Validation of Asthma Algorithm

Algorithm Type: 
Case, Control
Institution: 
CHOP
Implementation Details: 

Cases: We reviewed 50 patients. We had 2 false positives for a PPV of 96%.  We are updating the algorithm according to our review, adding more ICD9 codes to exclusion criteria of cases (Pulmonary Hypertension, Rheumatoid Arthritis and Agenesis,hypoplasia and dysplasia of lung)

Controls: We reviewed 50 patients.  We had 1 false positive for a PPV of 98%.  We added Rheumatoid Arthritis to exclusion of controls.

Phenotype: 
Asthma
Dictionaries
Implementations/Datasets/
Cases (0) Actual Class (Expectation)
Predicted Class
(Observation)
True Positive: 
48.00
Correct result
False Positive: 
2.00
Unexpected result
Case Positive Predictive Value:
 96%
Control (0) Actual Class (Expectation)
Predicted Class
(Observation)
True Positive: 
49.00
Correct result
False Positive: 
1.00
Unexpected result
Control Positive Predictive Value:
 98%