Table 2.
Chest CT and bronchoscopy features of study participants.
| Characteristics | BM (n=57) | Non-BM (n=47) | χ2 | P-value |
|---|---|---|---|---|
| Chest CT features, n (%) | ||||
| Atelectasis | 0.878 | 0.349 | ||
| Yes | 14 (24.56%) | 8 (17.02%) | ||
| No | 43 (75.44%) | 39 (82.98%) | ||
| Cavitary | 0.127 | 0.722 | ||
| Yes | 6 (10.53%) | 6 (12.77%) | ||
| No | 51 (89.47%) | 41 (87.23%) | ||
| Fibrous lesion | 0.016 | 0.900 | ||
| Yes | 9 (15.79%) | 7 (14.89%) | ||
| No | 48 (84.21%) | 40 (85.11%) | ||
| Mucus plugging | 2.015 | 0.156 | ||
| Yes | 15 (20.07%) | 7 (14.89%) | ||
| No | 42 (71.93%) | 40 (85.11%) | ||
| Bronchiectasis | 0.036 | 0.849 | ||
| Yes | 22 (38.60%) | 19 (40.43%) | ||
| No | 35 (61.40%) | 28 (59.57%) | ||
| Bronchoscopic features, site, n (%) | ||||
| Trachea | 4.352 | 0.037 | ||
| Yes | 17 (29.82%) | 6 (12.77%) | ||
| No | 40 (70.18%) | 41 (87.23%) | ||
| Left main bronchus | 7.717 | 0.005 | ||
| Yes | 35 (61.40%) | 16 (34.04%) | ||
| No | 22 (38.60%) | 31 (65.96%) | ||
| Right main bronchus | 0.540 | 0.463 | ||
| Yes | 17 (29.82%) | 11 (23.40%) | ||
| No | 40 (70.18%) | 36 (76.60%) | ||
| Bronchus intermedius | 0.272 | 0.602 | ||
| Yes | 8 (14.04%) | 5 (10.64%) | ||
| No | 49 (85.96%) | 42 (89.36%) | ||
| ≥2 bronchi | 5.136 | 0.023 | ||
| Yes | 18 (31.58%) | 6 (12.77%) | ||
| No | 39 (68.42%) | 41 (87.23%) | ||
| Stenosis degree | 2.899 | 0.089 | ||
| Mild-to-moderate | 22 (38.60%) | 26 (55.32%) | ||
| Severe | 35 (61.40%) | 21 (44.68%) | ||
Data are expressed as numbers (percentage). Differences between the 2 groups were tested by the χ2 test for categorical variables. BM – bronchomalacia; CT – computed tomography.