TABLE 3.
Univariable Analyses for Diagnostic Yield.
Variable | Forceps biopsy | Cryobiopsy | Overall diagnostic yield | |||
---|---|---|---|---|---|---|
Diagnostic yield (%) | P | Diagnostic yield (%) | P | Diagnostic yield (%) | P | |
Age (y) | ||||||
≤70 | 70/105 (66.7) | 0.675 | 90/105 (85.7) | 0.742 | 96/105 (91.4) | 0.988 |
>70 | 60/94 (63.8) | 79/94 (84.0) | 86/94 (91.5) | |||
Sex | ||||||
Male | 75/117 (64.1) | 0.665 | 103/117 (88.0) | 0.143 | 108/117 (92.3) | 0.608 |
Female | 55/82 (67.1) | 66/82 (80.5) | 74/82 (90.2) | |||
Smoking history | ||||||
Never | 56/88 (63.6) | 0.656 | 71/88 (80.7) | 0.136 | 80/88 (90.9) | 0.805 |
Ever | 74/111 (66.7) | 98/111 (88.3) | 102/111 (91.9) | |||
Diameter of lesion (mm) | ||||||
≤20 | 31/61 (50.8) | 0.004 | 50/61 (82.0) | 0.438 | 52/61 (85.2) | 0.037 |
>20 | 99/138 (71.7) | 119/138 (86.2) | 130/138 (94.2) | |||
Diameter of lesion (mm) | ||||||
<10mm | 4/8 (50.0) | 0.010 | 6/8 (75.0) | 0.439 | 6/8 (75.0) | 0.012 |
10-20 mm | 30/59 (50.8) | 48/59 (81.4) | 50/59 (84.7) | |||
>20 mm | 96/132 (72.7) | 115/132 (87.1) | 126/132 (95.5) | |||
Diameter of lesion in lower lobes (mm) | ||||||
<10mm | 4/6 (66.7) | 0.220 | 6/6 (100) | 0.350 | 6/6 (100) | 0.250 |
10-20 mm | 16/28 (57.1) | 23/28 (82.1) | 25/28 (89.3) | |||
>20mm | 38/51 (74.5) | 46/51 (90.2) | 49/51 (96.1) | |||
Location of lesion | ||||||
RUL and LUS | 50/81 (61.7) | 0.377 | 63/81 (77.8) | 0.02 | 69/81 (85.2) | 0.009 |
Others | 80/118 (67.8) | 106/118 (89.8) | 113/118 (95.8) | |||
Morphology | ||||||
Others | 31/49 (63.3) | 0.727 | 34/49 (69.4) | <0.001 | 42/49 (85.7) | 0.098 |
Solid | 99/150 (66.0) | 135/150 (90.0) | 140/150 (93.3) | |||
CT bronchus sign | ||||||
Positive | 124/188 (66.0) | 0.440 | 161/188 (85.6) | 0.219 | 174/188 (92.6) | 0.056 |
Negative | 6/11 (54.5) | 8/11 (72.7) | 8/11 (72.7) | |||
EBUS orientation | ||||||
Within | 98/139 (70.5) | 0.017 | 112/139 (87.8) | 0.199 | 133/139 (95.7) | 0.002 |
Adjacent | 30/57 (52.6) | 46/57 (80.7) | 47/57 (82.5) | |||
Number of cryobiopsies | ||||||
1 | NA | 53/68 (77.9) | 0.047 | 62/68 (91.2) | 0.919 | |
>1 | 116/131 (88.5) | 120/131 (91.6) | ||||
Pathology | ||||||
Malignancy | 102/158 (64.6) | 0.654 | 130/158 (82.3) | 0.049 | 141/158 (89.2) | 0.026 |
Benign | 28/41 (65.3) | 39/41 (95.1) | 41/41 (100) |
Data are presented as number (%).
CT indicates computed tomography; EBUS, endobronchial ultrasound; LUS, left upper segment; RUL, right upper lobe.