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Table 1 Characteristics and lesion profile of patients undergoing ultrasound-guided lung biopsy using 16-gauge and 18-gauge biopsy needle

From: Propensity-score-matching analysis to compare efficacy and safety between 16-gauge and 18-gauge needle in ultrasound-guided biopsy for peripheral pulmonary lesions

Characteristics 16-gauge (n = 249) 18-gauge (n = 920) P value
Age (years) 57.8 ± 14.5 60.0 ± 12.8 0.028
Gender
 Male/female 156/93 611/309 0.268
Patient position (%)
 Supine 93 (37.3%) 329 (35.8%) 0.719
 Prone 112 (45.0%) 440 (47.8%)  
 Lateral 44 (17.7%) 151 (16.4%)  
Emphysema on CT 19 (7.6%) 112 (12.2%) 0.044
Location of pulmonary lesion (%)
 Left upper lobe 42 (16.9%) 193 (21.0%) 0.590
 Left lower lobe 64 (25.7%) 207 (22.5%)  
 Right upper lobe 64 (25.7%) 245 (26.6%)  
 Right middle lobe 21 (8.4%) 75 (8.2%)  
 Right lower lobe 58 (23.3%) 200 (21.7%)  
Diameter of lesion (cm) 4.8 ± 2.5 5.2 ± 2.6 0.024
 < 5 119 (47.8%) 439 (47.7%) 0.984
 ≥ 5 130 (52.2%) 481 (52.3%)  
Proportion of necrosis in the lesion
 < 50% 215 (86.3%) 762 (82.8%) 0.184
 ≥ 50% 34 (13.7%) 158 (17.2%)
Number of pleural surfaces crossed
 1 37 (14.9%) 56 (6.1%) < 0.001
 2 147 (59.0%) 647 (70.3%)
 > 2 65 (26.1%) 217 (23.6%)
Success rate (%) 240 (96.4%) 836 (90.9%) 0.004
 Malignant 135 (54.2%) 543 (59.1%) 0.001
 Benign 105 (42.2%) 293 (31.8%)
 Non-diagnostic 9 (3.6%) 84 (9.1%)
Complication rate (%) 24 (9.6%) 88 (9.6%) 0.972
 Pneumothorax 4 (1.6%) 25 (2.7%) 0.317
 Hemorrhage 15 (6.0%) 62 (6.8%) 0.687
 Vasovagal reaction 5 (2.0%) 1 (0.1%) 0.002