Table 4.
Logistic regression for hospital mortality, by adherence to low PEEP/FIO2 table.
| Independent variable | Odds ratio | 95% CI | P-value |
|---|---|---|---|
| Adherence to PEEP/FIO2 table | |||
| PEEP lower than recommended | 2.99 | 0.59–15.2 | 0.187 |
| PEEP as recommended | Reference | Reference | Reference |
| PEEP higher than recommended | 4.51 | 1.68–12.2 | 0.003 |
| Age (years) | 1.01 | 0.99–1.04 | 0.295 |
| APACHE II score | 1.08 | 1.03–1.13 | 0.003 |
| Initial P/F ratio (mmHg) | 1.00 | 0.99–1.01 | 0.882 |
| Initial systolic blood pressure (mmHg) | 0.98 | 0.97–0.99 | 0.024 |
APACHE Acute Physiology and Chronic Health Evaluation, FIO2 Inspired oxygen fraction, PEEP Positive end-expiratory pressure, P/F ratio Ratio of arterial oxygen partial pressure to inspired oxygen fraction.