Table 1 Patient characteristics and procedure-related information
Gender, n (%) | Â |
 Male | 326 (47%) |
 Female | 374 (53%) |
Race, n (%) | Â |
 Malay | 203 (29%) |
 Chinese | 290 (41%) |
 Indian | 199 (28%) |
 Others | 8 (1%) |
Education level, n (%) | Â |
 None | 106 (15%) |
 Primary | 115 (16%) |
 Secondary | 299 (43%) |
 Tertiary | 180 (26%) |
History of previous gastroscopy, n (%) | Â |
 Yes | 299 (43%) |
 No | 401 (57%) |
Indication, n (%) | Â |
 Suspected peptic ulcer disease | 454 (65%) |
 Suspected malignancy | 100 (14%) |
 Gastroesophageal reflux disease | 73 (10%) |
 Variceal surveillance | 21 (3%) |
 Anemia for investigation | 47 (7%) |
 Procedural | 5 (1%) |
Duration of gastroscopy, n (%) | Â |
 ≤ 10 minutes | 407 (58.1%) |
 > 10 minutes | 293 (41.9%) |
Sedation, n (%) | Â |
 Yes | 641 (92%) |
 No | 59 (8%) |
Amount of midazolam given, n (%) | Â |
 ≤ 2.5 mg | 238 (37.1%) |
 > 2.5 mg | 403 (62.9%) |
Level of sedation according to OAASS, n (%) | Â |
 1 | 2 (0.3%) |
 2 | 60 (8.6%) |
 3 | 426 (60.9%) |
 4 | 110 (15.7%) |
 5 | 102 (14.6%) |