Background Although breast cancer screening reduces breast cancer mortality at the
population level, subgroups of women may benefit differently. We investigated the impact of …

Purpose Randomized, controlled trials showed that screening reduces breast cancer
mortality rates, but some recent observational studies have concluded that programmatic …

Background: Ongoing breast cancer screening programs can only be evaluated using
observational study designs. Most studies have observed a reduction in breast cancer …

Background Breast cancer screening programs were introduced in many countries
worldwide following randomized controlled trials in the 1980s showing a reduction in breast …

Background: With changes in diagnosis, treatment, and management of breast cancer since
the mammography screening trials, there is a need to evaluate contemporary breast …

Objectives When estimating the decline in breast cancer mortality attributable to screening,
the challenge is to provide valid comparison groups and to distinguish the screening effect …

Large-scale epidemiologic studies have consistently demonstrated the effectiveness of
mammographic screening programs, however the benefits are still subject to debate. We …

Introduction Service breast cancer screening is difficult to evaluate because there is no
unscreened control group. Due to a natural experiment, where 20% of women were offered …

Objectives The benefit of mammography screening in reducing population mortality from
breast cancer is well established. In this paper, we estimate the effect of repeated …

While reductions in breast cancer mortality have been evident since the introduction of
population‐based breast screening in women aged 50–74 years, participation in cancer …