Table 4.
Categorized scores for clinical, laboratory, and radiological results
| Points | |||
|---|---|---|---|
| 0 | 1 | 2 | |
| Clinical characteristics | |||
| History of exposure | Without | With | – |
| Laboratory tests | |||
| Leukocyte count | < 3.5 × 109 per L | 3.5–9.5 × 109 per L | > 9.5 × 109 per L |
| Neutrophil count | < 1.8 × 109 per L | 1.8–6.3 × 109 per L | > 6.3 × 109 per L |
| Platelet count | < 125 × 109 per L | 125–350 × 109 per L | > 350 × 109 per L |
| CT findings | |||
| Number of segments with peripheral lesions | ≤ 4 | > 4 | – |
| Number of segments with GGO | ≤ 4 | > 4 | – |
| Total number of affected segments | ≤ 5 | > 5 | – |
| Total CT scores | ≤ 8 | > 8 | – |
| Air bronchogram | Without | With | – |
| Tree-in-bud sign | Without | With | – |
| Crazy-paving pattern | Without | With | – |
| Subpleural curvilinear line | Without | With | – |
GGO ground glass opacity