| Surgical arm | Medical arm | |
| n = 288 | n = 266 | |
| Mean age (SD) years | 44.8 (10.9) | 45.4 (11.5) |
| % males | 69.1 | 74.8 |
| Mean BMI (SD) | 27.2 (3.7) | 27.3 (4.4) |
| Duration of verified reflux disease (%) | ||
| <1 year | 29.2 | 30.1 |
| 1–5 years | 50.7 | 50.8 |
| >5 years | 19.4 | 18.8 |
| LA grade of oesophagitis (%) | ||
| No oesophagitis | 46.5 | 48.5 |
| Grade A | 27.4 | 20.7 |
| Grade B | 22.2 | 27.1 |
| Grade C | 3.5 | 3.8 |
| Grade D | 0.3 | 0 |
| Presence of Barrett’s oesophagus (%) | 10.4 | 9.4 |
| Heartburn severity (%) | ||
| None | 35.4 | 34.6 |
| Mild | 25.0 | 22.9 |
| Moderate | 24.3 | 24.4 |
| Severe | 15.3 | 18.0 |
| Regurgitation severity (%) | ||
| None | 45.8 | 47.0 |
| Mild | 21.5 | 19.5 |
| Moderate | 24.3 | 24.8 |
| Severe | 8.3 | 8.6 |
BMI, body mass index; LA, Los Angeles.