Twenty-four-hour mechanical power variation rate is associated with mortality among critically ill patients with acute respiratory failure: a retrospective cohort study

Table 2 Univariate and multivariate logistic regression analysis for ICU mortality

Variables	Univariate logistic regression		Multivariate logistic regression*
Variables	Odds ratio (95% CI)	p	Odds ratio (95% CI)	p
Baseline MP > 10 J/min (n = 602)
Baseline MP	1.077 (1.027–1.128)	0.002	–	0.909
MP variation rate (per 10% increase)	0.884 (0.818–0.955)	0.002	0.906 (0.833–0.985)	0.021
24-h MP	1.115 (1.063–1.170)	< 0.001	–	0.059
Baseline MP > 15 J/min (n = 107)
Baseline MP	0.923 (0.800–1.064)	0.270	–	0.234
MP variation rate (per 10% increase)	0.735 (0.605–0.892)	0.002	0.722 (0.584–0.892)	0.003
24-h MP	1.086 (1.001–1.178)	0.048	–	0.210

^*The odds ratio and 95% confidence intervals (CI) for each variable were calculated after multivariable adjustment for age, sex, Acute Physiology and Chronic Health Evaluation II score, admission type, PaO₂/FiO₂ ratio and ventilatory ratio on admission, prone positioning and neuromuscular blocking agent treatments within 24 h

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