Evaluation of neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio in Turkish patients with chronic plaque psoriasis

Introduction: This study evaluates the relationship between disease activity and neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in patients with chronic plaque psoriasis. Methods: Clinical and biochemical data were retrieved through retrospective examination of patients' and healthy subjects' medical records. NLR and PLR values were calculated from the hemogram results. This study included 46 patients (25 males, 21 females; 36.58 +/- 9.82 years) diagnosed with chronic plaque psoriasis and a control group of 46 healthy volunteers (21 males, 25 females; 34.02 +/- 8.41 years). Results: NLR and PLR were significantly elevated in patients with chronic plaque psoriasis (p = 0.0001 and p = 0.003, respectively). PASI was positively correlated with NLR, PLR, and serum CRP levels (r = 0.313, p = 0.034; r = 0.394, p = 0.017; r = 0.359, p = 0.014, respectively). Conclusion: NLR and PLR are low-cost tests that can be used to determine the severity of current systemic inflammation in patients with chronic plaque psoriasis.