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Table 2 Diagnostic yield according to each parameter

From: Virtual bronchoscopic navigation without X-ray fluoroscopy to diagnose peripheral pulmonary lesions: a randomized trial

  VBNA XRFA P- value Odds ratio 95% Confidence
interval
Total 50/65 (76.9) 55/64 (85.9) 0.258 1.8 0.7 4.6
 Forceps 48/65 (73.8) 54/64 (84.4) 0.142 1.9 0.8 4.6
 Brush 40/65 (61.5) 47/64 (73.4) 0.149 1.7 0.8 3.6
Lesion size
  ≤ 50 mm 36/49 (73.5) 46/55 (83.6) 0.236 1.8 0.7 4.8
  > 50 mm 14/16 (87.5) 9/9 (100) 0.400 1.1 1.0 1.4
Lobe
 Right upper 15/19 (78.9) 13/14 (92.9) 0.278 3.5 0.3 35.1
 Right middle 4/5 (80.0) 2/2 (100) 0.714 N/A   
 Right lower 12/13 (92.3) 14/19 (73.7) 0.197 0.2 0.02 2.3
 Left upper 14/21 (66.7) 15/17 (88.2) 0.120 3.8 0.7 21.2
 Left lower 5/7 (71.4) 11/12 (91.7) 0.296 4.4 0.3 60.6
Frontal X-ray film
 Invisible 1/2 (50.0) 3/3 (100) 0.400 N/A   
 Visible 49/63 (77.8) 52/61 (85.2) 0.357 1.7 0.7 4.2
Bronchus sign
 Absent 0/0 (0) 3/3 (100) N/A N/A   
 Present 50/65 (76.9) 52/61 (85.2) 0.263 1.7 0.7 4.3
Location
 Central 5/7 (71.4) 3/4 (75.0) 0.721 1.2 0.07 19.6
 Intermediate 8/11 (72.7) 15/17 (88.2) 0.290 2.8 0.4 20.5
 Peripheral 37/47 (78.7) 37/43 (86.0) 0.418 1.7 0.5 5.1
EBUS
 Visualized 50/62 (80.6) 55/62 (88.7) 0.319 1.9 0.7 5.2
 Not visualized 0/3 (0) 0/2 (0)     
Final diagnosis
 Primary lung cancer 43/56 (76.8) 53/60 (88.3) 0.140 2.3 0.8 6.2
 Metastatic lung tumor 2/3 (66.7) 1/2 (50.0) 0.700 0.5 0.01 19.6
 Benign 5/6 (83.3) 1/2 (50.0) 0.464 0.2 0.01 6.6
  1. Data are shown as numbers of lesions/total lesions (%)