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Table 4 Completeness and PPV for post-diagnosis test events in VA administrative data versus EHR/QI manual data abstraction

From: The accuracy and completeness for receipt of colorectal cancer care using Veterans Health Administration administrative data

Test Completeness (95 % CI) Positive predictive valuea (95 % CI) EHR/QI and VA administrative data Only EHR/QI data Only VA administrative data
Colonoscopy 0.760 (0.701, 0.811) 0.611 (0.551, 0.667) 174 55 111
Carcinoembryonic antigen 0.263 (0.238, 0.290) 0.541 (0.498, 0.584) 294 823 249
Physician visit 0.846 (0.831, 0.860) 0.319 (0.307, 0.330) 2,027 369 4,334
  1. aA lower positive predictive value indicated that more events were identified in the administrative data that were not also identified by C4