Table 7 Comparison of CTSS with clinical severity and SpO2 levels at the time of scan and on follow-up
From: COVITALE 2020 from eastern Indian population: imageologists perspective, a learning curve
CTSI categories | No. of patients (out of 1000) | Clinical grade | Spo2 grading | No. of patients | % | Patients who developed hypoxemia on follow up | Percentage of patients who developed hypoxemia on follow up |
|---|---|---|---|---|---|---|---|
0–7 | 512 | Asymp &Mild |  > 95 | 371 | 72.46 | 42 | 11.32 |
Moderate | 90–94 | 112 | 21.87 | –* | – | ||
Severe |  < 90 | 29 | 5.66 | –* | – | ||
8–15 | 295 | Asymp &Mild |  > 95 | 63 | 21.35 | 10 | 15.87 |
Moderate | 90–94 | 189 | 64.06 | –* | – | ||
Severe |  < 90 | 43 | 14.57 | –* | – | ||
16–25 | 193 | Asymp &Mild |  > 95 | 14 | 7.21 | 2 | 14.28 |
Moderate | 90–94 | 46 | 23.71 | –* | – | ||
Severe |  < 90 | 133 | 69 | –* | – |