Symptom prevalence (%) amongst patients with pharyngeal contamination whilst supine and upright
| Symptom | Patients with supine pharyngeal contamination# | Patients with upright pharyngeal contamination¶ |
| Regurgitation | 71.81 | 70.87 |
| Heartburn | 68.46 | 67.39 |
| Throat clearing | 67.79 | 66.09 |
| Cough | 62.75 | 64.35 |
| Dysphonia | 57.05 | 54.35 |
| Sore throat | 47.32 | 46.09 |
| Mucus | 41.61 | 44.78 |
| Dyspnoea all | 38.26 | 42.17 |
| Globus sensation | 36.24 | 36.96 |
| Dysphagia (typical) | 28.52 | 28.70 |
| Laryngospasm | 23.15 | 28.26 |
| Bloating | 22.82 | 26.96 |
| Chest pain atypical | 22.82 | 25.22 |
| Regurgitation (throat) | 22.15 | 23.04 |
| Sleep disturbance | 21.81 | 22.17 |
| Dysphagia (slow) | 18.79 | 21.74 |
| Dyspnoea (exercise induced) | 14.09 | 16.52 |
| Early satiety | 10.07 | 13.48 |
| Flatus | 6.71 | 6.52 |
| Voice change | 4.70 | 5.22 |
| Dyspnoea (post prandial) | 3.69 | 4.35 |
| Regurgitation (low) | 3.69 | 3.91 |
| Odynophagia | 2.68 | 3.91 |
#: n=230; ¶: n=298.