Associations between the symptom complexes expressed as odds ratios (95% confidence limits)
| IBS | GOR symptoms | Dyspepsia | |
| BHR | 2.1 (1.67–2.71) | 2.25 (1.81–2.78) | 2.04 (1.64–2.54) |
| Dyspepsia | 5.5 (4.50–6.73) | 6.49 (5.42–7.76) | |
| GOR symptoms | 2.6 (2.14–3.17) |
GOR, gastro-oesophageal reflux.