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Table 1 Patient characteristics

From: Predictors of failure of intersegmental line creation using bronchoscopic jet ventilation for thoracoscopic pulmonary segmentectomy

Variables Total cases Succeeded cases Failed cases  
n = 48 n = 35 n = 13 Pb
Male 25 (52%) 19 (54%) 6 (46%) 0.748
Age (years) 68 ± 7.6 69 ± 7.8 65 ± 6.1 0.0741
BMI 23 ± 3.1 23 ± 2.6 23 ± 4.0 0.5569
Obstructive ventilatory impairment
 FEV1% < 70 9 (19%) 5 (14%) 4 (31%) 0.228
 Emphysematous change in CT 14 (29%) 10 (29%) 4 (31%) 1
Smokinga
 Ever/current smoker 29 (61%) 21 (62%) 8 (62%) 0.787
 Brinkman index 552 ± 658 395 ± 415 962 ± 965 0.0067
 Brinkman index > 1000 8 (17%) 2 (6%) 6 (46%) 0.003
Operative time (min) 327 ± 99 327 ± 110 326 ± 66 0.964
Intraoperative bleeding (mL) 50 ± 70 44 ± 63 66 ± 86 0.3292
Time until drainage tube removal (day) 3.5 ± 2.4 3.5 ± 2.5 3.4 ± 1.9 0.8688
Postoperative complications (%) 11 (23%) 9 (26%) 2 (15%) 0.702
Persistent air leak (%) 6 (13%) 5 (14%) 1 (8%) 1
Targeted bronchus
 B1+2 14 (29%) 10 (29%) 4 (31%) 1
 B10 5 (10%) 1 (3%) 4 (31%) 0.015
  1. BMI body mass index, FEV1% forced expiratory volume in 1 s/forced vital capacity, Brinkman index the number of cigarettes smoked per day multiplied by the number of years of smoking
  2. Continuous variables were presented as mean ± standard deviation
  3. aInformation about smoking was missing in one patient
  4. bStudent’s t test for mean difference, and Fisher’s exact test for percentage difference