TABLE 4.
The stratification of pathological information with different biopsy methods
| UT-VATS | TBLC | p value | |
|---|---|---|---|
| Total, n | 67 | 70 | 0.02 |
| Grade 1 | 23 (34.3) | 9 (12.9) | 0.003 |
| Grade 2 | 33 (49.3) | 41 (58.6) | 0.27 |
| Grade 3 | 5 (7.5) | 6 (8.6) | 0.81 |
| Grade 4 | 6 (9.0) | 14 (20.0) | 0.06 |
| Initial dx UIIP, n | 22 | 15 | 0.27 |
| Grade 1 | 13 (59.1) | 7 (46.7) | 0.46 |
| Grade 2 | 1 (4.5) | 0 (0) | 0.40 |
| Grade 3 | 5 (22.7) | 2 (13.3) | 0.47 |
| Grade 4 | 3 (13.6) | 6 (40.0) | 0.06 |
| Initial dx IPAF/CTD-ILD, n | 23 | 33 | 0.14 |
| Grade 1 | 2 (8.7) | 0 (0) | 0.08 |
| Grade 2 | 19 (82.6) | 25 (75.8) | 0.54 |
| Grade 3 | 0 (0) | 3 (9.1) | 0.14 |
| Grade 4 | 2 (8.7) | 5 (15.2) | 0.47 |
Values are presented as number (%) unless specified. UT-VATS: uniportal and tubeless-video-assisted thoracic surgery, TBLC: transbronchial lung cryobiopsy, UIIP: undefined interstitial pneumonia, IPAF: interstitial pneumonia with autoimmune features, CTD-ILD: connective tissue disease-related interstitial lung disease. Grade 1: specific diagnosis with final diagnosis altered; grade 2: specific diagnosis without final diagnosis altered; grade 3: non-specific diagnosis with supplementary information provided; grade 4: non-informative diagnosis.