TABLE 2.
Characteristics | Overalln = 384 (100%) | Prone to Supinen = 219 (57%) | Supine to pronen = 165 (43%) | P |
Positioning duration, min | 14.5 (6.3) | 12.7 (5.0) | 17 (6.9) | <0.001 |
Pplat before PP, cm of water | 22.9 (4.5) | 22.8 (4.6) | 23 (4.5) | 0.136 |
Pplat after PP, cm of water | 23.1 (4.2) | 22.6 (4.0) | 23.7 (4.4) | 0.004 |
FiO2 before PP, % | 69.5 (24.8) | 66.5 (26.3) | 73.7 (22.1) | 0.001 |
SpO2 before PP, % | 96 (2.9) | 96.3 (2.7) | 95.4 (3) | 0.009 |
SpO2 after PP, % | 97.3 (4.1) | 97.4 (4.7) | 97.2 (3.0) | 0.221 |
Positioning procedure-related complications, n (%) | 34 (8.8) | 17 (7.8) | 17 (10.3) | 0.385 |
Respiratory or hemodynamic instability | 16 (4.1) | 7 (3.2) | 9 (5.4) | |
Pressure sores | 11 (2.9) | 8 (3.6) | 3 (1.8) | |
Nonscheduled extubation | 5 (1.3) | 2 (0.9) | 3 (1.8) | |
Removal of intravenous or intra-arterial lines | 2 (0.5) | 0 (0) | 2 (1.2) |
Continuous variables are reported as mean (standard deviation) unless otherwise specified.
FiO2 indicates fraction of inspired oxygen; Pplat, end-inspiratory plateau pressure of the respiratory system; SpO2, pulsed blood oxygen saturation level.