The incidence of fatal breast cancer measures the increased effectiveness of therapy in women participating in mammography screening.

摘要: Background Women and their health care providers need a reliable answer to this important question: If woman chooses participate in regular mammography screening, then how much will choice improve her chances of avoiding death from breast cancer compared with women who choose not participate? Methods To question, we used comprehensive registries for population, screening history, incidence, disease-specific data defined population Dalarna County, Sweden. The annual incidence was calculated along the cancers that were fatal within 10 11 20 years diagnosis among aged 40 69 either did or during 39-year period (1977-2015). For an additional comparison, corresponding are presented 19 prescreening (1958-1976). All patients received stage-specific therapy according latest national guidelines, irrespective mode detection. Results benefit chose organized program 60% lower risk dying after (relative risk, 0.40; 95% confidence interval, 0.34-0.48) 47% 0.53; 0.44-0.63) risks nonparticipants. Conclusions Although all stand advances therapy, current results demonstrate have participated obtain significantly greater available at time than do those participated.