Table 3.
Clinical parameters after 7 days of treatment
| HFNC (n = 55) | Standard oxygen mask (n = 57) | P value | |
|---|---|---|---|
| PaO2/FiO2 ratio | 268.12 ± 28.44 | 238.28 ± 30.04 | 0.015 |
| PaCO2 (mmHg) | 38.02 ± 8.84 | 49.27 ± 7.84 | 0.019 |
| mMRC dyspnea score | 1.58 ± 0.57 | 1.90 ± 0.43 | 0.021 |
| WBC count (×109/L) | 7.15 ± 2.14 | 9.86 ± 2.75 | 0.007 |
| PCT (µg /L) | 0.17 ± 0.15 | 0.43 ± 0.16 | <0.001 |
| CRP (mg/L) | 31.46 ± 10.27 | 48.44 ± 15.32 | 0.002 |
Data are mean ± standard deviation.
HFNC, high-flow nasal cannula; PaO2, partial pressure of arterial blood oxygen; FiO2, fraction of inspired oxygen; PaCO2, partial pressure of arterial blood carbon dioxide; mMRC, Modified Medical Research Council; WBC, white blood cell; PCT, procalcitonin; CRP, C-reactive protein.