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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
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BMC Health Services Research

ISSN: 1472-6963

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