Time (h) | Patients remaining on HFNC | Success | Patients remaining on HFNC | Failure | p-value | |
---|---|---|---|---|---|---|
ROX index | 1 | 52 | 6.99 ± 2.14 | 23 | 5.66 ± 2.18 | 0.024 |
2 | 52 | 7.69 ± 2.40 | 21 | 6.17 ± 2.37 | 0.021 | |
6 | 47 | 8.28 ± 2.66 | 17 | 6.68 ± 3.00 | 0.046 | |
HACOR scale | 1 | 52 | 2.61 ± 2.23 | 23 | 4.50 ± 2.77 | 0.015 |
2 | 52 | 2.21 ± 2.23 | 21 | 4.11 ± 2.87 | 0.017 | |
6 | 47 | 1.78 ± 1.90 | 17 | 3.67 ± 2.84 | 0.047 | |
Respiratory rate (breaths/min) | 1 | 52 | 26.10 ± 4.69 | 23 | 30.13 ± 5.90 | 0.022 |
2 | 52 | 25.15 ± 3.93 | 21 | 29.18 ± 5.88 | 0.006 | |
6 | 47 | 25.42 ± 3.36 | 17 | 29.41 ± 5.60 | 0.001 | |
SpO2/FiO2 ratio | 1 | 52 | 179.12 ± 45.02 | 23 | 155.03 ± 43.56 | 0.052 |
2 | 52 | 191.31 ± 51.19 | 21 | 161.03 ± 43.87 | 0.020 | |
6 | 47 | 210.11 ± 55.96 | 17 | 157.87 ± 38.34 | 0.001 | |
Pulse rate (beats/min) | 1 | 52 | 90.51 ± 19.44 | 23 | 101.78 ± 19.80 | 0.036 |
2 | 52 | 90.30 ± 19.99 | 21 | 101.29 ± 23.04 | 0.059 | |
6 | 47 | 88.98 ± 18.46 | 17 | 109.17 ± 22.54 | 0.002 |