We thank J.M. Broeders and S. Moss for their interest in our article (Autier and Boniol, 2012). J.M. Broeders and S. Moss have rightly understood the problem we raised that when breast cancer mortality decreases for reasons unrelated to screening, data used for computing are biased and systematically lead to overestimation of the screening ability to decrease the risk of breast cancer death in general populations (effectiveness).
- breast neoplasms
- epidemiologic research design
- mass screening
- program evaluation