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Table 3 Variables influencing MAP.

From: The effects of the semirecumbent position on hemodynamic status in patients on invasive mechanical ventilation: prospective randomized multivariable analysis

  Bivariable modela
P value
Multivariable modelb
P value
HBE <0.001 <0.001
   SAPS II 0.023 n.s.
   Norepinephrine (μg/kg/min) 0.012 n.s.
Norepinephrine*HBE 0.005 0.005
   Ventilation mode <0.001 <0.001
   Sedation sufentanil (μg/kg/min) 0.027 n.s.
   Sedation propofol (mg/kg/min) 0.034 n.s.
  1. aAll bivariable models include HBE as a factor.
  2. bThe multivariable model contains all variables with a P value < 0.1.
  3. HBE, head of bed elevation; n.s., not significant; SAPS II, Simplified Acute Physiology Score.