Table 2.
Demographic information on 52 patients requiring prolonged mechanical ventilation
| Characteristic | Total sample (%) N = 52 |
Not weaned (%) N = 27 |
Weaned (%) N = 25 |
P valuea |
|---|---|---|---|---|
| Age, y | 57.9 ± 15.7 | 61.7 ± 15.2 | 55.5 ± 15.7 | NS |
| Gender | NS | |||
| Male | 23 (44.2) | 14 (51.8) | 9 (36.0) | |
| Female | 29 (55.8) | 13 (48.1) | 16 (64.0) | |
| Race | NS | |||
| African-American | 29 (55.8) | 14 (51.8) | 15 (60.0) | |
| Caucasian | 22 (42.3) | 12 (44.4) | 10 (40.0) | |
| Asian | 1 (1.9) | 1 (3.7) | 0 | |
| Causes for respiratory failure | NS | |||
| Neurologic/cerebrovascular | 21 (40.4) | 13 (48.1) | 8 (32.0) | |
| Trauma/surgical | 15 (28.8) | 7 (25.9) | 8 (32.0) | |
| Sepsis | 9 (17.3) | 3 (11.1) | 6 (24.0) | |
| COPD | 6 (11.5) | 2 (7.4) | 4 (16.0) | |
| Cardiac | 3 (5.8) | 2 (7.4) | 1 (4.0) | |
| Neuromuscular/chest wall | 3 (5.8) | 1 (3.7) | 2 (8.0) | |
| ARDS | 1 (1.9) | 1 (3.7) | 0 | |
| Morbid obesity/hypoventilation/OSA | 1 (1.9) | 0 | 1 (4.0) |
ARDS, acute respiratory distress syndrome; COPD, chronic obstructive pulmonary disease; NS, not significant; OSA, obstructive sleep apnea.
a
P values obtained using comparison of proportions or Student t test when appropriate.