Table 2.
Factors affecting the diagnostic yield of cryobiopsy
| Variable | Diagnostic case, n | Diagnostic yield, % | P-value |
|---|---|---|---|
| Age (years) | 0.103 | ||
| ≤ 70 | 26/26 | 100.0 | |
| > 70 | 21/24 | 87.5 | |
| Sex | 1.000 | ||
| Male | 33/35 | 94.3 | |
| Female | 14/15 | 93.3 | |
| Lesion size (mm) | 1.000 | ||
| ≤ 20 | 21/22 | 95.4 | |
| > 20 | 26/28 | 92.9 | |
| Lobe | 0.704 | ||
| Right upper lobe/left upper segment | 25/27 | 92.6 | |
| Right middle lobe/left lingula | 9/9 | 100.0 | |
| Right/left lower lobes | 13/14 | 92.9 | |
| Location | 0.370 | ||
| Outer | 41/43 | 95.3 | |
| Inner | 6/7 | 85.7 | |
| Morphology | 1.000 | ||
| Solid | 29/31 | 93.5 | |
| Part-solid | 18/19 | 94.7 | |
| Distance from the costal pleura (mm) | 0.602 | ||
| ≤ 10 | 25/26 | 96.1 | |
| > 10 | 22/24 | 91.7 | |
| Bronchus sign | 0.035 | ||
| Positive | 33/33 | 100.0 | |
| Negative | 14/17 | 82.3 | |
| Related bronchial generation | 1.000 | ||
| ≤ 6 | 13/14 | 92.9 | |
| > 6 | 34/36 | 94.4 | |
| Visibility on plain radiograph | 1.000 | ||
| Visible | 36/38 | 94.7 | |
| Invisible | 11/12 | 91.7 | |
| R-EBUS finding | 1.000 | ||
| Within | 24/26 | 92.3 | |
| Adjacent to | 23/24 | 95.8 |
R-EBUS radial endobronchial ultrasound