Blood eosinophil variability in patients presenting with acute exacerbations of COPD within the past year and its correlation with treatment plan

Background Chronic obstructive pulmonary disease (COPD) is an acknowledged contributor to universal fatality and morbidity. Using biomarkers to pinpoint its phenotypes is crucial, enabling individualized treatment and enhancing prognosis. Objective Studying the steadiness of blood eosinophi1s in cases who experienced repeated hospital admissions for acute worsening of COPD during a year and its correlation to the treatment plan. Methods A retrospective cohort study includes 270 COPD male patients with acute exacerbations. The patients were divided into three groups: fluctuating (ranges between ≥ 150 cells/ul and