Table 1.

Characteristics of the study population

	Repeat rEBUS-guided TBB
Characteristic	Non-diagnostic	Diagnostic	P value
Patient No.	20	23
Age, years	65 ± 15	66 ± 11	0.731
Male gender	13 (65)	12 (52)	0.395
Lesion size, mm	37 ± 10	35 ± 14	0.693
≤ 3 cm	4 (20)	7 (30)	0.434
˃3 cm	16 (80)	16 (70)
CT appearance
Solid	17 (85)	21 (93)	0.650
Non-solid	3 (15)	2 (8.7)
Lesion location
Upper lobes	9 (45)	10 (44)	0.920
Non-upper lobes	11 (55)	13 (57)
Probe position
Within	15 (75)	17 (74)	0.935
Adjacent to	5 (25)	6 (26)
First pathology of TBB
Normal lung tissue	10 (50)	2 (8.7)	0.011
Atypical cells	6 (30)	13 (57)
Others	4 (20)	8 (35)

rEBUS radial-probe endobronchial ultrasound, TBB transbronchial biopsy