Table 3 Automatically extracted ICPC codes for the index predictors in the CHA2DS2-VASc model and the definition of the reference predictors used for manually scrutinizing the electronic patient file
Predictor | ICPC code(s) for index predictors | Definition for reference predictors |
|---|---|---|
Congestive heart failure | K77 heart failure | Signs and symptoms suggestive of heart failure, with structural or functional abnormalities on echocardiography, either with preserved or reduced ejection fraction |
Hypertension | K86 hypertension without organ damage K87 hypertension with organ damage/secondary hypertension | Repeated systolic blood pressure measurement of 140 mmHg or higher |
Age | Age in years | Age in years |
Diabetes | T90 type 1 and type 2 diabetes | Repeated fasting blood glucose measurement of ≥ 7.0 mmol/L (126 mg/dL) or a non-fasting glucose measurement of ≥ 11.1 mmol/L (200 mg/dL) |
Stroke/TIA | K89 TIA K90 cerebrovascular accident (stroke) | Focal neurological deficit of sudden onset lasting > 24 or < 24 h, respectively |
Vascular disease | K74 angina pectoris K75 acute myocardial infarction K76 other chronic ischemic heart disease K91 atherosclerosis K92 other peripheral arterial disease K03 other pain suspected to originate from the cardiovascular tract | • Coronary heart disease: prior myocardial infarction (both ST-elevated myocardial infarction or non-ST-elevated myocardial infarction), angina pectoris or prior percutaneous coronary intervention (PCI) or coronary artery bypass graft surgery (CABG) • Peripheral artery disease: symptoms of intermittent claudication with ankle-branchial index ≤ 0.9 or prior surgery or percutaneous intervention on the abdominal or thoracic aorta or lower extremity vessels Previous thrombo-embolism |
Sex category | Female sex | Female sex |