Abstract 093 Accuracy of serological tests used to refer for biopsy
| Serological test | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Biopsies taken/2000 | Missed CD/2000 |
|---|---|---|---|---|---|---|
| +, positive. | ||||||
| Only TTG+ | 90.9 | 90.1 | 28.6 | 99.6 | 245 | 7 |
| Only EMA+ | 87.0 | 98.0 | 64.4 | 99.4 | 104 | 10 |
| If TTG+ and then EMA+ | 85.7 | 98.6 | 71.7 | 99.4 | 92 | 11 |
| Either TTG or EMA+ | 92.2 | 91.1 | 29.3 | 99.7 | 242 | 6 |
| IgG gliadin+ | 47.3 | 95.9 | 31.5 | 97.9 | 114 | 40 |
| IgA gliadin+ | 49.4 | 89.6 | 16.0 | 97.8 | 238 | 39 |