Table 1 Measures of validity of type 2 diabetes code (ICPC-2, T90) in a primary care EHR database. Navarra EPIC-InterAct cohort
From: Validity of type 2 diabetes diagnosis in a population-based electronic health record database
Gold standard (diagnosis from multiple sources) | Total | ||
|---|---|---|---|
Information of EHR | T2DM yes | T2DM no | |
Code T90 yes | (A) TP True cases correctly identified in EHR | (B) FP Non-cases wrongly coded in EHR | (A + B) |
587 | 50 | 637 | |
Code T90 no | (C) FN True cases not identified in EHR | (D) TN True non-cases correctly identified in EHR | (C + D) |
11 | 7039 | 7050 | |
Total | (A + C) | (B + D) | (A + B + C + D) |
598 | 7089 | 7687 | |