NEW YORK |
NEW YORK (Reuters Health) – Screening women over 65 any year for breast cancer doesn’t locate any some-more early tumors – though it does lead to some-more fake positives – than screening each other year, according to a new study.
The commentary are formed on some-more than 140,000 comparison women enclosed in 5 mammography registries opposite a United States.
“This investigate clearly tells us that screening each dual years might be some-more suitable than screening women each year,†pronounced Dr. Otis Brawley, arch medical officer of a American Cancer Society (ACS).
However, he noted, there are other studies that protest that anticipating and do advise annual mammograms are a approach to go, even among comparison women.
One in 8 U.S. women will be diagnosed with breast cancer during some indicate in her life.
Mammography discipline from a ACS call for women to be screened for breast cancer each year they are in good health, starting during age 40.
The U.S. Preventive Services Task Force, on a other hand, recommends biennial screening for women ages 50 to 74, observant there’s not adequate justification to suggest for or opposite mammograms for those aged 75 and older.
For a new study, Dejana Braithwaite from a University of California, San Francisco and her colleagues followed women ages 66 by 89 for 7 years. During that time, about 3,000 were diagnosed with breast cancer and 138,000 remained cancer-free.
Among women with breast cancer, a identical suit had invasive or modernized theatre tumors, regardless of either they had been screened each year or each other year heading adult to their diagnosis. About two-thirds of those women were screened annually.
However, between 47 and 50 percent of women who were screened annually had a fake certain mammogram during some indicate during a investigate period, compared to 26 to 30 percent of those screened biennially, according to a commentary published in a Journal of a National Cancer Institute.
“Just carrying a fake certain outcome means carrying a intensity stress and nuisance of carrying to bear additional procedures,†Braithwaite told Reuters Health.
In comparison women in particular, biopsies and other procedures might intensify underlying health conditions, she added.
According to Brawley, who wasn’t concerned in a new study, there are 3 forms of cancers.
“There are a cancers that grow so solemnly they would have never killed a patients, there are a cancers that grow delayed adequate that we can find them and save a patients’ lives and afterwards there are a cancers that grow so quick that no matter what screening we do, we’re never going to be means to save a patient’s life,†he told Reuters Health.
“This investigate says… screening each year is not going to find any some-more of these cancers that are flourishing delayed adequate to be detected, though quick adequate if they weren’t rescued they would kill.â€
Braithwaite’s organisation distributed that nationwide, screening comparison women annually rather than biennially would lead to roughly 4 million additional fake certain exams in that age group.
“Our investigate shows that it unequivocally does really small benefit, in fact there is no benefit, with annual mammograms and there’s this additional mistreat of carrying an increasing luck of a fake certain result,†Braithwaite said.
SOURCE: bit.ly/TPiVfY Journal of a National Cancer Institute, online Feb 5, 2013.
