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Table 2 Comparison of characteristics, efficacy and safety in patients undergoing ultrasound-guided lung biopsy between 16-gauge and 18-gauge core biopsy needle when number of pleural surface crossed was 1

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

Variable Overall cohort Propensity-score matched cohort
16-gauge (n = 37) 18-gauge (n = 56) P value 16-gauge (n = 36) 18-gauge (n = 36) P value
Age (years) 59.0 ± 13.8 59.0 ± 13.3 0.975 58.5 ± 13.7 59.2 ± 12.6 0.823
Gender
 Male/female 25/12 33/23 0.400 24/12 21/15 0.465
Patient position
 Supine/prone/lateral 16/13/8 27/20/9 0.780 16/7/13 14/8/14 0.888
Emphysema on CT 0 (0%) 4 (7.1%) 0.254 0 (0%) 0 (0%)
Location of pulmonary lesion (%)
 Left upper lobe 10 (27.1%) 16 (28.6%) 0.731 9 (25.0%) 11 (30.6%) 0.674
 Left lower lobe 9 (24.3%) 10 (17.9%) 9 (25.0%) 6 (16.7%)
 Right upper lobe 7 (18.9%) 14 (25.0%) 7 (19.4%) 7 (19.4%)
 Right middle lobe 2 (5.4%) 6 (10.6%) 2 (5.6%) 5 (13.9%)
 Right lower lobe 9 (24.3%) 10 (17.9%) 9 (25.0%) 7 (19.4%)
Diameter of lesion (cm) 4.3 ± 2.2 4.7 ± 2.4 0.447 4.3 ± 2.3 4.4 ± 2.4 0.841
 < 5/≥5 21/16 26/30 0.330 20/16 18/18 0.637
Proportion of necrosis in the lesion
 < 50%/≥50% 35/2 52/4 1.000 34/2 35/1 1.000
Success rate (%) 36 (97.3%) 54 (96.4%) 1.000 35 (97.2%) 34 (94.4%) 1.000
 Malignant 23 (62.2%) 28 (50.0%) 0.514 13 (36.1%) 13 (36.1%) 0.837
 Benign 13 (35.1%) 26 (46.4%) 22 (61.1%) 21 (58.3%)
 Non-diagnostic 1 (2.7%) 2 (3.6%) 1 (2.8%) 2 (5.6%)
Complication rate (%) 1 (2.7%) 8 (14.3%) 0.081 1 (2.8%) 6 (16.7%) 0.112
 Pneumothorax 0 (0%) 3 (5.4%) 0.406 0 (0%) 2 (5.6%) 0.473
  Major 0 (0%) 0 (0%) 0 (0%) 0 (0%)
  Minor 0 (0%) 3 (5.4%) 0.406 0 (0%) 2 (5.6%) 0.473
 Hemorrhage 1 (2.7%) 5 (8.9%) 0.397 1 (2.8%) 4 (11.1%) 0.354
  Major 0 (0%) 0 (0%) 0 (0%) 0 (0%)
  Minor 1 (2.7%) 5 (8.9%) 0.397 1 (2.8%) 4 (11.1%) 0.354
 Vasovagal reaction 0 (0%) 0 (0%) 0 (0%) 0 (0%)