Journal of Clinical Epidemiology
Volume 60, Issue 11 , Pages 1123-1126 , November 2007

Publication bias for CAM trials in the highest impact factor medicine journals is partly due to geographical bias

  • Amit Sood

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • Corresponding Author InformationCorresponding author. Tel./fax: 507-284-5370.
    • ,
  • Kayla Knudsen

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • ,
  • Richa Sood

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • ,
  • Dietlind L. Wahner-Roedler

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • ,
  • Sunni A. Barnes

      Affiliations

    • Division of Biostatistics, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • ,
  • Aditya Bardia

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA
    • ,
  • Brent A. Bauer

      Affiliations

    • Division of General Internal Medicine, Mayo Clinic College of Medicine, 200 First Street S.W., Rochester, MN 55905, USA

,Accepted 20 January 2007.

References 

  1. Ernst E, Pittler MH. Alternative therapy bias. Nature. 1997;385:480
  2. Schmidt K, Pittler MH, Ernst E. Bias in alternative medicine is still rife but is diminishing. BMJ. 2001;323:1071
  3. Schmidt K, Pittler MH, Ernst E. A profile of journals of complementary and alternative medicine. Swiss Med Wkly. 2001;131:588–591
  4. Vickers A, Goyal N, Harland R, Rees R. Do certain countries produce only positive results? A systematic review of controlled trials. Control Clin Trials. 1998;19:159–166
  5. Bent S, Kane C, Shinohara K, Neuhaus J, Hudes ES, Goldberg H, et al. Saw palmetto for benign prostatic hyperplasia. N Engl J Med. 2006;354:557–566
  6. Turner RB, Bauer R, Woelkart K, Hulsey TC, Gangemi JD. An evaluation of Echinacea angustifolia in experimental rhinovirus infections. N Engl J Med. 2005;353:341–348
  7. Raitt MH, Connor WE, Morris C, Kron J, Halperin B, Chugh SS, et al. Fish oil supplementation and risk of ventricular tachycardia and ventricular fibrillation in patients with implantable defibrillators: a randomized controlled trial. JAMA. 2005;293:2884–2891
  8. Linde K, Streng A, Jurgens S, Brinkhaus B, Witt C, Wagenpfeil S, et al. Acupuncture for patients with migraine: a randomized controlled trial. JAMA. 2005;293:2118–2125
  9. Szegedi A, Kohnen R, Dienel A, Kieser M. Acute treatment of moderate to severe depression with hypericum extract WS 5570 (St John's wort): randomised controlled double blind non-inferiority trial versus paroxetine. BMJ. 2005;330:503
  10. Reginster JY, Deroisy R, Rovati LC, Lee RL, Lejeune E, Bruyere O, et al. Long-term effects of glucosamine sulphate on osteoarthritis progression: a randomised, placebo-controlled clinical trial. Lancet. 2001;357:251–256
  11. Bardia A, Wahner-Roedler DL, Erwin PL, Sood A. Search strategies for retrieving complementary and alternative medicine clinical trials in oncology. Integr Cancer Ther. 2006;5:202–205
  12. Available at http://nccam.nih.gov/health/whatiscam/2005Accessed Jan. 12, 2007
  13. Pittler MH, Abbot NC, Harkness EF, Ernst E. Location bias in controlled clinical trials of complementary/alternative therapies. J Clin Epidemiol. 2000;53:485–489

PII: S0895-4356(07)00032-7

doi: 10.1016/j.jclinepi.2007.01.009

Journal of Clinical Epidemiology
Volume 60, Issue 11 , Pages 1123-1126 , November 2007

Article Tools