Phenotype: 
Algorithm Type: 
Case Only
Implementation Details: 

The rule based algorithm for Case 2 - MED(treatment with systemic antibiotics) was applied to potential patients with diagnosis of appendicitis. 20 random patients predicted as positive were selectd for manual chart review.

True Positive: 
18.00
False Positive: 
2.00
Case Positive Predictive Value: 
0.90