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Association of LDL Cholesterol, Non-HDL Cholesterol, and Apolipoprotein B Levels With Risk of Cardiovascular Events Among Patients Treated With Statins A Meta-analysis

Association of LDL Cholesterol, Non-HDL Cholesterol, and Apolipoprotein B Levels With Risk of Cardiovascular Events Among Patients Treated With Statins A Meta-analysis

Research output: Contribution to journalScientific review

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Authors

  • S. Matthijs Boekholdt
  • Benoit J. Arsenault
  • Samia Mora
  • Terje R. Pedersen
  • John C. LaRosa
  • Paul J. Nestel
  • R. John Simes
  • Paul Durrington
  • Graham A. Hitman
  • K. M. A. Welch
  • David A. DeMicco
  • Aeilko H. Zwinderman
  • Michael B. Clearfield
  • John R. Downs
  • Andrew M. Tonkin
  • Helen M. Colhoun
  • Antonio M. Gotto
  • Paul M. Ridker
  • John J. P. Kastelein

Research units

    Info

    Original languageEnglish
    Pages1302-1309
    Number of pages8
    JournalJAMA: the Journal of the American Medical Association
    Journal publication date28 Mar 2012
    Volume307
    Issue12
    DOIs
    StatePublished

    Abstract

    Context The associations of low-density lipoprotein cholesterol (LDL-C), non-high-density lipoprotein cholesterol (non-HDL-C), and apolipoprotein B (apoB) levels with the risk of cardiovascular events among patients treated with statin therapy have not been reliably documented.

    Objective To evaluate the relative strength of the associations of LDL-C, non-HDL-C, and apoB with cardiovascular risk among patients treated with statin therapy.

    Design Meta-analysis of individual patient data from randomized controlled statin trials in which conventional lipids and apolipoproteins were determined in all study participants at baseline and at 1-year follow-up.

    Data Sources Relevant trials were identified by a literature search updated through December 31, 2011. Investigators were contacted and individual patient data were requested and obtained for 62154 patients enrolled in 8 trials published between 1994 and 2008.

    Data Extraction Hazard ratios (HRs) and corresponding 95% CIs for risk of major cardiovascular events adjusted for established risk factors by 1-SD increase in LDL-C, non-HDL-C, and apoB.

    Results Among 38 153 patients allocated to statin therapy, 158 fatal myocardial infarctions, 1678 nonfatal myocardial infarctions, 615 fatal events from other coronary artery disease, 2806 hospitalizations for unstable angina, and 1029 fatal or nonfatal strokes occurred during follow-up. The adjusted HRs for major cardiovascular events per 1-SD increase were 1.13 (95% CI, 1.10-1.17) for LDL-C, 1.16 (95% CI, 1.12-1.19) for non-HDL-C, and 1.14 (95% CI, 1.11-1.18) for apoB. These HRs were significantly higher for non-HDL-C than LDL-C (P=.002) and apoB (P=.02). There was no significant difference between apoB and LDL-C (P=.21).

    Conclusion Among statin-treated patients, on-treatment levels of LDL-C, non-HDL-C, and apoB were each associated with risk of future major cardiovascular events, but the strength of this association was greater for non-HDL-C than for LDL-C and apoB. JAMA. 2012;307(12):1302-1309 www.jama.com

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