Appendix Table 4.
Predicted and Observed Events Using the AHA-ACC-ASCVD Risk Score Among MESA Participants, With Censoring at Cholesterol-Lowering Medication Use or Revascularization*
Variable | Predicted Events, n (%) | Observed Events, n (%) | Signed Absolute Difference | Discordance, %† | c-Statistic | Discrimination Slope |
---|---|---|---|---|---|---|
Total (n = 3248) | 224.2 (6.90) | 99 (3.05) | 3.85 | 126 | 0.76 | 0.08 |
Men (n = 1513) | 136.8 (9.04) | 57 (3.77) | 5.27 | 140 | 0.75 | 0.08 |
Women (n = 1735) | 87.4 (5.04) | 42 (2.42) | 2.61 | 108 | 0.74 | 0.08 |
ACC = American College of Cardiology; AHA = American Heart Association; ASCVD = atherosclerotic cardiovascular disease; MESA = Multi-Ethnic Study of Atherosclerosis.
Because the exact day of cholesterol-lowering medication use was not known, participants were censored at the last time observed not to be receiving this medication. Participants who reported cholesterol medication use at examination 1 or 2 were therefore excluded from the analysis.
Percentage discordance calculation: ([{expected percentage − observed percentage}/observed percentage] × 100).