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Description of the characteristics (%) for COVID-19 patients included in the study.
| Total patients (n = 1103) | |
|---|---|
| Age (SD) | 66.0 (15.6) |
| Female | 38.2 |
| Oxygen saturation extremely low | 2.6 |
| Oxygen saturation low | 22.4 |
| Oxygen saturation medium | 43.0 |
| Oxygen saturation correct | 32.0 |
