Table 2.

Multiple linear regression analysis for Dl _CO percentage estimation after COVID-19 admission

Variables	Estimate*	SE	95% CI	P Value
Age	−0.07	0.1	−0.27 to 0.12	0.455
Male sex	7.64	2.49	2.73 to 12.55	0.002
Former or current smoking	−5.06	2.62	−10.22 to 0.11	0.055
Chronic respiratory disease	1.91	3.64	−5.26 to 9.08	0.599
Log peak CRP	0.131	2.85	−5.49 to 5.75	0.964
Log peak D-dimer	−7.20	2.80	−12.72 to −1.69	0.011
ICU admission	−6.26	4.09	−14.32 to 1.81	0.128

Definition of abbreviations: CI = confidence interval; COVID-19 = coronavirus disease; CRP = C-reactive protein; Dl _CO = diffusing capacity of the lung for carbon monoxide; ICU = intensive care unit; SE = standard error.

^*Estimated percentage point change in Dl _CO.