American Journal of Epidemiology Advance Access published online on October 8, 2007
American Journal of Epidemiology, doi:10.1093/aje/kwm287
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
American Journal of Epidemiology Published by the Johns Hopkins Bloomberg School of Public Health 2007.
Letter 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