Table 1 Severity scale for valleculae residue
From: Swallowing transit times and valleculae residue in stable chronic obstructive pulmonary disease
Severity | Percentage of residue in vallecular space |
|---|---|
Normal | <3 |
Mild | ≥3 a <25 |
Moderate | ≥25 a <55 |
Severe | ≥55 |