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:2/13/2016)... ... ... Many individuals looking to lead a healthy lifestyle have decreased carbohydrate consumption and ... Fitness has delved into this niche allowing those giving up their beloved pasta a ... 30 grams of protein and only 7 grams of carbohydrates per 50 gram serving--a ...
(Date:2/13/2016)... Salt Lake City, Utah (PRWEB) , ... February 13, 2016 , ... When an ... kids, Host Parents aren’t always sure what they are in for and they are often ... Pairs are more than they were hoping for. This year’s Au Pair of the Year ...
(Date:2/12/2016)... ... February 12, 2016 , ... The law firm of Morrow, ... Parishes. The purpose of these scholarships is to encourage applicants to pursue a ... seek employment within these two parishes. , “We have available jobs in St. ...
(Date:2/12/2016)... (PRWEB) , ... February 12, 2016 , ... Each year, ... will be held in Anaheim, CA at the Anaheim Convention Center. Almost 10,000 physical ... see new therapy products in action, learn more about their chosen field and network ...
(Date:2/12/2016)... FL (PRWEB) , ... February 12, 2016 , ... ... as a Service (WaaS), today announced the integration of Clarity Intelligence Platform (CIP) ... channel partners to offer real-time business intelligence (BI) to their small and medium ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... , Feb. 12, 2016  Diplomat Pharmacy, Inc. (NYSE: DPLO ) is pleased to announce ... Management and Payor Strategies effective Jan. 23, 2016. ... ... ... Specialty Pharmacy ...
(Date:2/12/2016)... NY , Feb. 12, 2016 /PRNewswire/ - Demers Ambulances announces ... to Okaloosa County Emergency ... Type III ambulances and one LT2 van. Quality Emergency Vehicles ... dealer, is responsible for the sale.  This is the latest ... LaFortune , Executive Vice President at Demers. --> ...
(Date:2/12/2016)... --  HeartWare International, Inc . (NASDAQ: HTWR ) ... its financial results for the three and 12 months ... at 8:00 a.m. ET.  The company plans to release ... webcast.  On the conference call and webcast, management will ... quarter and business outlook.   --> ...
Breaking Medicine Technology: