Table 1.
Demographics of patients enrolled in a study of the association between duration of mechanical ventilation in the emergency department and in-hospital mortality.
| Variable | Total (n=525) | Less than 7 hours (n=461) | More than 7 hours (n=64) | p value |
|---|---|---|---|---|
| Male patients n (%) | 313 (59.6) | 308 (66.9) | 36 (56.3) | 0.922 |
| Mean age (years [IQR]) | 55.6 [41.7–69.2] | 54.6 [41.5–67.8] | 63.5 [50.2–78.4] | <0.001 |
| Patients intubated in the ED n (%) | 320 (60.9) | 281 (61.0) | 37 (57.8) | 0.646 |
| Indication for intubation n (%) | ||||
| AMS | 201 (38.3) | 179 (38.8) | 22 (34.4) | 0.480 |
| Trauma | 122 (23.2) | 104 (22.6) | 18 (28.1) | 0.360 |
| Respiratory failure | 90 (17.1) | 79 (17.1) | 11 (17.2) | 0.998 |
| ICH or seizure | 51 (9.7) | 41 (8.9) | 10 (15.6) | 0.163 |
| Cardiac arrest | 34 (6.5) | 33 (7.2) | 1 (1.6) | 0.005 |
| Airway edema | 12 (2.3) | 12 (2.6) | 0 (0) | <0.001 |
| Other | 15 (2.9) | 13 (2.8) | 2 (3.1) | 0.824 |
| Management of ventilation in the ED | ||||
| Lung protective ventilation n (%) | 345(65.8) | 296 (64.3) | 49 (76.2) | 0.047 |
| Any ventilator changes while in ED n (%) | 115 (21.9) | 107 (23.2) | 8 (12.5) | 0.022 |
| Disposition n (%) | ||||
| Medical ICU | 277 (52.7) | 245 (53.2) | 31 (49.2) | 0.559 |
| Surgical trauma ICU | 124 (23.7) | 115 (24.9) | 9 (14.3) | 0.032 |
| Neuro ICU | 86 (16.3) | 66 (14.4) | 19 (30.2) | 0.011 |
| Cardiovascular ICU | 38 (7.3) | 34 (7.4) | 4 (6.3) | 0.744 |
ED, emergency department; ICU, intensive care unit; IQR, interquartile range; AMS, altered mental status; ICH, intracranial hemorrhage.