Table 1.
Demographic and clinical characteristics
| Characteristics | Total (n = 163) | Successful weaning (n = 78) | Failure to wean (n = 85) | P |
| Age | 70.3 ± 15.1 | 68.6 ± 15.4 | 71.8 ± 14.8 | 0.2 |
| Sex (male/female) | 93/70 | 49/29 | 44/41 | 0.2 |
| APACHE II score | 20.0 ± 7.2 | 19.6 ± 7.1 | 21.3 ± 7.6 | 0.1 |
| Comorbid conditions | ||||
| Hypertension | 63 (38.7%) | 34 (43.6%) | 29 (34.1%) | 0.3 |
| Diabetes mellitus | 50 (30.7%) | 27 (34.6%) | 23 (27.1%) | 0.3 |
| COPD | 34 (20.9%) | 12 (15.4%) | 22 (25.9%) | 0.1 |
| Malignancy | 34 (20.9%) | 14 (17.9%) | 20 (23.5%) | 0.4 |
| Congestive heart failure | 32 (19.6%) | 19 (24.4%) | 13 (15.3%) | 0.2 |
| Renal insufficiency | 32 (19.6%) | 15 (19.2%) | 17 (20.0%) | 1.0 |
| Stroke | 25 (15.3%) | 16 (20.5%) | 9 (10.6%) | 0.09 |
| Autoimmune disease | 12 (7.4%) | 5 (6.4%) | 7 (8.2%) | 0.8 |
| Cancer metastatic to lung | 8 (4.9%) | 1 (0.01%) | 7 (4.5%) | 0.07 |
Shown are demographic data for 163 critically ill patients who underwent tracheostomy, and differences between patients who weaned successfully and those who failed to wean. APACHE, Acute Physiology and Chronic Health Evaluation; COPD, chronic obstructive pulmonary disease.