Table 2 Differences in the frequency of abnormal APTT second-derivative waveforms according to the severity of COVID-19 subjects.
From: Clot waveform of APTT has abnormal patterns in subjects with COVID-19
Normal | Early | Late | Biphasic | |
|---|---|---|---|---|
Mild case | 62% (n = 18) | 7% (n = 2) | 17% (n = 5) | 14% (n = 4) |
Moderate case | 48% (n = 30) | 0% (n = 0) | 24% (n = 15) | 27% (n = 17) |
Severe case | 48% (n = 22) | 11% (n = 5) | 20% (n = 9) | 22% (n = 10) |
