Navigation Links
Drop in breast cancer incidence linked to hormone use, not mammograms
Date:8/14/2007

A recent decline in breast cancer incidence is unlikely to be caused by a decrease in mammography screening, according to a study published online August 14 in the Journal of the National Cancer Institute. It is more likely due to the drop in postmenopausal hormone use.

There has been a recent, rapid decline in postmenopausal hormone therapy use since 2002 when the Womens Health Initiative study found that hormone therapy was associated with an increased risk of breast cancer. Recent data has linked a decrease in breast cancer incidence over the last few years to this drop in hormone use, but this explanation remains controversial. Some researchers have said it is unclear whether the drop was related to the decline in hormone therapy use or a decrease in mammography screening over the same period.

Karla Kerlikowske, M.D., of the University of California, San Francisco and colleagues from the Breast Cancer Surveillance Consortium addressed this question by examining breast cancer rates in a population of women collected from seven mammography registries located in the U.S. who had received screening mammograms between 1997 and 2003. They collected data on over 600,000 mammograms performed on women ages 50 to 69. This is the first study to investigate breast cancer incidence and hormone therapy use in a population of women undergoing routine mammograms.

Between 2000 and 2003, use of hormone therapy among the study population declinedby 7 percent a year between 2000 and 2002, then by 34 percent a year between 2002 and 2003. Over the same period, breast cancer incidence rates declined annually by 5 percent. Estrogen-receptor positive breast cancer rates fell by 13 percent each year from 2001 to 2003.

Our results suggest that a decline in postmenopausal hormone therapy use has contributed to the decline in breast cancer incidence in the United States and that the small decline in screening mammography observed in the United States is unlikely to explain the national declines in breast cancer incidence, the authors write.


'/>"/>

Contact: Liz Savage
jncimedia@oxfordjournals.org
301-841-1287
Journal of the National Cancer Institute
Source:Eurekalert

Related medicine news :

1. Consensus on "Combination Therapy" for Breast Cancer
2. Breast cancer treatment to be determined by gene test
3. Ductal lavage may detect early breast cancer
4. Breast Feeding prevents obesity later on in life
5. Exclusive breast-feeding advised for six months in infants recommends World Health Organization
6. Breast milk is essential
7. Micro-camera provides new breast imaging technique
8. Breast Cancer Surgery Causes Psychological problems
9. Breast cancer evidence
10. Support therapy helps breast cancer patients
11. Letrozole Beats Tamoxifen in Breast Cancer Therapy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/31/2016)... NJ (PRWEB) , ... May 31, 2016 , ... Dr. ... Medicine and Dentistry of New Jersey in the class of 1986, where he graduated ... cosmetic dentistry at his current location in Livingston since 1989. He has been a ...
(Date:5/31/2016)... ... 2016 , ... CURE Media Group , the nation’s ... Cancer and Careers to its Advocacy Spotlight Partnership program ... careers while fighting cancer. , As partners, both organizations will supply timely information ...
(Date:5/30/2016)... ... May 30, 2016 , ... ... inside of FCPX," said Christina Austin - CEO of Pixel Film Studios. ... within Final Cut Pro X. Choose from abstract transitions to more simple wipes ...
(Date:5/30/2016)... ... ... Another ER facility operated by First Choice Emergency Room opened ... and is open 24 hours daily. , First Choice Emergency Room hosted a ribbon ... Jasper High School band entertained attendees and accepted First Choice Emergency Room’s donation on ...
(Date:5/29/2016)... ... , ... "With 30 unique self-animating web themed intros and complete control over ... said Christina Austin - CEO of Pixel Film Studios. , ProIntro Web Volume ... Final Cut Pro X. Pixel Film Studios’ minimalistic titles allow users to add a ...
Breaking Medicine News(10 mins):
(Date:5/31/2016)... 2016 , Isansys  Lifecare, a new ... Status Engine wireless patient monitoring platform, as it ships more ... Germany , Scotland and ... generation system, launched earlier this year, is now being used ... , This new technology significantly enhances the user ...
(Date:5/30/2016)... 30, 2016 Transparency Market Research ... Visualization Systems Market - Global Industry Analysis, Size, Share, ... the report, the global advanced (3D/4D) visualization systems market ... is anticipated to expand at a CAGR of 6.4% ... in 2024. Advanced (3D/4D) visualization systems have ...
(Date:5/30/2016)... , May 30, 2016 ... to reach USD 7.3 billion by 2024, according ... Inc. The increasing natality rate, the growing malnutrition ... as cancer and gastro-intestinal tract diseases are expected ...      (Logo: http://photos.prnewswire.com/prnh/20150105/723757 ) ...
Breaking Medicine Technology: