Figure 3.

Early oxygenation (PaO₂/FiO₂) in SIMV + PS success and failure. Early (≤72 h) oxygenation (PaO₂/FiO₂) at each time point in groups of SIMV + PS success and failure were compared. Solid line in black represented oxygenation (mean ± SD) in SIMV + PS success group, while dashed line in black represented oxygenation (mean ± SD) in SIMV + PS failure group. SIMV + PS success vs. failure: *, 2 h, P=0.018; **, 12 h, P=0.243; ^§, 24 h, P=0.182; ^†, 36 h, P=0.025; ^††, 48 h, P=0.132; ^‡, 72 h, P=0.086. PaO₂, partial pressure of arterial oxygen; FiO₂, fraction of inspired oxygen; SIMV, synchronized intermittent mandatory ventilation; PS, pressure supportive.