Table 3.

Independent predictors of day-28 mortality available within 24 h after ICU admission by multivariable logistic regression analysis in the 259 patients with Omicron or Delta infection

		aOR (CI95%)	p-value
Age, years		1.06 (1.03;1.09)	<0.0001
SOFA score		1.20 (1.07;1.34)	0.002
Chronic heart failure		4.47 (1.50;13.34)	0.007
Sex, females		0.83 (0.43;1.62)	0.585
Immunosuppression		1.60 (0.76;3.35)	0.213
Variant	Delta	1(ref)
	Omicron	0.68 (0.35;1.32)	0.253
SARS-CoV-2 vaccination		1.49 (0.73;3.04)	0.275

aOR (CI 95%): adjusted Odds Ratio (95% confidence interval).

SOFA Sequential Organ Failure Assessment.

p-values come from multivariable logistic regression models; Bolded p-values are significant at the p <  0.05 level.