Table 3. Clinical Severity Score (CSS): Scores varied from 0 to 5.
| Clinical Severity Score (CSS) | ||||||
|---|---|---|---|---|---|---|
| CSS | RSV-A n (%) | RSV-B n (%) | p-value | Viral load median (IQR) | n | p-value |
| 0 | 1 (1%) | 10 (15%) | 0.003 | 54.06 (6.12–603.61) | 8 | 0.089 |
| 1 | 8 (8%) | 8 (12%) | 217.41 (96.38–370.56) | 9 | ||
| 2 | 19 (20%) | 11 (17%) | 41.18 (6.53–112.59) | 16 | ||
| 3 | 14 (15%) | 15 (23%) | 17.31 (6.33–125.40) | 14 | ||
| 4 | 26 (27%) | 9 (14%) | 12.05 (4.32–36.63) | 9 | ||
| 5 | 28 (29%) | 13 (20%) | 11.81 (1.14–54.24) | 18 | ||
Higher values indicated more severe illness. Need for ICU, O2≤95%, hospitalization length of stay >5 days, and requirement of O2 therapy accounted for 1 point each. The need for mechanical ventilation accounted for 2 points. Patients infected with RSV-A were most commonly classified into the most severe scores.