Tracheostomy | No tracheostomy | Standardized differences of mean | |
---|---|---|---|
Number (%) or mean ± sd | Number (%) or mean ± sd | ||
Number | 267 | 267 | |
Age | 58.4 ± 16.6 | 58.9 ± 17.9 | 0.03 |
Sex (male) | 171 (64.0) | 171 (64.0) | 0.00 |
BMI | 27.9 ± 7.8 | 27.9 ± 15.0 | 0.00 |
Geographic area | |||
European countries with high income | 174 (64.2) | 172 (64.4) | 0.02 |
Non-European countries with high income | 49 (18.4) | 48 (18.0) | 0.01 |
Countries with middle income | 44 (16.5) | 47 (17.6) | 0.03 |
Type of admission | |||
Medical | 178 (66.7) | 183 (68.5) | 0.04 |
Surgical | 52 (19.5) | 48 (18.0) | 0.04 |
Elective | 19 (7.1) | 21 (7.9) | 0.03 |
Trauma | 18 (6.7) | 15 (5.6) | 0.05 |
Comorbidities | |||
COPD or home ventilation | 60 (22.5) | 65 (24.3) | 0.04 |
Diabetes mellitus | 64 (23.9) | 64 (23.9) | 0.00 |
Chronic renal failure | 27 (10.1) | 23 (8.6) | 0.05 |
Immunosuppression or active or hematologic neoplasm | 66 (24.7) | 62 (23.3) | 0.04 |
Heart failure (NYHA classes III-IV) | 19 (7.1) | 22 (8.2) | 0.04 |
Chronic liver failure (Child-Pugh Class C) | 2 (0.7) | 2 (0.7) | 0.00 |
Cause of AHRF - pneumonia | 186 (69.7) | 195 (73.0) | 0.07 |
ARDS risk factor | |||
No risk factor | 17 (6.4) | 17 (6.4) | 0.00 |
Only indirect risks factor | 45 (16.9) | 39 (14.6) | 0.06 |
Only direct risk factors | 168 (62.9) | 173 (65.0) | 0.04 |
Both risk factors | 37 (13.9) | 38 (14.2) | 0.01 |
ECMO use | 19 (7.1) | 16 (6.0) | 0.05 |
Arterial gas | |||
pH | 7.4 ± 0.1 | 7.4 ± 0.1 | 0.07 |
P/F ratio (mmHg) | 204.1 ± 86.5 | 199.1 ± 63.7 | 0.07 |
PaCO2 (mmHg) | 44.4 ± 13.9 | 44.2 ± 14.1 | 0.01 |
Non-respiratory SOFA score adjusted for missing values, | 5.1 ± 3.4 | 5.1 ± 3.6 | 0.00 |