From: Identifying work related injuries: comparison of methods for interrogating text fields
Approach | Number of true cases identified | Number of false positives | Sensitivity | Specificity | PPV |
---|---|---|---|---|---|
Text Search Approaches | Â | Â | Â | Â | Â |
   Basic keyword search | 12,457 | 1,916 | 0.58 | 0.99 | 0.87 |
   Index search | 13,252 | 23,434 | 0.62 | 0.87 | 0.36 |
   Keyword OR index | 17,004 | 24,416 | 0.79 | 0.87 | 0.41 |
Content Analytic Approaches | Â | Â | Â | Â | Â |
   Binary classification | 17,299 | 13,894 | 0.81 | 0.93 | 0.55 |
   Adjusted probability classification | 16,424 | 8,699 | 0.77 | 0.95 | 0.65 |