American Journal of Epidemiology Advance Access originally published online on October 8, 2007
American Journal of Epidemiology 2007 166(11):1356-1357; doi:10.1093/aje/kwm287
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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.
LETTERS TO THE EDITOR |
TWO AUTHORS REPLY
National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, GA 30341
(e-mail: LBeck@cdc.gov)
| The first 10% of the full text of this article appears below. |
We would like to thank Dr. Marmor (1) for his comments on our paper (2). Our study used National Household Travel Survey (NHTS) data to estimate person-trips by six modes of travel, including walking. Although we agree with the author that