Table 2.
Distributions of different types of mechanical ventilation in patients with acute respiratory failure
| Variables | No |
INV-only, % |
NIV-only, % |
NIV/INV, % |
P Value |
|---|---|---|---|---|---|
| Total | 6,621 | 84.6 | 6.8 | 8.6 | |
| Sex | < 0.001 | ||||
| Men | 4,177 | 85.9 | 5.7 | 8.4 | |
| Women | 2,444 | 82.4 | 8.6 | 9.0 | |
| Age | < 0.001 | ||||
| < 65 years | 2,917 | 88.9 | 4.8 | 6.3 | |
| ≥ 65 years | 3,704 | 81.3 | 8.3 | 10.4 | |
| Surgical condition | < 0.001 | ||||
| Yes | 3,594 | 87.5 | 3.5 | 9.0 | |
| No | 3,027 | 81.2 | 10.6 | 8.1 | |
| Charlson Comorbidity index | < 0.001 | ||||
| 0 | 2,158 | 88.3 | 4.4 | 7.3 | |
| 1 | 2,076 | 83.9 | 7.0 | 9.1 | |
| 2 | 1,258 | 81.4 | 9.6 | 9.0 | |
| 3+ | 1,129 | 82.4 | 7.7 | 9.9 | |
| Comorbid conditions | |||||
| COPD | < 0.001 | ||||
| Yes | 533 | 66.2 | 16.7 | 17.1 | |
| No | 6088 | 86.2 | 5.9 | 7.9 | |
| Congestive heart failure | < 0.001 | ||||
| Yes | 573 | 74.9 | 12.2 | 12.9 | |
| No | 6,048 | 85.5 | 6.3 | 8.2 | |
| Cerebrovascular disease | < 0.001 | ||||
| Yes | 1,118 | 89.6 | 3.2 | 7.2 | |
| No | 5,503 | 83.6 | 7.5 | 8.9 | |
| Cancer | 0.001 | ||||
| Yes | 946 | 82.2 | 9.5 | 8.2 | |
| No | 5,675 | 85.0 | 6.3 | 8.7 | |
| Principal diagnoses | < 0.001 | ||||
| Respiratory | 1,395 | 76.3 | 12.4 | 11.3 | |
| Non-respiratory | 5,220 | 86.9 | 5.2 | 7.9 | |
| No. of organ dysfunction | 0.011 | ||||
| 1 | 5,173 | 83.8 | 7.5 | 8.7 | |
| 2 | 1,198 | 86.9 | 4.5 | 8.6 | |
| 3+ | 250 | 90.4 | 2.4 | 7.2 | |
| ICU admission | < 0.001 | ||||
| Yes | 5,882 | 87.5 | 3.1 | 9.5 | |
| No | 739 | 61.8 | 36.3 | 1.9 | |
| Hospital level | < 0.001 | ||||
| Medical center | 2,861 | 81.0 | 7.7 | 11.4 | |
| Regional hospital | 2,802 | 86.3 | 6.2 | 7.5 | |
| District hospital | 958 | 90.6 | 5.6 | 3.8 |
COPD, chronic obstructive pulmonary disease; INV-only, use of invasive ventilation (INV) as the only ventilator treatment; NIV-only, use of noninvasive ventilation (NIV) as the only ventilator treatment; NIV/INV, use of both NIV and INV before or after each other.