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Table 4 Results of single-factor analysis of the risk factors for tube displacement

From: Analysis of morbidity, mortality, and risk factors of tracheostomy-related complications in patients with oral and maxillofacial cancer

Variable Displacement, present, n = 5 (9.8) Displacement, absent, n = 46 (90.2) p value
Patient-related characteristics    
 Age, years, mean 60.6 54.0 0.378a
 BMI, kg/m2, mean 25.5 22.1 0.038a
 Sex    0.070
  Male 5 (100.0) 27 (58.7)  
  Female 0 19 (41.3)  
 Smoker 5 (100.0) 25 (54.3) 0.049
 Alcohol drinker 4 (80.0) 25 (54.3) 0.271
 Neck height, cm 34.7 44.6 0.206a
 Pretracheal soft tissue thickness, cm 13.4 11.2 0.298a
Treatment-related characteristics    
 Type of neck dissection    0.070
  Unilateral 5 (100.0) 27 (58.7)  
  Bilateral 0 19 (41.3)  
 Type of flap used    0.649
  Fasciocutaneous 2 (40.0) 13 (28.3)  
  Musculocutaneous 3 (60.0) 27 (58.7)  
  Osteocutaneous 0 6 (13.0)  
 Type of tube used    0.668
  Single cannula 4 (80.0) 40 (87.0)  
  Double cannula 1 (20.0) 6 (13.0)  
  1. BMI body mass index
  2. aMann-Whitney test was used to analyze continuous variables. Data in the table are presented as numbers (percent), unless otherwise indicated