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 | Â | Â | Â | Â |
   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 |