Table 2 Variables associated with the diagnostic yield of radial endobronchial ultrasound-guided transbronchial procedures
Characteristics | Diagnosed by R-EBUS-guided transbronchial procedures | P value | |
|---|---|---|---|
No (N = 118) | Yes (N = 320) | ||
Procedure strategy | |||
Biopsy-first | 61 (28) | 158 (72) | 0.667 |
Brushing-first | 57 (26) | 162 (72) | |
Age, years | |||
< 65 | 50 (42) | 146 (46) | 0.544 |
≥ 65 | 68 (58) | 174 (54) | |
Gender | |||
Male | 56 (48) | 183 (57) | 0.070 |
Female | 62 (53) | 137 (43) | |
Lobar location | |||
Upper lobes | 56 (48) | 146 (46) | 0.733 |
Non-upper lobes | 62 (53) | 174 (54) | |
Lesion size, mm | |||
≤ 20 | 16 (14) | 35 (11) | 0.448 |
> 20 | 102 (86) | 285 (89) | |
CT appearance | |||
Solid | 98 (83) | 291 (91) | 0.020 |
Non-solid | 20 (17) | 29 (9.1) | |
Probe location | |||
Within | 93 (79) | 282 (88) | 0.014 |
Adjacent to or outside | 25 (21) | 38 (12) | |
Lesion pathology | |||
Adenocarcinoma | 85 (72) | 227 (71) | 0.253 |
Non-small cell carcinoma | 8 (6.8) | 41 (13) | |
Squamous cell carcinoma | 11 (9.3) | 5 (7.8) | |
Small cell carcinoma | 3 (2.5) | 12 (3.8) | |
Metastasis | 7 (5.9) | 9 (2.8) | |
Others | 4 (3.4) | 6 (1.9) | |