Fig. 5From: Hemodynamic effects of supplemental oxygen versus air in simulated blood loss in healthy volunteers: a randomized, controlled, double-blind, crossover trialKaplan–Meier estimates of probability of hemodynamic stability with oxygen (blue) and air (red) representing tolerance to simulated blood loss. “Time” is the duration of the visit in minutes. Vertical lines show where LBNP was increased and LBNP 80 completedBack to article page