Figure 2. Calculated unadjusted risk ratios for mortality in randomized trials in ARDS that had more than 50 deaths in at least one arm.
When multiple metrics were provided we focused in the follow-up that defined the primary mortality outcome. In the event that this was not available we considered the time point of the secondary outcome and if none available the longer follow-up time.
Abbreviations: CVP: central venous pressure, HFOV: high-frequency oscillatory ventilation, PAOP: pulmonary artery occlusion pressure, PEEP: positive end-expiratory pressure, PGE1: prostaglandin E1.