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Summary of primary etiology for ARF and the comorbidities.
| HFNC success | HFNC failure | |
|---|---|---|
| n = 46 | 35 | 11 |
| Primary etiology for ARF | ||
| ARDS | 15 | 5 |
| Pneumonia | 12 | 5 |
| Cardiogenic pulmonary edema | 7 | 0 |
| Pulmonary embolism | 1 | 1 |
| Comorbidity | ||
| Hypertension | 12 | 7 |
| Congestive heart failure | 5 | 4 |
| Cerebral vascular disease | 4 | 2 |
| Chronic kidney disease | 4 | 3 |
| Chronic pulmonary disease | 4 | 0 |
| Diabetes | 7 | 4 |
ARF, acute respiratory failure; ARDS, acute respiratory distress syndrome.
