Effect of mechanical power on intensive care mortality in ARDS patients

Table 2 Predictive performance of ventilatory variables for Intensive care unit mortality

Variables	RR	95% CI	p
Tidal volume (mL)	0.14	0.03–0.77	*0.024*
Airway plateau pressure (cmH₂O)	1.04	1.00–1.08	*0.043*
Respiratory system elastance (cmH₂O/mL)	1.03	1.01–1.04	*0.001*
Lung elastance (cmH₂O/mL)	1.01	1.00–1.03	*0.025*
Chest wall elastance (cmH₂O/mL)	1.00	0.93–0.96	0.926
MP (J/min)	1.01	0.99–1.03	0.342
MP_PBW (J/min/Kg)	2.69	0.75–9.57	0.127
MP_C_RS (J/min/mL/cmH₂O)	1.88	1.21–2.92	*0.005*
MP_well-inflated tissue (J/min/g)	3.60	1.19–10.87	*0.023*
MP_lung gas volume (J/min/mL)	1.01	0.99–1.02	0.167
Transpulmonary MP_PBW (J/min/kg)	1.91	0.55–6.67	0.305
Transpulmonary MP_C_RS (J/min/mL/cmH₂O)	1.01	0.99–1.02	0.195
Transpulmonary MP_well-inflated tissue (J/min/g)	3.91	1.12–13.61	*0.032*
Transpulmonary MP_lung total gas (J/min/mL)	1.01	0.99–1.01	0.190
Driving pressure (cmH₂O)	1.04	1.00–1.08	*0.045*

Risk ratios (RR) and 95% confidence intervals (CI) of intensive care unit (ICU) mortality calculated with univariate Poisson regression with robust standard error
MP mechanical power, PBW predicted body weight, C_RS respiratory system compliance
Italicized data are for statistically significant results

ISSN: 1364-8535