| Control (n = 102) | DEX (n = 106) | p |
---|---|---|---|
Age (year) | 69.0 (65.0–76.0) | 69.0 (61.8–76.0) | 0.507 |
Gender (male), n. (%) | 79 (77.5%) | 84 (79.2%) | 0.753 |
ICU stay (day) | 15.0 (11.8–19.3) | 15.0 (12.0–19.0) | 0.557 |
Smoking history, n. (%) | 28 (27.5%) | 44 (41.5%) | 0.033 |
Comorbidity, n. (%) | Â | Â | Â |
 Hypertension | 42 (41.2%) | 42 (39.6%) | 0.819 |
 Diabetes | 24 (23.5%) | 19 (17.9%) | 0.318 |
 Coronary heart diseases | 16 (15.7%) | 13 (12.3%) | 0.476 |
 Bronchitis | 13 (12.7%) | 24 (22.6%) | 0.062 |
Primary diagnosis, n. (%) | Â | Â | Â |
 Pneumonia (non-viral) | 82 (80.4%) | 76 (72.4%) | 0.175 |
 Respiratory failure | 47 (46.1%) | 36 (34.0%) | 0.074 |
 AECOPD | 27 (26.5%) | 23 (21.7%) | 0.421 |
 Multiple trauma | 8 (7.8%) | 18 (17.0%) | 0.046 |
 Intracerebral hemorrhage | 2 (2.0%) | 4 (3.8%) | 0.714 |
Cause of ARDS, n. (%) | Â | Â | Â |
 Lung infection | 57 (55.9%) | 51 (48.1%) | 0.262 |
 Trauma | 26 (25.5%) | 25 (23.6%) | 0.749 |
 Surgery | 15 (14.7%) | 26 (24.5%) | 0.075 |
 Acute pancreatitis | 11 (10.8%) | 15 (14.2%) | 0.463 |
 Aspiration | 9 (8.8%) | 10 (9.4%) | 0.879 |