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:3/28/2017)... ... 2017 , ... Award-winning medical group Allied Anesthesia today announced ... chair for Orange County health care system CalOptima Friday. CalOptima announced its election ... Mark Refowitz’s term, which runs through June 30 of this year, until another ...
(Date:3/28/2017)... ... March 28, 2017 , ... In its ... Success website has recently developed and published an informational resource that addresses frequently ... based on common inquiries the site’s team of third party administrator (TPA) contributors ...
(Date:3/28/2017)... CA (PRWEB) , ... March 28, 2017 , ... ... Carson Liu of SkyLex Advanced Surgical, Inc. is thrilled to offer the recently ... balloon procedure, and this procedure adds to SkyLex Advanced Surgical’s already comprehensive ...
(Date:3/28/2017)... ... , ... Oily skin is a common and unwelcomed occurrence in people of all ages, genders ... offer to the discussion of dealing with excess skin oil. “Oily skin is a challenge ... that can help remove the oily shine while keeping the skin fresh and clean,” says ...
(Date:3/27/2017)... ... 27, 2017 , ... New patients who have sleep apnea in ... or without a referral. Sleep apnea is often left untreated because patients are not ... and chronic snoring. , Dr. Braasch seeks to raise awareness of sleep apnea ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... , March 27, 2017  Sanderling Ventures, portfolio ... Ethicon, a division of Johnson & Johnson. Torax manufactures ... the treatment of gastro-esophageal reflux disease (GERD). The ... (MSA) technology and the procedure is currently available ... Torax Medical was founded by Sanderling Ventures, ...
(Date:3/27/2017)... FinancialBuzz.com News Commentary  ... According to a new report by Arcview Market Research, the ... 34 percent to $6.7 billion and can be expected to grow at ... five years, from $6.7 billion in 2016, to $22.6 billion in 2021. ... to purchase cannabis without a doctor,s recommendation. Voters in California ...
(Date:3/27/2017)... 2017 The staggering cost of cancer treatment ... access to the latest treatment options against cancer. Even ... patients have inadequate or no health insurance and are ... Access to modern cancer treatment is almost non-existent for ... The mission statements of pharmaceutical and biotech companies ...
Breaking Medicine Technology: