Objective:

To review the evidence on impact of screening on breast cancer mortality among women aged 40 to 49 years and to review the methodological issues likely to impact the analysis of effect; to assess the incremental benefit of commencing screening at 40 years rather than at 50 years; and to estimate the likely relative risk reduction, absolute risk reduction and number needed to screen if screening commences at age 40 rather than at age 50.

Search Date:

Prior to 1997