Table 1.
Demographic characteristics of patients diagnosed with gastro-oesophageal reflux disease on investigation: overall and without heartburn/regurgitation
| Characteristic | Total (n = 197) | No heartburn/regurgitation (n = 9) |
|---|---|---|
| Age (years) | 47.8 ± 13.3 | 48.7 ± 14.3 |
| Sex | ||
| Male | 112 (56.9) | 4 (44.4) |
| Female | 85 (43.1) | 5 (55.6) |
| BMI (kg/m2) | 27.5 ± 4.4 | 25.7 ± 4.4 |
| Helicobacter pylori positive | 46 (23.4) | 2 (22.2) |
| Hiatal hernia | 90 (45.7) | 2 (22.2) |
| Reflux oesophagitis | 118 (59.9) | 2 (22.2) |
| LA grade A | 61 (31.0) | 2 (22.2) |
| LA grade B | 49 (24.9) | 0 (0.0) |
| LA grade C | 6 (3.0) | 0 (0.0) |
| LA grade D | 2 (1.0) | 0 (0.0) |
| Barrett's oesophagus | 9 (4.6) | 0 (0.0) |
| Time with pH <4 for >5.5% of the time during 24 h | 137 (69.5) | 7 (77.8) |
| SAP >95% | 51 (25.9) | 0 (0.0) |
Values are mean ± SD or n (%).
BMI, body mass index; LA, Los Angeles classification; SAP, symptom association probability.