TABLE 5.

Functional residual capacity (FRC) and expiratory reserve volume (ERV) measured using whole-body plethysmography at 6 months after hospital discharge in patients requiring veno-venous extracorporeal membrane oxygenation in the acute phase of severe coronavirus disease 2019 (Group COVID) and healthy matched healthy controls (Group H).

		Group H	Group COVID	p
FRC	Absolute value (liters)	3.22 ± 0.71	2.21 ± 0.30	<0.001
	% predicted	99.2 ± 15.6	73.0 ± 9.4	<0.001
ERV	Absolute value (liters)	1.33 ± 0.54	0.87 ± 0.28	0.01
	% predicted	104.0 ± 30.1	66.9 ± 211	0.002

Data were reported as absolute values and percent predicted. Bold values: statistically significant difference.