Statins in Primary Prevention: Welcome to the Gray Zone

good-healthThey compared the observed and expected events for the ASCVD score with three Framingham-based scores and the Reynolds risk score in 4227 MESA subjects aged 50 to 74 years over a 10-year follow-up.

Using this real-world population, they found four of the five risk scores overestimated risk. Calibration was worse in men: overestimates ranged from 37% to 154%. In women, three of four scores overestimated risk by 46% to 67%, and the Reynolds Risk score underestimated risk by 21%.

It’s worth saying this another way: when the ACC/AHA ASCVD score predicted event rates of 7.5 to 10%—a range deemed above the statin-benefit cutoff—the actual events were just 3%.

via Statins in Primary Prevention: Welcome to the Gray Zone.

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