Table 2.
Characteristics of patients
| Characteristics | Group I (n=56) Mean±SD |
Group II (n=44) Mean±SD |
p |
|---|---|---|---|
|
| |||
| Age | 52.7±13 | 64.2±9 | 0.0001 |
| Gender (female/male) | 24 F/32 M | 15 F/29 M | 0.2 |
| LIS (AHS) | 2.6±0.1 | 2.7±0.1 | 0.001 |
| APACHE II | 25±5 | 37±5 | 0.0001 |
| GCS | 7.3±0.9 | 6.4±1.3 | 0.001 |
| SOFA | 12.5±4.4 | 14.9±3.5 | 0.003 |
| Length of stay in the ICU (day) | 26±11 | 49±16 | 0.0001 |
| Duration of mechanical ventilation (day) | 13±8 | 23±7 | 0.0001 |
| Mechanical ventilation application | |||
| PEEP | 11.6±1.6 | 12.4±1.4 | 0.01 |
| Frequency | 19±4 | 20±4 | 0.01 |
| pH | 7.27±0.8 | 7.25±0.7 | 0.1 |
| PaO2 (mmHg) | 74±15 | 64±11 | 0.002 |
| CO2 (mmHg) | 47±10 | 58±15 | 0.0001 |
| HCO3 (mmol L−1) | 18±4 | 19±5 | 0.2 |
| PaO2/FiO2 (mmHg) | 141±19 | 122±22 | 0.0001 |
LIS: Lung Injury Score; AHS: Acute Lung Injury; APACHE II: Acute Physiologic Assessment and Chronic Health Evaluation II score; GCS: Glasgow Coma Score; SOFA: Sequential Organ Failure Assessment score; ICU: intensive care unit; PEEP: positive end-expiratory pressure; PaO2: partial pressure of arterial oxygen; FiO2: fraction of inspired oxygen; CO2: carbon dioxide; HCO3: bicarbonate