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:12/2/2016)... ... December 02, 2016 , ... More than ... Alabama are expected to attend the UNCF Dothan-Wiregrass Mayor’s Luncheon Dec. 9, 2016. ... for area students and operating support to UNCF-member institutions, including Miles College, Oakwood ...
(Date:12/2/2016)... ... , ... Center for Autism and Related Disorders (CARD) Portland today announced plans ... (ASD) and other developmental disabilities. The group, which is being launched with the help ... opportunity to share stories and advice, seek help, and continue their education on how ...
(Date:12/2/2016)... , ... December 02, 2016 , ... With the number ... rehabilitation of an injury, patients must find the one that works for them. When ... he created a machine that worked and decided to share it with others. , ...
(Date:12/2/2016)... ... December 02, 2016 , ... More than half of ... 84 percent of parents report speaking with their child about sex related topics, less ... diseases. , Mediaplanet is proud to announce the launch of its second edition of ...
(Date:12/2/2016)... ... 2016 , ... The PAINWeekEnd Regional Conference will be hosted ... Honolulu, offering local frontline clinicians the opportunity to extend their certified continuing medical ... supplemental training related to pain management has surged dramatically in recent years, with ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... On Thursday, the NASDAQ Composite ended the trading ... edged 0.36% higher, to finish at 19,191.93; and the S&P ... as six out of nine sectors ended the day in ... Services equities: Myriad Genetics Inc. (NASDAQ: MYGN ), ... Inc. (NASDAQ: INCR ), and La Quinta Holdings ...
(Date:12/2/2016)... to announce that 12 scientific abstracts have been accepted for ... Society (AES) Annual Meeting, which takes place from 2-6 December ... Data being presented include posters further describing ... CV and BRIVIACT ® (brivaracetam) CV. 2,3,4,6,8 Presentations ... union of epilepsy care and antiepileptic drugs in the U.S. ...
(Date:11/30/2016)... DUBLIN , Nov 30, 2016 ... "US Market Overview for Neuromodulation, Neurovascular, Neurosurgical and Monitoring ... ... The full report suite on ... cerebrospinal fluid external drainage systems, intracranial pressure monitoring devices, detachable ...
Breaking Medicine Technology: