Journal
BMJ-BRITISH MEDICAL JOURNAL
Volume 328, Issue 7445, Pages 921-924Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bmj.38044.666157.63
Keywords
-
Categories
Ask authors/readers for more resources
Objective To determine whether any increase in the incidence of breast cancer in women detected by mammography is compensated for by a drop in the incidence after age 69, years when women are no longer invited for screening. Design Population based cohort study of incidence of breast cancer during the introduction of nationwide screening programmes. Setting Norway and Sweden. Participants Ail women aged above 30 years (1.4 and 2.9 million, respectively, in 2000). Main outcome measures Changes in age specific incidence rates of invasive breast cancer associated with the introduction of the screening programmes. Results As a result of screening the recorded incidence of breast cancer in women aged 50-69 years increased by 54% in Norway and 45% in Sweden. There was no corresponding decline in incidence after the age of 69 years. Conclusions Without screening one third of all invasive breast cancers in the age group 50-69 years would not have been detected in the patients' lifetime. This level of overdiagnosis is larger than previously reported.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available