UPDATED 15.10.2013 14:01


Organised breast cancer screening programme in the Oulu region in Finland in the invitation year 1991. Numbers and percentage distribution of screened women, referrals to further examinations and to surgery, and histologically confirmed diagnoses by age groups.

Age group1 Screened Referral Additional
mammogram
Ultra-
sonography
Fine-needle
biopsy
Surgery Histological diagnosis
      Benign      Malignant    Unknown
  n n % n % n % n % n % n % n % n %
50-542 1922 84 4.37 84 4.37 74 3.85 15 0.78 15 0.78 8 0.42 6 0.31 1 0.05
55-592 1168 21 1.80 20 1.71 17 1.46 2 0.17 3 0.26 2 0.17 1 0.09 - -
60-64 1647 28 1.70 28 1.70 25 1.52 2 0.12 6 0.36 2 0.12 4 0.24 - -
65-69 - - - - - - - - - - - - - - - - -
Total 4737 133 2.81 132 2.79 116 2.45 19 0.40 24 0.51 12 0.25 11 0.23 1 0.02

1 Age groups are defined on the basis of the invitation and the birth year.
2 Age groups targeted in the Decree of Public Health (1992).