Table 3.
Multivariate analysis of odds of developing of acute respiratory distress syndrome
| Variable | Odds Ratioa | 95% Confidence Interval | p |
|---|---|---|---|
| Statin therapy | 0.69 | 0.51–0.92 | .01 |
| Age (per year) | 0.99 | 0.98–0.99 | <.01 |
| APACHE III (per point) | 1.01 | 1.01–1.02 | <.01 |
| Septic shock | 2.13 | 1.73–2.61 | <.01 |
| Pneumonia | 1.94 | 1.17–3.20 | .01 |
| Direct lung injury | 2.19 | 1.32–3.64 | <.01 |
| PRBC units transfused (per unit) | 1.04 | 1.02–1.06 | <.01 |
| Trauma | 1.44 | 0.93–2.22 | .10 |
| History of diabetes | 0.70 | 0.56–0.88 | <.01 |
| Serum total bilirubin (per mg/dL) | 1.04 | 1.01–1.07 | <.01 |
| Obesity (BMI >30) | 1.73 | 1.37–2.17 | <.01 |
| Morbid obesity (BMI >40) | 1.90 | 1.31–2.78 | <.01 |
APACHE, Acute Physiology and Chronic Health Evaluation; PRBC, packed red blood cell; BMI, body mass index.
a
Odds ratio for effect of each variable on risk of developing acute respiratory distress syndrome, as calculated in multivariate logistic regression model.