American Journal of Epidemiology Advance Access originally published online on June 22, 2005
American Journal of Epidemiology 2005 162(2):196; doi:10.1093/aje/kwi177
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American Journal of Epidemiology Copyright © 2005 by the Johns Hopkins Bloomberg School of Public Health All rights reserved
LETTERS TO THE EDITOR |
THE AUTHORS REPLY
1 Division of Biostatistics, Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco, CA 94143-0560
2 Program in Medical Ethics, Department of Medicine, School of Medicine, University of California, San Francisco, CA 94143-0560
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We thank Halpern et al. (1
) for responding to our paper in the Journal (2
). We appreciate this opportunity to emphasize key points concerning the per-participant formulation, altruistic satisfaction, and the scope of our paper.
Halpern et al. in fact reassert the very premises we used to show that the argument for condemning low-power studies fails on its own terms. They propose