Visualizing the dynamic mechanical power and time burden of mechanical ventilation patients: an analysis of the MIMIC-IV database

Table 3 Multivariate analysis of the risk factors of mortality

	Univariate analysis			Multivariate analysis
	Hazard ratio	95% CI	p value	Hazard ratio	95% CI	p value
Age	1.02	1.02–1.02	< 0.001	1.02	1.02–1.03	< 0.001
Gender	1.13	1.03–1.24	0.009	1.31	1.19–1.44	< 0.001
SOFA score	1.07	1.06–1.08	< 0.001	1.02	1–1.03	0.080
SAPS-II score	1.02	1.02–1.03	< 0.001	1.01	1.01–1.02	< 0.001
Averaged dynamic mechanical power	1.04	1.03–1.05	< 0.001	1.06	1.05–1.07	< 0.001
Congestive heart failure	1.17	1.06–1.28	0.001
Cerebrovascular disease	1.44	1.29–1.59	< 0.001	1.68	1.51–1.87	< 0.001
Chronic pulmonary disease	1.04	0.94–1.15	0.442
Diabetes	1.11	0.95–1.28	0.181
Renal disease	1.33	1.2–1.47	< 0.001
Malignant cancer	1.46	1.29–1.65	< 0.001	1.31	1.15–1.49	< 0.001
Severe liver disease	1.63	1.43–1.86	< 0.001	1.91	1.65–2.21	< 0.001

CI confidence interval, SAPS-II simplified acute physiology score-II, SOFA sequential organ failure assessment

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