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Incidence of Columellar Necrosis
| Variable | Nasal Cannula Group (n=9) | Nasal CPAP Group (n=91) |
|---|---|---|
| Incidence of patients with columellar necrosis, No. (%)a | 0 | 5 (5.5) |
| Duration of supplemental oxygen use associated with columellar necrosis, range, d | … | 10–25 |
Abbreviations: CPAP, continuous positive airway pressure; ellipses, not applicable.
Incidence is calculated using the number of patients in the group as the denominator.
