Comparison of mean number of symptom episodes in the three groups classified on the basis of correlations between the omeprazole test (OT) and symptom association probability (SAP) or symptom sensitivity index (SSI)
| Omeprazole test positive/index negative | Concordant (both OT and index negative or positive) | Omeprazole test negative/index positive | |
|---|---|---|---|
| Values are mean (95% confidence interval). | |||
| SAP | 1.63 (1–2.25) | 4.27 (2.56–5.98) | 4.25 (3.45–5.05) |
| SSI | 1.33 (0.79–1.88) | 4.14 (2.55–5.73 ) | 4.25 (3.45–5.05) |