Table 5. Radiographic features of the study groups
	Asthma	COPD	Overlap	p
Chest X-ray
Hyperinflation	18 (9.2%)	72 (61%)	33 (38.8%)	<0.001
Bronchiectasis	9 (4.6%)	13 (11%)	10 (11.8%)	0.046
Hilar enlargement	11 (5.6%)	31 (26.3%)	16 (18.8%)	<0.001
Computed Tomography of the Thorax
Emphysema	4 (9.5%)	37 (75.5%)	26 (70.3%)	<0.001
Bullae	7 (16.7%)	12 (24.5%)	9 (24.3%)	>0.05
Pulmonary artery enlargement	0 (0%)	12 (24.5%)	6 (16.2%)	0.003
Bronchial wall thickening	4 (9.55)	26 (53.1%)	13 (35.1%)	<0.001
Mosaic perfusion	7 (16.7%)	3 (6.1%)	3 (8.1%)	>0.05
Bronchiectasis	9 (29%)	19 (44.2%)	13 (38.2%)	>0.05