Table 3.

Multivariable-adjust ORs and 95%CI of the elastic power quartiles associated with moderate-severe ARDS

Variables	Unadjusted		Model 1		Model 2		Model 3
	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value
EP (J/min)	1.21 (1.15–1.28)	< 0.001	1.21 (1.15–1.28)	< 0.001	1.20 (1.14–1.28)	< 0.001	1.20 (1.13–1.27)	0.001
Q1 (≤ 13.2)	1 (Ref)		1 (Ref)		1 (Ref)		1 (Ref)
Q2 (13.2–16.5)	3.73 (2.05–6.80)	< 0.001	3.75 (2.03–6.96)	< 0.001	3.58 (1.92–6.65)	< 0.001	3.57 (1.89–6.75)	0.001
Q3 (16.5–22.5)	5.37 (2.85–10.13)	< 0.001	5.20 (2.69–10.08)	< 0.001	4.85 (2.48–9.47)	< 0.001	4.98 (2.52–9.86)	0.021
Q4 (≥ 22.5)	16.71 (7.05–39.58)	< 0.001	15.88 (6.52–38.65)	< 0.001	14.09 (5.72–34.72)	< 0.001	14.12 (5.69–35.07)	0.016
Trend test	2.44 (1.92–3.12)	< 0.001	2.39 (1.85–3.09)	< 0.001	2.30 (1.77–2.98)	< 0.001	2.31 (1.77–3.01)	0.009

OR odds ratio, CI confidence interval, EP elastic power, Ref reference

Q1, Q2, Q3, and Q4 are quartiles of the EP

Model 1 was adjusted for age and BMI

Model 2 was adjusted for Model 1 + SOFA score

Model 3 was adjusted for Model 2 + MBP, and PCO₂