Fig. 4From: Time-varying intensity of oxygen exposure is associated with mortality in critically ill patients with mechanical ventilationThe direct effect and indirect effect of high FiO2 on 28-day mortality over time using the additive hazards model. A Direct effect of high FiO2 on 28-day mortality over time; B Indirect effect (mediated by hyperoxemia) of high FiO2 on 28-day mortality over time; C Total effect of high FiO2 on 28-day mortality over timeBack to article page