Research Article

Association of Upon-Diagnosis Blood Eosinophilic Count with Frequency and Severity of Annual Exacerbation in Chronic Obstructive Pulmonary Disease: A Prospective Longitudinal Analysis

Figure 4

Predictive value of serum eosinophilic count for the annual COPD exacerbation ≥1 episode using area under receiver operating curve (AUROC). COPD = chronic obstructive pulmonary disease.