Baseline characteristics
Figure 1 of the supplementary appendix shows the flow chart of included
patients. We included a total of 36,885 patients without known heart
disease from both institutions with a median SCD score of 9% (IQR
3.5-22). Table 1 shows the baseline characteristics by SCD risk
category. For both institutions those in the highest deciles of SCD risk
were older, more likely to be male, and more likely to have
cardiovascular risk factors (p<0.01). Our random sample had
100% accuracy of the CV risk factors, CV diseases and CV procedures
when compared to the medical record. Those in the highest SCD risk had a
7% mortality rate compared to 6% in the intermediate risk and 5% in
low SCD risk.