News / Health

Study Supports Breast Cancer Screening Every Two Years

More false positives with annual mammograms

According to a study of 170,000 women who had mammograms, a majority of women who get annual screenings have false-positive results.
According to a study of 170,000 women who had mammograms, a majority of women who get annual screenings have false-positive results.

Multimedia

Audio
Art Chimes

A new study finds that women who have a mammogram every other year are less likely to get a suspicious result requiring additional testing as compared to women who have the breast cancer screening test every year.

The researchers found little risk in going two years between mammograms.

In 2009, a U.S. government expert committee, the U.S. Preventive Services Task Force, recommended breast cancer mammography every two years, starting at age 50. The previous standard was annual screening starting at age 40.

The change was controversial; many women and their doctors still follow the old recommendation.

This latest study examined the records of about 170,000 women who had mammograms. They found that a majority of women getting annual screenings had false-positive results.

"We found that more than half the women, after 10 years of annual screening, will be recalled for additional imaging," says Diana Miglioretti of the Group Health Research Institute in Seattle. "And it turns out they do not have cancer. And that seven percent of women will be recommended to have a biopsy that turns out not to show cancer."

Another finding in the study was that women who had mammograms every other year were slightly more likely to have a finding of cancer.

"We found a very small increase in the probability of having a late-stage breast cancer for women screened every two years, but this was not statistically significant," she says, meaning it may have been due to chance alone.

A suspicious mammogram which prompts further testing may be scary, but Miglioretti stresses that the vast majority of women who are called back for more imaging or even a biopsy do not have breast cancer.

She adds that one way to reduce the chance of a false-positive result is to have a baseline mammogram so the doctor can see any changes.

"One thing that we found that's important for women to know is that having comparison films available when the radiologist interprets your mammogram greatly reduced the probability of having a false-positive result."

Diana Miglioretti and her colleagues published their study in the Annals of Internal Medicine.

In a separate study in the same issue of that journal, researchers compared digital mammography with traditional film. Overall, the two produced comparable results, but for women in their 40s, digital screening may give better results.

However, the digital scans also produce more false positives, and an editorial in the journal by Philippe Autier, MD, of the International Prevention Research Institute in France suggests that widespread adoption of digital mammograms may reduce the efficiency of breast cancer screening.    

You May Like

Tired of Waiting, South Africans Demand Change ‘Now’

With chronic poverty and lack of basic services largely fueling recent xenophobic attacks, many in Rainbow Nation say it’s time for government to act More

Challenges Ahead for China's Development Plans in Pakistan

Planned $46 billion in energy and infrastructure investments in Pakistan are aimed at transforming the country into a regional hub for trade and investment More

Audio 'Forbidden City' Revisits Little Known Era of Asian-American Entertainment

Little-known chapter of entertainment history captured in 80s documentary is revisited in new digitally remastered format and book More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Study: Insecticide Damaging Wild Bee Populationsi
X
April 24, 2015 10:13 PM
A popular but controversial type of insecticide is damaging important wild bee populations, according to a new study. VOA’s Steve Baragona has more.
Video

Video Study: Insecticide Damaging Wild Bee Populations

A popular but controversial type of insecticide is damaging important wild bee populations, according to a new study. VOA’s Steve Baragona has more.
Video

Video Data Servers Could Heat Private Homes

As every computer owner knows, when their machines run a complex program they get pretty hot. In fact, cooling the processors can be expensive, especially when you're dealing with huge banks of computer servers. But what if that energy could heat private homes? VOA’s George Putic reports that a Dutch energy firm aims to do just that.
Video

Video Cinema That Crosses Borders Showcased at Tribeca Film Festival

Among the nearly 100 feature length films being shown at this year’s Tribeca Film Festival in New York City are more than 20 documentaries and features with international appeal, from a film about a Congolese businessman in China, to documentaries shot in Pakistan and diaspora communities in the U.S., to a poetic look at disaffected South African youth. VOA’s Carolyn Weaver has more.
Video

