American Journal of Epidemiology Advance Access published online on December 21, 2007
American Journal of Epidemiology, doi:10.1093/aje/kwm372
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American Journal of Epidemiology © The Author 2007. Published by the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org.
Letter to the Editor |
RE: LETTER TO THE EDITOR ON "BIAS IN CLINICAL INTERVENTION RESEARCH"
1 Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016-3240
2 Department of Medicine, New York University School of Medicine, New York, NY 10016-3240
3 Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016-3240
(e-mail: michael.marmor@med.nyu.edu)
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Hemilä's letter (1) regarding Gluud's review article (2) asserted that "... there is no evidence of large and universal placebo effects" (1, p. 1219). Because Gluud's review focused on biases in intervention research generally, Hemilä's letter implies that placebos and the maintenance of blinding may not be critical to intervention research. Yet, Hróbjartsson and Gøtzsche's article (3),