Background:There is controversy whether management of blood cholesterol should be based
or not on LDL-cholesterol (LDL-c) target concentrations.Objectives:To compare the estimated impact of different lipid-lowering strategies, based
or not on LDL-c targets, on the risk of major cardiovascular events in a
population with higher cardiovascular risk.Methods:We included consecutive individuals undergoing a routine health screening in
a single center who had a 10-year risk for atherosclerotic cardiovascular
disease (ASCVD) ≥ 7.5% (pooled cohort equations, ACC/AHA, 2013). For
each individual, we simulated two strategies based on LDL-c target (≤
100 mg/dL [Starget-100] or ≤ 70 mg/dL
[Starget-70]) and two strategies based on percent LDL-c
reduction (30% [S30%] or 50% [S50%]).Results:In 1,897 subjects (57 ± 7 years, 96% men, 10-year ASCVD risk 13.7
± 7.1%), LDL-c would be lowered from 141 ± 33 mg/dL to 99
± 23 mg/dL in S30%, 71 ± 16 mg/dL in
S50%, 98 ± 9 mg/dL in Starget-100, and 70
± 2 mg/dL in Starget-70. Ten-year ASCVD risk would be
reduced to 8.8 ± 4.8% in S50% and 8.9 ± 5.2 in
Starget-70. The number of major cardiovascular events
prevented in 10 years per 1,000 individuals would be 32 in S30%,
31 in Starget-100, 49 in S50%, and 48 in
Starget-70. Compared with Starget-70,
S50% would prevent more events in the lower LDL-c tertile and
fewer events in the higher LDL-c tertile.Conclusions:The more aggressive lipid-lowering approaches simulated in this study, based
on LDL-c target or percent reduction, may potentially prevent approximately
50% more hard cardiovascular events in the population compared with the less
intensive treatments. Baseline LDL-c determines which strategy (based or not
on LDL-c target) is more appropriate at the individual level.