Table 2. Predictive power of AEC for ACO.

Cut-off value	OR (95% CI)	P value	Sensitivity (%)	Specificity (%)	P value
AEC ≥200	1.580 (1.150-2.170)	0.005	51.4	59.9	0.015
AEC ≥250	1.448 (1.046-2.004)	0.026	49.6	41.1	0.068
AEC ≥300	1.313 (0.925-1.866)	0.128	29.3	76.0	0.254
AEC ≥500	1.284 (0.786-2.100)	0.318	12.2	90.3	0.602

AEC, absolute eosinophil count; ACO, asthma-chronic obstructive pulmonary disease overlap; OR, odds ratio; CI, confidence interval.