UPDATED 20.02.2014 10:07

Organised cervical cancer screening programme in the Helsinki health care district in Finland in the invitation year 1993. Numbers and percentage distribution of primary screening test results, referrals for further examinations, and histological diagnosis of the cervix uteri.

Screening Screened Referral Histological diagnosis
test     Invasive
carcinoma
Microinvasive
carcinoma
Carcinoma
in situ
Dysplasia
gravis
Dysplasia
moderata
Dysplasia
levis
Other or
normal
  n n % n % n % n % n % n % n % n %
Pap test1 21473 262 1.22 3 0.01 - - 4 0.02 22 0.10 30 0.14 33 0.15 170 0.79
I 19927 - - - - - - - - - - - - - - - -
II 1431 148 0.69 1 - - - 1 - 7 0.03 4 0.02 13 0.06 122 0.57
III 103 102 0.48 2 0.01 - - 1 - 12 0.06 24 0.11 20 0.09 43 0.20
IV 12 12 0.06 - - - - 2 0.01 3 0.01 2 0.01 - - 5 0.02
V - - - - - - - - - - - - - - - - -
Inadequate - - - - - - - - - - - - - - - - -
Unknown - - - - - - - - - - - - - - - - -
HPV test - - - - - - - - - - - - - - - - -
Negative1 - - - - - - - - - - - - - - - - -
Positive2 - - - - - - - - - - - - - - - - -
Total 21473 262 1.22 3 0.01 - - 4 0.02 22 0.10 30 0.14 33 0.15 170 0.79

1 Women with Papanicolaou class I or II negative HPV test are not referred for further examinations unless repeated cytology or other results are suggestive of cancer.
2 Women whose HPV test is positive are referred for further examinations on the basis of cytology or a repeatedly positive result.