Table 1. Demographic and clinical features.
| Variables | Total | Weaning results | P | |
|---|---|---|---|---|
| Success | Failure | |||
| Subjects | 62 | 54 | 8 | – |
| Age, years | 61.3±15.9 | 66.26±11.35 | 70.13±14.38 | 0.383 |
| Gender ratio M/F | 45/17 | 39/15 | 6/2 | 0.869 |
| APACHE II | 18.93±6.89 | 19.02±7.18 | 19.13±4.85 | 0.967 |
| MV, days | 34.05±39.17 | 31.09±32.55 | 56.00±72.85 | 0.145 |
| ICU stay, days | 28.94±27.36 | 36.46±45.16 | 46.71±41.04 | 0.568 |
| Hospital stay, days | 56.47±43.32 | 62.15±51.00 | 37.00±13.68 | 0.290 |
| Etiology, n (%) | 0.893 | |||
| Severe pneumonia | 21 (33.9) | 17 | 4 | |
| AECOPD | 21 (33.9) | 20 | 1 | |
| Septic shock | 2 (3.2) | 1 | 1 | |
| Major surgery | 16 (25.8) | 15 | 1 | |
| Multiple myositis | 2 (3.2) | 1 | 1 | |
M, male; F, female; MV, mechanical ventilation; ICU, intensive care unit; AECOPD, acute exacerbation of chronic obstructive pulmonary disease.