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:7/20/2017)... ... July 19, 2017 , ... A July 5th ... weight loss surgery patients who had received a body contouring procedure reported experiencing a ... clinic Beverly Hills Physicians (BHP), which provides both types of procedures, notes that this ...
(Date:7/20/2017)... ... July 20, 2017 , ... “Fidget”: a fun-filled, action-packed ... retired public high school music and drama teacher who was a summa cum laude ... including a “Teacher of the Year” award. After her retirement from public school, Lynn ...
(Date:7/18/2017)... Oaks, CA (PRWEB) , ... July 18, 2017 , ... ... Ph.D. scientist extracted cannabis oils, announced today that at the WORLDZ Summit, taking place ... will be speaking on the therapeutic benefits of medical cannabis for both pediatric and ...
(Date:7/18/2017)... ... July 18, 2017 , ... ClinicalTrials.gov ... Decisions Do You Need to Consider?, **An FDAnews Webinar**, Aug. 2, 2017 — ... Part 11, “Final Rule for Clinical Trials Registration and Results Information,” is a ...
(Date:7/18/2017)... (PRWEB) , ... July 18, 2017 , ... ... on a lien basis, partners with the best medical professionals who offer the ... and pre-approves each medical professional in their network, ensuring that each patient receives ...
Breaking Medicine News(10 mins):
(Date:7/11/2017)... Zymo Research Corp., also known as ,The Epigenetics Company, announced ... in a precise manner using the myDNAge ™ test. Based on ... of human genetics and biostatistics at the David Geffen School of ... Zymo Research,s proprietary DNAge ™ technology is used to analyze DNA ... ...
(Date:7/11/2017)...  The global market for liquid biopsy diagnostic and ... in 2016.  Although in early stages, the global market ... as a result of the gradual shift towards personalized ... of a significant number of new liquid biopsy tests ... biomarkers to guide treatment decisions. ...
(Date:7/11/2017)... 11, 2017  Dr. Echenberg, founder of Echenberg Institute, is announcing a ... who suffer from painful intercourse and other painful pelvic pain conditions such ... to menopause. ... LLC ... Sarasota, Florida -based start-up company, VuVatech LLC, fills a void ...
Breaking Medicine Technology: