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American Journal of Epidemiology Advance Access originally published online on November 16, 2006
American Journal of Epidemiology 2007 165(2):232-233; doi:10.1093/aje/kwk095
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American Journal of Epidemiology Copyright © 2006 by the Johns Hopkins Bloomberg School of Public Health All rights reserved; printed in U.S.A.

LETTERS TO THE EDITOR

THE AUTHORS REPLY

Diane S. Lauderdale1, Kristen L. Knutson1, Paul J. Rathouz1, Lijing L. Yan2,3, Stephen B. Hulley4, Stephen Sidney5 and Kiang Liu3

1 Department of Health Studies, University of Chicago, Chicago, IL 60637
2 Department of Health Economics and Management, Guanghua School of Management, Peking University, Beijing 100871, China
3 Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
4 Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA 94107
5 Division of Research, Kaiser Permanente Northern California, Oakland, CA 94612

(e-mail: lauderdale@health.bsd.uchicago.edu)

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We thank Hale and Do (1) for their comments on our paper (2). The authors suggest that we use multinomial logistic rather than linear regression to model sleep duration since previous studies have found higher . . . [Full Text of this Article]


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