Likelihood of pathological pH monitoring according to number of positive responses on the four item heartburn questionnaire in 247 patients with functional dyspepsia
| Positive responses on heartburn questionnaire | Odds ratio | 95% CI | p Value |
|---|---|---|---|
| 1 | 1.880 | 1.034–3.653 | 0.02 |
| 2 | 3.940 | 1.838–8.445 | 0.0004 |
| 3 | 6.771 | 3.052–15.020 | <0.0001 |
| 4 | 28.388 | 8.872–90.836 | <0.0001 |