TABLE 1 ] .
Emphysema Severity Scores
| Score | Emphysematous Involvement, % | Severity of Emphysema |
| 0 | 0 | None/negligible |
| 1 | 1-10 | Trace |
| 2 | 11-25 | Mild |
| 3 | 26-50 | Moderate |
| 4 | 51-75 | Severe |
| 5 | > 75 | Very severe |
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