The Importance of Radiological Patterns and Small Airway Disease in Long-Term Follow-Up of Postacute COVID-19: A Preliminary Study

Table 2

Correlation of several variables with the extent of CXR impairment.

Variable	Extent of CXR impairment				-value
	Moderate/severe		Normal/mild
	n	%	n	%
Age (median)
<62 years	7	38.9	7	63.6	0.20
≥62 years	11	61.1	4	36.4
Gender
Masculine	7	38.9	3	27.3	0.41
Feminine	11	61.1	8	72.7
Skin color
White	7	38.9	4	36.4	0.60
Brown/black	11	61.1	7	63.6
Disease severity (acute phase)
Mild	2	11.1	6	54.5	0.017
Moderate/severe	16	88.9	4	36.4
Hospitalization
Yes	14	77.8	4	36.4	0.033
No	4	22.2	7	63.6
Comorbidities
Yes	12	66.7	11	100	0.039
No	6	33.3	0	0
Spirometry
Normal	8	44.4	8	72.7	0.13
Restrictive/obstructive	10	55.6	3	27.3

Chi-square or Fischer’s exact test. CXR = chest radiograph.