TABLE 4.
Clinical quantitative factors affecting diagnostic yield
| Variables | Other methods (N = 27) | UTB (N = 93) | p‐value |
|---|---|---|---|
| Distance to the pleura, mean ± SD, mm | |||
| Fluoroscopy group | 11.4 ± 9.5 | 18.6 ± 15.3 | 0.14 |
| Nonfluoroscopy group | 14.7 ± 12.5 | 17.3 ± 15.0 | 0.54 |
| Distance between the lesion and opening of the lobar bronchus, mean ± SD, mm | |||
| Fluoroscopy group | 66.0 ± 18.3 | 56.9 ± 15.4 | 0.09 |
| Nonfluoroscopy group | 66.2 ± 22.4 | 58.0 ± 16.8 | 0.13 |
| EBUS time, mean ± SD, s | |||
| Fluoroscopy group | 216.8 ± 161.1 | 175.0 ± 142.7 | 0.40 |
| Nonfluoroscopy group | 201.2 ± 135.9 | 144.2 ± 130.5 | 0.14 |
| Total procedure time, mean ± SD, s | |||
| Fluoroscopy group | 946.1 ± 237.0 | 940.5 ± 266.1 | 0.95 |
| Nonfluoroscopy group | 905.7 ± 212.1 | 833.2 ± 308.7 | 0.39 |
| Number of specimens per lesion, mean ± SD, times | |||
| Fluoroscopy group | 5.6 ± 0.7 | 6.0 ± 1.0 | 0.11 |
| Nonfluoroscopy group | 5.4 ± 1.8 | 5.9 ± 1.6 | 0.26 |
Abbreviations: EBUS, endobronchial ultrasound; SD, standard deviation; UTB, ultrathin bronchoscope.