Table 4.

Logistic regression analysis between optimal PEEP and outcomes.

Variables	Univariate odds ratio (95% CI)	P value	Multivariate odds ratio (95% CI)	P value
Primary Outcome
RV dysfunction-post-cannulation	0.06 (0.01–0.27)	0.0008	0.07 (0.004–0.47)	0.02
Secondary Outcomes
Survival to decannulation	3.39 (1.23–9.79)	0.02	2.86 (0.75–12.06)	0.13
Survival to discharge	2.02 (0.75–5.58)	0.17	1.94 (0.50–8.13)	0.34
Barotrauma on ECMO	0.49 (0.14–1.62)	0.24	0.86 (0.20–3.52)	0.84

In multivariate analysis, the following factors were considered: age, history of hypertension, history of diabetes, admission to hospital after 7/1/2021 (when most patients were infected with the Delta variant). PEEP = positive end-expiratory pressure, CI = confidence interval, RV = right ventricular ICU = intensive care unit, ECMO extracorporeal membrane oxygenation. Bold values are those with a significant p value.