Lipids, Apolipoproteins, and Their Ratios in Relation to Cardiovascular Events With Statin Treatment

Abstract
Background— Low-density lipoprotein (LDL) cholesterol is the principal target of lipid-lowering therapy, but recent evidence has suggested more appropriate targets. We compared the relationships of on-treatment levels of LDL cholesterol, non–high-density lipoprotein (HDL) cholesterol, and apolipoprotein B, as well as ratios of total/HDL cholesterol, LDL/HDL cholesterol, and apolipoprotein B/A-I, with the occurrence of cardiovascular events in patients receiving statin therapy. Methods and Results— A post hoc analysis was performed that combined data from 2 prospective, randomized clinical trials in which 10 001 (“Treating to New Targets”) and 8888 (“Incremental Decrease in End Points through Aggressive Lipid Lowering”) patients with established coronary heart disease were assigned to usual-dose or high-dose statin treatment. In models with LDL cholesterol, non-HDL cholesterol and apolipoprotein B were positively associated with cardiovascular outcome, whereas a positive relationship with LDL cholesterol w...

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