Table 2. Identification of the appendix.
| Proven appendicitis |
No appendicitis |
|||||
| Positive oral contrast (Gastrografin) | Neutral oral contrast (VoLumen) | p-Valuea | Positive oral contrast (Gastrografin) | Neutral oral contrast (VoLumen) | p-Valuea | |
| Reader 1 | 100/101 (99%) | 98/98 (100%) | 1.00 | 95/99 (96%) | 92/102 (90%) | 0.17 |
| Reader 2 | 97/101 (96%) | 92/98 (94%) | 0.53 | 89/99 (90%) | 79/102 (77%) | 0.02 |
| Reader 3 | 98/101 (97%) | 96/98 (98%) | 1.00 | 88/99 (89%) | 80/102 (78%) | 0.06 |
| Reader 4 | 99/101 (98%) | 96/98 (98%) | 1.00 | 88/99 (89%) | 81/102 (79%) | 0.08 |
| Reader 5 | 94/101 (93%) | 92/98 (94%) | 1.00 | 84/99 (85%) | 68/102 (67%) | 0.003 |
| Average of readers | 488/505 (96.6%) | 474/490 (96.7%) | 1.00 | 444/495 (89.7%) | 400/510 (78.4%) | <0.001 |
aFisher's exact test.