Prolonged ICU Stay in Severe and Critically-Ill COVID-19 Patients Who Received Convalescent Plasma Therapy

Table 4

Multivariate analysis on factors confounding prolonged ICU length of stay.

	aOR^1	95% CI	-value
Convalescent plasma	3.88	1.77–8.55	0.001
Age	1.32	0.62–2.78	0.467
Hypertension	2.14	1.05–4.35	0.036
Mechanical ventilation during ICU stay	1.55	0.77–3.15	0.219
WBC^2 count	1.68	0.86–3.31	0.131
PaO2 to FiO2 ratio	1.81	3.27–4.24	0.173

¹Reference group of this regression modeling was length of stay of 7 days or more. ²WBC: White blood cells.