Table 2.

High-flow nasal cannula initial and final settings of all treated patients those with and without epistaxis

Variable	Total n = 70	Epistaxis n = 7	No epistaxis n = 63	p value
Flow (L/minute)
Initial	30 [24 - 40]	30 [22.5 - 30]	30 [24 - 40]	0.49
Final	25 [20 - 38.8]	20 [19 - 29]	25 [20 - 40]	0.23
Temperature (°C)
Initial	36 [34.2 - 36]	36 [35.5 - 36]	35 [34 - 36]	0.20
Final	36 [34 - 36]	36 [34 - 36]	36 [34 - 36]	0.90
Fraction of inspired oxygen
Initial	0.50 [0.40 - 0.75]	0.40 [0.40 - 0.55]	0.55 [0.40 - 0.75]	0.34
Final	0.40 [0.30 - 0.70]	0.50 [0.35 - 0.60]	0.40 [0.30 - 0.70]	0.98
Duration of HFNC therapy (days)	2.5 [1 - 5]	4 [0.5 - 11.5]	2 [1 - 5]	0.59

HFNC - high-flow nasal cannula. Results expressed as median [interquartile range].