Table 4.
Characteristics of the misclassifications of patients with altitude-P/F-corrected criteria and Zhang criteria.
| Parameter | Patients with P/F 200–230 | Patients with P/F 200–153 |
|---|---|---|
| No | 25 | 5 |
| APACHE II score ( ± SD) | 13.28 ± 4.14 | 15.6 ± 5.08 |
| ICU mortality: No(%) | 12% | 0 |
| Duration of invasive ventilation, d, median (IQR) | 1.83(0.83–4.29) | 6.79(1.08–8.08) |
| ICU length of stay, d, median (IQR) | 4.42(1.96–9.42) | 12.67(6.13–21.54) |
| Hospital length of stay, d, median (IQR) | 24(16.00–35.00) | 22(13.00–28.00) |
| ARDS risk factors (n,%) | ||
| Trauma | 3(12.00%) | 2(40.00%) |
| Pneumonia | 4(16.00%) | 0 |
| Infection | 7(28.00%) | 2(40.00%) |
| Aspiration | 4(16.00%) | 0 |
| Other | 7(28.00%) | 1(20.00%) |
APACHE II, Acute Physiology and Chronic Health Evaluation II; IQR, Inter Quartile Range.