Table 2.
Characteristics of EBTB according to bronchoscopic features
| Bronchoscopic features | n (%) |
|---|---|
| Type of EBTB | |
| Actively caseating | 114 (48.9) |
| Oedema or hyperaemia | 87 (37.3) |
| Other types† | 32 (12.8) |
| Length of involvement (mm) (±SD) | 24.31 (±21.8) |
| Site involved | |
| Central airways | 199 (85.4) |
| Trachea | 38 (16.3) |
| Main bronchi | 58 (24.9) |
| Lobar bronchi | 103 (44.2) |
| Segmental bronchi | 34 (14.6) |
| Levels involved | |
| Single | 152 (65.2) |
| Multiple | 81 (34.8) |
| Stenosis grade (central EBTB; n = 199) | |
| Grade 1 | 140 (70.4) |
| Grade 2 or 3 | 59 (29.6) |
| Grade 2 | 30 (15.1) |
| Grade 3 | 29 (14.5) |
†
Including 11 patients with fibrostenotic, 2 tumorous, 3 ulcerative, 4 granular, and 12 non-specific bronchitic type.
EBTB, endobronchial tuberculosis; SD, standard deviation.