Figure 2. Sepsis risk based on cardiorespiratory predictors, on and off invasive mechanical ventilation.

Associations of predictors in each univariate logistic regression model for times (A) off-ventilator and (B) on-ventilator. Brady count is the number of bradycardia events per day; IH is intermittent hypoxemia; DPE is duration per event in seconds; PB is periodic breathing exposure in minutes per day. The rate of sepsis per day for times on-ventilator are 0.0188 and for times off-ventilator 0.0036. The major findings are increased sepsis risk when cardiorespiratory measures are increased.