UPDATED 15.10.2013 14:19

Organised breast cancer screening programme in Finland in the invitation year 1998. Numbers and percentage distribution of screened women, referrals to further examinations and to surgery, and histologically confirmed diagnoses by age groups. Information registered from 410 municipalities (out of 452).

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 87053 2953 3.39 2912 3.35 2439 2.80 860 0.99 547 0.63 226 0.26 310 0.36 11 0.01
55-592 40685 950 2.34 939 2.31 740 1.82 245 0.60 212 0.52 51 0.13 155 0.38 6 0.01
60-64 16963 393 2.32 383 2.26 323 1.90 127 0.75 111 0.65 20 0.12 87 0.51 4 0.02
65-69 4409 89 2.02 88 2.00 67 1.52 24 0.54 25 0.57 5 0.11 19 0.43 1 0.02
Total 149110 4385 2.94 4322 2.90 3569 2.39 1256 0.84 895 0.60 302 0.20 571 0.38 22 0.01

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).