Table 6 Evaluation of ultrasound
Ultrasound findings | Pre-protocol (129) | Post protocol year 1 (382) | Post protocol year 2 (345) |
|---|---|---|---|
Appendix not seen | 74 (57%) | 232 (60%) | 229 (60%) |
Positive appendicitis | 23 (53%) | 26 (11%) | 33 (14%) |
Normal appendix | 30 (23%) | 88 (23%) | 53 (23%) |
Positive appendicitis | 1 (1%) | 0 | 0 |
Positive appendicitis | 21 (16%) | 53 (14%) | 63 (28%) |
Negative appendix | 3 (2%) | 6 (3%) | 10 (4%) |
Sensitivity | 42% | 81% | 62% |
Specificity | 96% | 97% | 86% |