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Table 2 Comparison of clinical and demographic characteristics by presence of gag reflex

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

  Endoscopist assessment for gag reflex  
Descriptor Absent
(n = 145)
Present
(n = 55)
P value
MMC class, poor view 53.8 81.8 <0.001
Male gender 44.8 58.2 0.092
Mean age (years), mean ± SD 50.2 ± 16.9 46.5 ± 15.5 0.158
BMI (kg/m2), mean ± SD 23.6 ± 3.7 23.4 ± 4.1 0.689
Up to high school education 60.7 45.5 0.052
Smoker 24.1 36.4 0.084
Previous EGD experience    0.324
   No 32.4 43.6  
   Good 34.5 27.3  
   Poor 33.1 29.1  
Pre-EGD anxiety 27.6 27.3 0.965
EGD diagnosis    0.192
   Normal 13.1 5.5  
   GERD 68.3 65.5  
   PUD 9.7 18.2  
   Both (GERD + PUD) 9.0 10.9  
Types of endoscope    0.520
   Q260 (9.2 mm) 53.1 58.2  
   XQ260 + XQ240 (9.0 mm) 46.9 41.8  
  1. Values reflect % unless otherwise noted. MMC, modified Mallampati classification; Good view: I + II; BMI, body mass index; EGD, esophagogastroduodenoscopy; GERD, gastroesophageal reflux disease; PUD, peptic ulcer disease.