Influence of Pravastatin and Plasma Lipids on Clinical Events in the West of Scotland Coronary Prevention Study (WOSCOPS)

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The West of Scotland Coronary Prevention Study was a primary prevention trial that demonstrated the effectiveness of pravastatin (40 mg/d) in reducing morbidity and mortality from coronary heart disease (CHD) in moderately hypercholesterolemic men. The present analysis examines the extent to which differences in LDL and other plasma lipids both at baseline and on treatment influenced CHD risk reduction.


We conclude that the treatment effect of 40 mg/d of pravastatin is proportionally the same regardless of baseline lipid phenotype. There is no CHD risk reduction unless LDL levels are reduced, but a fall in the range of 24% is sufficient to produce the full benefit in patients taking this dose of pravastatin. LDL reduction alone does not appear to account entirely for the benefits of pravastatin therapy. (Circulation. 1998;97:1440-1445.)

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