC series, or advanced BTC (ABTC) at diagnosis.Patients And MethodsBaseline demographics and NLR at diagnosis were retrospectively evaluated in 864 consecutive patients with BTC treated from January 1987 to December 2012. The association between NLR and overall survival (OS) was determined using a multivariable Cox proportional hazards model.ResultsEight hundred and sixty-four patients were included in the analysis, of which 62% had ABTC and 38% had surgery with curative intent. Median age was 65 years, 444 (51%) were male and 727 (84%) had performance status (PS) ⩽ 2. A NLR ⩾ 3.0, PS >2, IHC primary, stage, lack of surgery, haemoglobin <110 g/L and albumin <40 g/L were associated with significantly worse OS on multivariable analysis. A NLR ⩾ 3.0 was an independent prognostic factor for OS for the entire cohort; median OS was 21.6 months versus 12.0 months for patients with NLR <3.0 versus NLR ⩾ 3.0 respectively (adjusted hazard ratio (HR)-1.26, 95% confidence interval (CI); 1.06-1.50, P = 0.01). NLR was also prognostic in patients with ABTC (HR-1.26, 95% CI; 1.02-1.56, P = 0.035) and hilar cancer: overall group (N = 149) (HR-1.70, 95% CI; 1.10-2.50, P = 0.01) and advanced group (N = 111) (HR-1.57, 95% CI; 1.04-2.44, P = 0.048).ConclusionBaseline NLR is a readily available and inexpensive prognostic biomarker in patients with BTC and likely warrants validation in large prospective clinical trials.Copyright © 2014 Elsevier Ltd. All rights reserved.

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