[Retracted] The Investigation of Pulmonary Function Changes of COVID-19 Patients in Three Months

Table 2

Pulmonary function characteristics of COVID-19 patients.

Pulmonary dysfunction	On the day of discharge			Three months after discharge
	All (N  = 56)	Severe (N  = 15)	Nonsevere (N  = 41)	All (N  = 56)	Severe (N  = 15)	Nonsevere (N  = 41)
Ventilation dysfunction	22 (39.3%)	8 (53.3%)	14 (34.1%)	10 (17.9%)	4 (26.7%)	6 (14.6%)
Mild ventilation dysfunction	15 (26.8%)	5 (33.3%)	10 (24.4%)	5 (8.9%)	2 (13.3%)	3 (7.3%)
Moderate ventilation dysfunction	7 (12.5%)	3 (20%)	4 (9.7%)	5 (8.9%)	2 (13.3%)	33 (7.3%)
Small airway dysfunction	31 (55.4%)	9 (60%)	22 (53.7%)	24 (42.9%)	7 (46.7%)	17 (41.5%）
Ventilation dysfunction with small airway dysfunction	16 (28.6%)	6 (40%)	10 (24.4%)	10 (17.9%)	4 (26.7%)	6 (14.6%)
Disseminated dysfunction				29 (51.8%)	10 (66.7%)	19 (46.3%)