Breast cancer mortality in organised mammography screening in Denmark: comparative study.

ABSTRACT:

Objective

To determine whether the previously observed 25% reduction in breast cancer mortality in Copenhagen following the introduction of mammography screening was indeed due to screening, by using an additional screening region and five years additional follow-up.

Design

We used Poisson regression analyses adjusted for changes in age distribution to compare the annual percentage change in breast cancer mortality in areas where screening was used with the change in areas where it was not used during 10 years before screening was introduced and for 10 years after screening was in practice (starting five years after introduction of screening).

Setting

Copenhagen, where mammography screening started in 1991, and Funen county, where screening was introduced in 1993. The

SUBMITTER: Jorgensen KJ 

PROVIDER: S-EPMC2844939 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature