Cardiovascular diseases and risk factors
We used ICD 9 and 10 codes to identify patients with CAD, HF or atrial fibrillation. We selected hypertension and diabetes as the main risk factors and identified them using the same strategy. (see supplementary appendix table 1) Both CV risk factors and diseases were evaluated 3 months before or at the time of calculating the SCD score. The codes used have appropriate positive predictive value when compared to medical records.9, 1011-13