Table 3.

Sensitivity, specificity, and the values of the area under the curve with 95% confidence interval

Cut-offs	Sensitivity	Specificity	AUC (95% CI)	p value
Log periostin ≥ 1.71 ng/mL	0.875	0.423	0.696 (0.563–0.829)	0.007
Log EDN ≥ 1.61 ng/mL	0.850	0.462	0.655 (0.514–0.796)	0.035
Log periostin ≥ 1.74 ng/mL and log EDN ≥ 1.61 ng/mL	0.760	0.643	0.701 (0.577–0.826)	0.004a

A p values are calculated using logistic regression analysis.

AUC, area under the curve; CI, confidence interval; EDN, eosinophil-derived neurotoxin.

^aValues are adjusted by age, sex, and smoking status.