Table 7.
Performance of the scores to predict acute appendicitis in operated on male patients
| Alvarado | AIR | RIPASA | AAS | |
|---|---|---|---|---|
| Cut-off | >5 | >6 | >6.5 | >17 |
| Sensitivity | 73.4% | 54.2% | 87.3% | 33.3% |
| Specificity | 35.9% | 54.1% | 30.0% | 77.8% |
| Accuracy | 71.9% | 54.2% | 85.0% | 35.2% |
| PPV | 96.4% | 96.3% | 96.8% | 97.1% |
| NPV | 5.5% | 5.0% | 8.9% | 5.0% |
| AUC (95% c.i.) | 0.562 (0.491,0.634) | 0.536 (0.460,0.612) | 0.580 (0.501,0.659) | 0.567 (0.499,0.635) |
| P | 0.092 | 0.345 | 0.036 | 0.072 |
Bold value indicate statistically significant results. PPV, positive predictive value; NPV, negative predictive value; AUC, area under receiver operating characteristic (ROC) curve; c.i., confidence intervals; AIR, Appendicitis Inflammatory Response; RIPASA, Raja Isteri Pengiran Anak Saleha Appendicitis; AAS, Adult Appendicitis Score.