Table 1

Study cases

Case
n (%)

Random sample of cases from the 1996 screening round with full screening history available
10,096
Cancer cases
315
Detection status

     Detected at original 1996 screen
85 (27)
     Detected as interval cancer (within 1 year)
7 (2)
     Detected as interval cancer (2 to 3 years later)
42 (13)
     Screen detected at next screen in 1999
96 (31)
     Cancer thereafter
85 (27)

Gilbert et al. Breast Cancer Research 2008 10:R72   doi:10.1186/bcr2137