Table 1.
IDGP: Reproducibility (test- retest reliability).
| DIAGNOSTIC CATEGORIES | K+ | ITEM | K+ |
| Dyspepsia | 0.67 | 1 | 0.724 |
| 4 | 0.609 | ||
| 18 | 0.603 | ||
| Frequent dyspepsia | 0.61 | 2 | 0.358 |
| 5 | 0.694 | ||
| 19 | 0.691 | ||
| GERD like symptoms | 0.69 | 7 | 0.746 |
| 10 | 0.694 | ||
| 13 | 0.314 | ||
| 14 | 0.730 | ||
| 15 | 0.652 | ||
| 21 | 0.658 | ||
| 24 | 0.749 | ||
| Frequent GERD like symptoms | 0.71 | 8 | 0.700 |
| 11 | 0.742 | ||
| 16 | 0.698 | ||
| 22 | 0.444 | ||
| Consultation behaviour | 0.49 | 3 | 0.413 |
| 6 | 0.405 | ||
| 9 | 0.336 | ||
| 12 | 0.481 | ||
| 17 | 0.688 | ||
| 20 | 0.306 | ||
| 23 | 0.278 | ||
| 26 | 0.722 | ||
| Investigation for organic gastric disease | 0.80 | 28 | 0.653 |
| 29 | 0.950 | ||
| Past diagnosis of stomach or duodenal ulcer | 27 | 0.688 | |
| Open question | 30 | 0.615 | |
+: Kappa coefficient