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| Disease severity | n (%) admission, n = 62 | Admission TWA (µV), mean ± SD | P value | n (%) discharge, n = 38 | Discharge TWA (µV), mean ± SD | P value |
|---|---|---|---|---|---|---|
| Mild illness | 47 (75.80) | 44.29 ± 27.14 | 0.3418 | 25 (65.79) | 49.47 ± 33.62 | 0.3303 |
| Moderate illness | 15 (24.19) | 36.75 ± 24.46 | 13 (34.21) | 61.09 ± 35.99 |
COVID-19: coronavirus disease 2019; TWA: T-wave alternans; SD: standard deviation.
