Predictors for development of ARDS on multivariate analysis
| OR (95% CI) | p Value | |
| Age (per SD) | 0.75 (0.66 to 0.84) | <0.0001 |
| Female | 1.11 (0.88 to 1.39) | 0.4 |
| Apache III score* (per SD increase) | 1.26 (1.10 to 1.44) | 0.0009 |
| Diabetes | 0.62 (0.46 to 0.83) | 0.001 |
| Clinical risk for ARDS | ||
| Septic shock | 1.70 (1.33 to 2.18) | <0.0001 |
| Direct pulmonary injury | 3.29 (2.57 to 4.21) | <0.0001 |
| Haematological failure (platelets <80×109/l) | 1.59 (1.17 to 2.17) | 0.003 |
| Transfusion of red blood cells | 1.47 (1.16 to 1.85) | 0.001 |
| Intubated on ICU admission | 2.44 (1.84 to 3.25) | <0.0001 |
| Peak plasma glucose in first 24 h after ICU admission (per unit increase) | 1.08 (0.78 to 1.49) | 0.7 |
| Body mass index (per SD increase) | 1.24 (1.11 to 1.39) | 0.0001 |
*APACHE III score calculated without the PaO2/FiO2 score.
APACHE, Acute Physiology and Chronic Health Evaluation; ARDS, acute respiratory distress syndrome; ICU, intensive care unit.