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meta-analysis:Effects of statins on stroke prevention in patients with and without coronary heart disease: A meta-analysis of randomized controlled trials

作者:国际循环网   日期:2004/11/11 0:00:00

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Am J Med 15 Oc 2004, 117(8 ): 596-606 Matthias Briel, , Marco Studer, , Tracy R. Glass, , Heiner C. Bucher, a,* Purpose To assess if lipid-lowering interventions (statins, fibrates, resins, n-3 fatty acids, diet) prevent nonfatal and fatal strokes in patients with and without coronary heart disease.

Methods We systematically searched the literature up to August 2002 to retrieve all randomized controlled trials of lipid-lowering interventions that reported nonfatal and fatal stroke and mortality data. The search yielded 65 trials with 200,607 patients for a meta-analysis to determine whether treatment effects differed between types of lipid-lowering interventions and between patient samples with and without coronary heart disease. Results The risk ratio for nonfatal and fatal stroke for statins as compared with control interventions was 0.82 (95% confidence interval [CI]: 0.76 to 0.90). The corresponding risk ratios for statins as compared with control were 0.75 (95% CI: 0.65 to 0.87) for patients with coronary heart disease and 0.77 (95% CI: 0.62 to 0.95) for those without coronary heart disease. The confidence intervals of risk ratios for nonfatal and fatal stroke associated with fibrates, resins, n-3 fatty acids, and diet all included 1, as did the confidence intervals for these interventions in patients with and without coronary heart disease. Weighted meta-regression analysis suggested a stronger association of stroke reduction with statin treatment than with the extent of cholesterol reduction.

Conclusion This meta-analysis suggests that statins reduce the incidence of stroke in patients with and without coronary heart disease.

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