UPDATED 15.10.2013 14:16

Organised breast cancer screening programme in Finland in the invitation year 1997. Numbers and percentage distribution of screened women, referrals to further examinations and to surgery, and histologically confirmed diagnoses by age groups. Information registered from 399 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 83092 2790 3.36 2763 3.33 2213 2.66 835 1.00 492 0.59 183 0.22 287 0.35 22 0.03
55-592 48173 1137 2.36 1126 2.34 874 1.81 347 0.72 266 0.55 54 0.11 202 0.42 10 0.02
60-64 13169 336 2.55 332 2.52 230 1.75 79 0.60 74 0.56 13 0.10 56 0.43 5 0.04
65-69 7137 157 2.20 157 2.20 117 1.64 48 0.67 50 0.70 3 0.04 40 0.56 7 0.10
Total 151571 4420 2.92 4378 2.89 3434 2.27 1309 0.86 882 0.58 253 0.17 585 0.39 44 0.03

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).