A Follow-Up Study of Lung Function and Chest Computed Tomography at 6 Months after Discharge in Patients with Coronavirus Disease 2019

Table 3

Comparison of pulmonary function between moderate and severe patient groups.

	Moderate (n = 31)	Severe (n = 22)	t
TLC (%)	97.8 ± 11.8	99.5 ± 11.7	−0.525	0.602
FVC (%)	97.8 ± 11.8	99.5 ± 11.7	−0.525	0.602
FEV1 (%)	96.6 ± 13.5	98.5 ± 11.5	−0.547	0.587
FEV1/VCMAX%	102.6 ± 6.7	103.2 ± 4.1	−0.435	0.665
FEF50 (%)	89.1 ± 22.9	90.2 ± 19.2	−1.77	0.86
FEF75 (%)	70.9 ± 29.8	73.9 ± 21.3	−0.405	0.687
MMEF (%)	82.1 ± 23.5	83.7 ± 17.0	−0.255	0.800
DLCO-SB (%)	83.7 ± 11.2	85.1 ± 12.1	−0.425	0.673

DLCO-SB, diffusing capacity for carbon monoxide corrected for hemoglobin; FEF50, maximum expiratory flow at 50% FVC; FEF75, maximum expiratory flow at 75% FVC; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; MMEF, maximum midexpiratory flow; TLC, total lung capacity; VCMAX%, maximum vital capacity percentage.