Table 5.

Multiple linear regression analysis of cardiac function and PEEP

Hypertension group (PEEP ≥4 cm H2O)	Model 1	Model 2	Model 3
ScvO2
Beta	−0.455	− 0.552	−0.592
P	< 0.001	< 0.001	< 0.001
HR
Beta	0.333	0.345	0.428
P	< 0.001	< 0.001	< 0.001

Model 1: Adjustment for age and gender; Model 2: Adjustment for age, gender, triglyceride, total cholesterol, low density lipoprotein cholesterin, fasting plasma glucose, serum creatinine and uric acid; Model 3: Adjustment for hemoglobin, body temperature, minute ventilation volume and peripheral oxygen saturation on the basis of Model 2

ScvO₂ Central venous oxygen saturation, HR Heart rate