Left ventricular-arterial coupling is associated with prolonged mechanical ventilation in severe post-cardiac surgery patients: an observational study

Table 3 Multivariate logistic regression analysis for possible risk factors of prolonged mechanical ventilation

Variable	B	SE	Wald	P	OR	95% CI for OR Lower Upper
Multivariate
Age years	0.040	0.050	0.625	0.429	1.040	0.943	1.148
SOFA	0.012	0.361	0.001	0.974	1.012	0.498	2.055
T1 SBP mmHg	−0.083	0.039	4.495	0.034	0.921	0.853	0.994
T1 HR bpm	0.103	0.085	1.459	0.227	1.108	0.938	1.310
T1 CVP mmHg	−0.300	0.278	1.164	0.281	0.741	0.430	1.277
T1 CI L/min/m²	−1.771	1.788	0.982	0.322	0.170	0.005	5.657
T1 SVI ml/m²	0.196	0.183	1.150	0.284	1.216	0.850	1.739
T1 Ea/Ees	1.923	0.966	3.965	0.046	6.840	1.031	45.395
T1 Lac mmol/L	2.726	1.285	4.501	0.034	15.269	1.231	189.427

HR heart rate, SBP systolic blood pressure, CVP central venous pressure, CI cardiac output index, SVI stroke volume index, Ea/Ees ventricular arterial coupling, Lac lactate, T0 at admission, T1 48 h after admission

ISSN: 1471-2253