Table 2:

BUSA Accuracy

Accuracy of BUSA	Point Estimate	95% Confidence Interval
Prevalence	0.45	0.37	0.53
Sensitivity	0.39	0.28	0.52
Specificity	0.90	0.81	0.95
PPV	0.75	0.57	0.87
NPV	0.65	0.55	0.73

BUSA: Bedside Ultrasound for Appendicitis

PPV: Positive Predictive Value

NPV: Negative Predictive Value