Baseline characteristics
| Characteristics | WISENSE (n=153) | Control (n=150) | P value |
| Age, mean (SD) | 50.6 (14.2) | 49.1 (13.4) | 0.34 |
| Female, n (%) | 77 (50.3) | 81 (54.0) | 0.52 |
| Indications for EGD, n | 0.85 | ||
| Abdominal discomfort | 103 | 101 | |
| Diarrhoea | 3 | 2 | |
| Health examination | 21 | 24 | |
| Acid reflux | 9 | 8 | |
| Suspected GI bleeding | 3 | 5 | |
| Bowel habit change | 1 | 1 | |
| Dyspepsia | 4 | 2 | |
| Belching | 3 | 1 | |
| Anaemia | 1 | 0 | |
| Constipation | 1 | 0 | |
| Vomiting | 2 | 0 | |
| Suspected malignancy | 2 | 2 | |
| Emaciation | 0 | 2 | |
| Poor appetites | 0 | 1 | |
| Dysphagia | 0 | 1 | |
| Recruitment, n (%) | 0.72 | ||
| Inpatient | 41 (26.8) | 43 (28.1) | |
| Outpatient | 112 (73.2) | 107 (69.9) |
EGD, esophagogastroduodenoscopy.