Since rates were first measured in 1987, more women got a mammogram each year than in the year before -- that is, until 2005. That year saw the first-ever drop in mammography rates. What caused the about-turn? Could a sudden drop in HT use at about that time have played a role? A widely publicized report that linked HT use with breast cancer led to a dramatic decline in the use of HT between 2000 and 2005.
Because current users of HT also tend to have higher mammography rates, Nancy Breen, PhD, of the National Cancer Institute in Rockville, Md, and her colleagues speculated that women who stopped taking HT might also have stopped getting mammograms. The reasoning was that if women typically need to see a doctor to renew their HT prescription and physicians typically take that opportunity to discuss and order mammograms, then stopping the HT prescription visits would result in a lost opportunity for doctors to remind women about mammograms.
To test their hypothesis, the researchers analyzed the leading national source of health data for the US population, the National Health Interview Survey, which is also the largest population-based national sample on mammography use. The study examined 7,125 women who were interviewed in 2000 and 7,387 women who were interviewed in 2005, all of whom were aged 50 years or older. The investigators found that the dramatic drop in use of HT helps explain the slight drop in mammography observed between 2000 and 2005 for women 50 to 64 years but not for women aged 65 years and older. Other factors that were associated with whether a woman got a mammogram included her education level, the type of health insurance coverage she had, and how recently she had last visited her doctor.
"Our research corroborates that a doctor's recommendation is an important step in getting a mammogram and it shows that when circumstances change -- such as evidence about HT -- it can upset the balance and lead to unanticipated and undesirable changes in mammography use," said Dr. Breen. "In short, we need to continue to ensure that women know about mammography and where they can get it. Mammography also needs to be affordable and convenient for women." Dr. Breen added that mammography is the best way to detect breast cancer early, when treatment is most effective.
Jennifer Beal | EurekAlert!
Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel
Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences