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Table 3 Factors affecting diagnostic yield of EBUS-GS for peripheral cavitary lung lesions

From: Radial endobronchial ultrasound with a guide sheath for diagnosis of peripheral cavitary lung lesions: a retrospective study

Variable Univariate analysis Multivariate analysis
Diagnostic yield, (%) P value OR (95 % CI) P value
Age, year
 ≥ 70 17/20 (85) 0.72  
 < 70 23/30 (76.7)    
Sex
 Male 26/32 (81.3) 1  
 Female 14/18 (77.8)    
Lesion size, mm
 > 30 25/31 (80.6) 1 1.19 (0.24–5.95) 0.83
 ≤ 30 15/19 (78.9)    
Cavity wall thickness, mm
 > 10 22/27 (81.5) 1  
 ≤ 10 18/23 (78.3)    
Distance from costal pleura, mm
 > 10 10/11 (90.9) 0.42  
 ≤ 10 30/39 (76.9)    
Lobar location
 Lower 21/27 (77.8) 0.74  
 Upper/middle 19/23 (82.6)    
Bronchus sign
 Positive 32/41 (78.0) 0.67 0.26 (0.02–2.90) 0.27
 Negative 8/9 (88.9)    
VBN
 Yes 22/27 (81.5) 1  
 No 18/23 (78.3)    
EBUS image
 Within 24/26 (92.3) 0.03 7.04 (1.27–38.90) 0.03
 Adjacent to/invisible 16/24 (66.7)    
  1. Abbreviations: CI confidence interval, EBUS endobronchial ultrasound, EBUS-GS endobronchial ultrasound with a guide sheath, OR odds ratio, VBN virtual bronchoscopic navigation