Table 3.

Univariate and multivariate associations of obesity (BMI ≥ 25 kg/m²) with (a) in-hospital mortality and (b) with VV-ECMO.

Variables	Univariate	p value	Multivariate	p value
	OR (95% CI)		OR (95% CI)
(a) In-hospital mortality
Obese	0.634 (0.417–0.965)	0.033	1.150 (0.717–1.840)	0.564
Age	–		1.090 (1.070–1.120)	< 0.001
Male sex	–		1.180 (0.685–2.040)	0.546
CCI	–		1.140 (0.908–1.440)	0.253
(b) With VV-ECMO
Obese	1.530 (0.960–2.420)	0.074	1.110 (0.669–1.830)	0.695
Age	–		0.962 (0.945–0.980)	< 0.001
Male sex	–		1.030 (0.564–1.890)	0.920
CCI	–		0.705 (0.516–0.963)	0.027

Multivariate regression model was adjusted with age, male sex, and CCI.

BMI body mass index, OR odds ratio, CI confidence interval, CCI Charlson Comorbidity Index, VV-ECMO venovenous extracorporeal membrane oxygenation.