Do you believe that all women should have yearly mammograms regardless of risk factors? What age should they start?
In the USA, physicians would like to see women under the age of about 40 years have a mammogram every 6 months. From the age of 45-65, physicians would like yearly mammograms. Above the age of 65, things seem to vary with the physician and the actual patient. Some physicians suggest a mammogram every 2-3 years until the age of the early 70s. Other physicians don't seem to have a cut off relative to age and allow elderly women ( age 80-90 ) to have mammograms every 1-3 years.
Who are the women at risk? First of all women who have a blood relative who's had breast cancer would be at risk. Women having genetic markers ( DNA scans ) which indicate a propensity for breast cancer. Women who have had any form of cancer, would also be at risk. Women younger than about 40 years appear to be at a greater risk than older women ( 60-85 ).
I personally question the use of mammograms in elderly women, unless these women do have a risk for breast cancer. However, if women have had yearly mammograms from age 40 to about 80 years, and all screenings have been normal, I personally would question continuing mammograms into the age range of 85-90+. I'd speculate that with age, there is an increased risk to the appearance of false positives on films taken, thus leading to needless additional tests and anxiety.
In Sweden, according to an article published in the New England Journal of Medicine early in 2013 or late 2012, it has been suggested that mammograms on Swedish women be stopped at age 69 ( studies based on statistics ).
There seems to be some variability in the age at which mammograms should be stopped. But, risk factors may be different for different women and each case has to be evaluated in it's own right.