Neutrophil-to-lymphocyte Ratio: A Biomarker for Predicting Systemic Involvement in Henoch-Schonlein Purpura.

Background: Henoch-Schonlein purpura (HSP) is one of the commonest entities included within the category of cutaneous vasculitis (CV). Our work is purposed to explore the predictive value of neutrophil-to-lymphocyte ratio (NLR) for systemic involvement in Henoch- Schonlein purpura patients. This ratio is known as an inflammatory marker, and is used to assess the systemic inflammation associated with various diseases.