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