Modified mallampati classification as a clinical predictor of peroral esophagogastroduodenoscopy tolerance

BMC Gastroenterology

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

	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

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.

ISSN: 1471-230X