Table 5.
Comparison of test characteristics of cutoff values of AS, mAS, PAS, mPAS and LS
| Score | Cut-off | # below cut-off with appendicitis | # above cut-off without appendicitis | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|---|---|---|
| Alvarado Score | 5 | 8/63 (12.7 %) | 71/117 (60.7 %) | 85.2 | 43.7 | 39.3 | 87.3 | 56.1 |
| Modified Alvarado Score | 4 | 9/55 (16.4 %) | 80125 (64.0 %) | 83.3 | 36.5 | 36.0 | 83.6 | 50.6 |
| Pediatric Appendicitis Score | 6 | 10/81 (12.4 %) | 55/99 (55.6 %) | 81.5 | 56.4 | 44.4 | 87.7 | 63.3 |
| Modified Pediatric Appendicitis Score | 4 | 7/45 (15.6 %) | 8/135 (65.2 %) | 87.0 | 30.2 | 34.8 | 84.4 | 48.9 |
| Lintula Score | 16 | 22/124 (17.7 %) | 24/56 (42.9 %) | 59.3 | 80.1 | 57.1 | 82.3 | 73.2 |
PPV positive predictive value
NPV negative predictive value