From: Improved breast cancer survival following introduction of an organized mammography screening program among both screened and unscreened women: a population-based cohort study
5-year
9-year
Group
Survival
95% CI
Pre-program group
0.76
0.75 to 0.77
0.66
0.65 to 0.67
Post-program group
0.80
0.79 to 0.81
0.72
0.70 to 0.74
Screening group
0.91
0.90 to 0.92
0.84
0.80 to 0.88