Ranked individual items from the RSI
| Rank mean score | RSI item | Mean score |
| 1 | Lump in throat | 3.51 |
| 2 | Throat clearing | 3.44 |
| 3 | Excess throat mucus | 2.85 |
| 4 | Troublesome cough | 2.49 |
| 5 | Hoarseness | 2.39 |
| 6 | Coughing lying down | 2.12 |
| 7 | Heartburn, chest pain, indigestion or stomach acid coming up | 1.79 |
| 8 | Difficulty swallowing | 1.68 |
| 9 | Breathing difficulties | 1.58 |
RSI, Reflux Symptom Index.