Mean non-colonic symptom scores before and after GFH
| Non-colonic symptom | Mean symptom score pre-GFH | Mean symptom score post-GFH | P value |
| Nausea/ vomiting | 37.6±5.5 | 12.8±3.2 | <0.0001 |
| Early satiety | 33.3±6.1 | 19.9±4.4 | 0.01 |
| Headaches | 46.6±5.6 | 27.7±4.5 | 0.0006 |
| Backache | 45.3±6.5 | 23.3±4.5 | <0.0001 |
| Lethargy | 71.7±5.0 | 42.7±4.8 | <0.0001 |
| Excess wind | 68.7±5.5 | 35.4±5.0 | <0.0001 |
| Heartburn | 29.2±4.8 | 11.5±3.3 | <0.0001 |
| Urinary symptoms | 35.4±6.0 | 20.5±5.1 | 0.004 |
| Thigh pain | 21.0±4.7 | 11.4±4.0 | 0.03 |
| Musculoskeletal aches and pains | 50.9±6.5 | 25.2±4.4 | <0.0001 |
GFH, gut-focused hypnotherapy.