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American Journal of Epidemiology Advance Access originally published online on June 1, 2006
American Journal of Epidemiology 2006 164(1):19-20; doi:10.1093/aje/kwj201
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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.

Response to Invited Commentary

Lauderdale et al. Respond to "How Much Do We Really Sleep?"

Diane S. Lauderdale1, Kristen L. Knutson2, Lijing L. Yan3,4, Paul J. Rathouz1, Stephen B. Hulley5, Steve Sidney6 and Kiang Liu3

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

Correspondence to Dr. Diane S. Lauderdale, Department of Health Studies, University of Chicago, 5841 South Maryland Avenue MC 2007, Chicago, IL 60637 (e-mail: Lauderdale@uchicago.edu).

Received for publication March 20, 2006. Accepted for publication April 14, 2006.

The first 10% of the full text of this article appears below.

We enjoyed reading Stuart Quan's wide-ranging and poetic perspective on the importance of sleep, and we thank him for his insightful commentary (1Go) on our paper (2Go). Noting the unexpectedly low average sleep duration in our study, he touched upon two possible sources of bias; both are intriguing suggestions. The first is that actigraphy . . . [Full Text of this Article]


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Related articles in Am. J. Epidemiol.:

Objectively Measured Sleep Characteristics among Early-Middle-Aged Adults: The CARDIA Study
Diane S. Lauderdale, Kristen L. Knutson, Lijing L. Yan, Paul J. Rathouz, Stephen B. Hulley, Steve Sidney, and Kiang Liu
Am. J. Epidemiol. 2006 164: 5-16. [Abstract] [FREE Full Text]