Skip Navigation

This Article
Right arrow Extract Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Zhu, K.
Right arrow Articles by Forbes, D. S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Zhu, K.
Right arrow Articles by Forbes, D. S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Am J Epidemiol 2004; 159:1201-1202.
Copyright © 2004 by the Johns Hopkins Bloomberg School of Public Health

LETTERS TO THE EDITOR

FOUR AUTHORS REPLY

Kangmin Zhu1, Sandra Hunter2, Kathleen Payne-Wilks2 and Digna S. Forbes2

1 United States Military Cancer Institute, Washington, DC 20307
2 Meharry Medical College, Nashville, TN 37208

We thank Drs. O’Leary, Kabat, Schoenfeld, and Leske for their suggestions (1) on additional analysis of our data (2) on the number of years of use and the number of seasons of use per year of an electric bedding device. Our results from the additional analyses confined to women who kept an electric bedding device on most of the time are shown in table 1. It can be seen from the table that, after adjustment for the same potential confounders used in the original analysis, the risk of breast cancer tended to increase with the number of years of use and the number of seasons of use per year. These dose-response relations appeared more obvious after excluding women who used a device for more than 6 months per year (who were more likely to have used a heated water bed, which generates lower magnetic fields). These patterns in the odds ratio estimates are similar to those found in our original analyses. The analyses confined to women who used the device to warm the bed only, which were based on a small number of women in this group, did not show significant odds ratio estimates and trends (data not shown).


View this table:
[in this window]
[in a new window]
  		TABLE 1. Association of breast cancer with the use of electric bedding devices among African-American women aged 20–64 years after exclusion of those who used a device to warm the bed only, Tennessee, 1995–1998
 

REFERENCES

  1. O’Leary ES, Kabat GC, Schoenfeld ER, et al. Re: "Use of electric bedding devices and risk of breast cancer in African- American women." (Letter). Am J Epidemiol 2004;159:1201.[Free Full Text]
  2. Zhu K, Hunter S, Payne-Wilks K, et al. Use of electric bedding devices and risk of breast cancer in African-American women. Am J Epidemiol 2003;158:798–806.[Abstract/Free Full Text]

Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Am J EpidemiolHome page
K. Zhu, S. Hunter, K. Payne-Wilks, and D. S. Forbes
FOUR AUTHORS REPLY
Am. J. Epidemiol., June 15, 2004; 159(12): 1201 - 1202.
[Full Text] [PDF]

This Article
Right arrow Extract Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Zhu, K.
Right arrow Articles by Forbes, D. S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Zhu, K.
Right arrow Articles by Forbes, D. S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?