| Score | Vascular | Bronchial |
| 0 | no inflammation | no inflammation |
| 1 | occasional cuffing | occasional cuffing |
| 2 | most vessels surrounded by a thin layer (1-5) of inflammatory cells | most vessels surrounded by a thin layer (1-5) of inflammatory cells |
| 3 | most vessels surrounded by a thick layer (>5) of inflammatory cells | most vessels surrounded by a thick layer (>5) of inflammatory cells |