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