UPDATED 15.10.2013 14:14


Organised breast cancer screening programme in the Pohjois-Pohjanmaa health care district in Finland in the invitation year 1996. 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 %
50-542 406 15 3.69 14 3.45 7 1.72 2 0.49 5 1.23 3 0.74 2 0.49 - -
55-592 294 10 3.40 9 3.06 4 1.36 3 1.02 4 1.36 - - 1 0.34 3 1.02
60-64 26 - - - - - - - - - - - - - - - -
65-69 - - - - - - - - - - - - - - - - -
Total 726 25 3.44 23 3.17 11 1.52 5 0.69 9 1.24 3 0.41 3 0.41 3 0.41

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).