TY - JOUR
T1 - Breast cancer mortality in Copenhagen after introduction of mammography screening
T2 - Cohort study
AU - Olsen, Anne Helene
AU - Njor, Sisse H.
AU - Vejborg, Ilse
AU - Schwartz, Walter
AU - Dalgaard, Peter
AU - Jensen, Maj Britt
AU - Tange, Ulla Brix
AU - Blichert-Toft, Mogens
AU - Rank, Fritz
AU - Mouridsen, Henning
AU - Lynge, Elsebeth
PY - 2005/1/29
Y1 - 2005/1/29
N2 - Objectives: To evaluate the effect on breast cancer mortality during the first 10 years of the mammography service screening programme that was introduced in Copenhagen in 1991. Design: Cohort study. Setting: The mammography service screening programme in Copenhagen, Denmark. Participants: All women ever invited to mammography screening in the first 10 years of the programme. Historical, national, and historical national control groups were used. Main outcome measures: The main outcome measure was breast cancer mortality. We compared breast cancer mortality in the study group with rates in the control groups, adjusting for age, time period, and region. Results: Breast cancer mortality in the screening period was reduced by 25% (relative risk 0.75, 95% confidence interval 0.63 to 0.89) compared with what we would expect in the absence of screening. For women actually participating in screening, breast cancer mortality was reduced by 37%. Conclusions: In the Copenhagen programme, breast cancer mortality was reduced without severe negative side effects for the participants.
AB - Objectives: To evaluate the effect on breast cancer mortality during the first 10 years of the mammography service screening programme that was introduced in Copenhagen in 1991. Design: Cohort study. Setting: The mammography service screening programme in Copenhagen, Denmark. Participants: All women ever invited to mammography screening in the first 10 years of the programme. Historical, national, and historical national control groups were used. Main outcome measures: The main outcome measure was breast cancer mortality. We compared breast cancer mortality in the study group with rates in the control groups, adjusting for age, time period, and region. Results: Breast cancer mortality in the screening period was reduced by 25% (relative risk 0.75, 95% confidence interval 0.63 to 0.89) compared with what we would expect in the absence of screening. For women actually participating in screening, breast cancer mortality was reduced by 37%. Conclusions: In the Copenhagen programme, breast cancer mortality was reduced without severe negative side effects for the participants.
UR - http://www.scopus.com/inward/record.url?scp=19944433300&partnerID=8YFLogxK
U2 - 10.1136/bmj.38313.639236.82
DO - 10.1136/bmj.38313.639236.82
M3 - Article
C2 - 15649904
AN - SCOPUS:19944433300
VL - 330
SP - 220
EP - 222
JO - British Medical Journal
JF - British Medical Journal
SN - 0959-8146
IS - 7485
ER -