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Table 1 Comparison of clinical and demographic characteristics by modified Mallampati classification (MMC)

From: Modified mallampati classification as a clinical predictor of peroral esophagogastroduodenoscopy tolerance

  MMC class  
Descriptor Good view
(n = 77)
Poor view
(n = 123)
P value
Male gender 46.8 49.6 0.696
Mean age (years), mean ± SD 50.7 ± 17.5 48.2 ± 16.0 0.301
BMI (kg/m2), mean ± SD 22.7 ± 3.4 24.1 ± 3.9 0.010
Up to high school education 58.4 55.3 0.661
Smoker 20.8 31.7 0.092
Previous EGD experience    0.179
   No 31.1 38.2  
   Good 40.3 27.6  
   Poor 28.6 34.1  
Pre-EGD anxiety 26.0 28.5 0.702
EGD diagnosis    0.155
   Normal 16.9 7.3  
   GERD 66.2 68.3  
   PUD 9.1 13.8  
   Both (GERD + PUD) 7.8 10.6  
Types of endoscope    0.239
   Q260 (9.2 mm) 59.7 51.2  
   XQ260 + XQ240 (9.0 mm) 40.3 48.8  
  1. Values reflect % unless otherwise noted. Good view: I + II; Poor view: III + IV; BMI, body mass index; EGD, esophagogastroduodenoscopy; GERD, gastroesophageal reflux disease; PUD, peptic ulcer disease.