Video UN Confronts Threat of Young Radicals

The radicalization and recruitment of young people into Islamist extremist groups has become a growing challenge for governments worldwide. On Thursday, the U.N. Security Council heard from experts on the issue, which has become a potent threat to international peace and security. VOA’s Margaret Besheer reports.
Video

Video Growing Numbers of Turks Discover Armenian Ancestry

In a climate of improved tolerance, growing numbers of people in Turkey are discovering their grandmothers were Armenian. Hundreds of thousands of Armenians escaped the mass deportations and slaughter of the early 1900's by forced conversion to Islam. Or, Armenian children were taken in by Turkish families and assimilated. Now their stories are increasingly being heard. Dorian Jones reports from Istanbul that the revelations are viewed as an important step.
Video

Video Migrants Trek Through Western Balkans to Reach EU

Migrants from Africa and other places are finding different routes into the European Union in search of a better life. The Associated Press followed one clandestine group to document their trek through the western Balkans to Hungary. Zlatica Hoke reports that the migrants started using that route about four years ago. Since then, it has become the second-most popular path into Western Europe, after the option of sailing from North Africa to Italy.
Video

Video TIME Magazine Honors Activists, Pioneers Seen as Influential

TIME Magazine has released its list of celebrities, leaders and activists, whom it deems the world’s “most influential” in 2015. VOA's Ramon Taylor reports from New York.
Video

Video US Businesses See Cuba as New Frontier

The Obama administration's opening toward Cuba is giving U.S. companies hope they'll be able to do business in Cuba despite the continuation of the U.S. economic embargo against the communist nation. Some American companies have been able to export some products to Cuba, but the recent lifting of Cuba's terrorism designation could relax other restrictions. As VOA's Daniela Schrier reports, corporate heavy hitters are lining up to head across the Florida Straits - though experts urge caution.
Video

Video Kenya Launches Police Recruitment Drive After Terror Attacks

Kenya launched a major police recruitment drive this week as part of a large-scale effort to boost security following a recent spate of terror attacks. VOA’s Gabe Joselow reports that allegations of corruption in the process are raising old concerns about the integrity of Kenya’s security forces.
Video

Video Japan, China in Race for Asia High-Speed Rail Projects

A lucrative competition is underway in Asia for billions of dollars in high-speed rail projects. Cambodia, India, Indonesia, Malaysia Thailand and Vietnam are among the countries planning to move onto the fast track. They are negotiating with Japan and the upstart Chinese who are locked in a duel to revolutionize transportation across Asia. VOA Correspondent Steve Herman in Bangkok has details.
Video

Video Scientists: Mosquitoes Attracted By Our Genes

Some people always seem to get bitten by mosquitoes more than others. Now, scientists have proved that is really the case - and they say it’s all because of genes. It’s hoped the research might lead to new preventative treatments for diseases like malaria, as Henry Ridgwell reports from London.
Video

Video Bible Museum Coming to Washington DC

Washington is the center of American political power and also home to some of the nation’s most visited museums. A new one that will showcase the Bible has skeptics questioning the motives of its conservative Christian funders. VOA religion correspondent Jerome Socolovsky reports.
Video

Video Armenia and Politics of Word 'Genocide'

A century ago this April, hundreds of thousands of Armenians of the Turkish Ottoman empire were deported and massacred, and their culture erased from their traditional lands. While broadly accepted by the U.N. and at least 20 countries as “genocide”, the United States and Turkey have resisted using that word to describe the atrocities that stretched from 1915 to 1923. But Armenians have never forgotten.
Video

Video Afghan First Lady Pledges No Roll Back on Women's Rights

Afghan First Lady Rula Ghani, named one of Time's 100 Most Influential, says women should take part in talks with Taliban. VOA's Rokhsar Azamee has more from Kabul.
Video

Video New Brain Mapping Techniques Could Ease Chronic Pain

From Boulder, Colorado, Shelley Schlender reports that new methods for mapping pain in the brain are providing validation for chronic pain and might someday guide better treatment.

VOA Blogs