The Neutrophil to Lymphocyte Ratio Is Superior to Other Inflammation-Based Prognostic Scores in Predicting the Mortality of Patients with Pneumonia

A neutrophil-to-lymphocyte ratio (NLR) > 7 is reportedly an independent marker of mortality in patients with bacteremia. However, no studies have shown an association between inflammation-based prognostic scores (including the Glasgow Prognostic Score, the NLR, the platelet-to-lymphocyte ratio, the Prognostic Nutritional Index, and the Prognostic Index) and mortality in patients with pneumonia. We retrospectively examined the cases of 33 patients diagnosed with pneumonia who were treated in the ICU of Osaka Medical College Hospital between January 2014 and June 2016. A multivariate analysis revealed that the NLR was a significant predictor of mortality in these pneumonia patients.