UPDATED 15.10.2013 14:01

Organised breast cancer screening programme 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. Information registered from 278 municipalities (out of 461).

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 42895 1564 3.65 1559 3.63 1155 2.69 558 1.30 314 0.73 144 0.34 161 0.38 9 0.02
55-592 24199 495 2.05 493 2.04 356 1.47 153 0.63 123 0.51 34 0.14 85 0.35 4 0.02
60-64 28251 599 2.12 593 2.10 383 1.36 220 0.78 162 0.57 40 0.14 115 0.41 7 0.02
65-69 3759 85 2.26 84 2.23 50 1.33 18 0.48 22 0.59 - - 22 0.59 - -
Total 99104 2743 2.77 2729 2.75 1944 1.96 949 0.96 621 0.63 218 0.22 383 0.39 20 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).