Factors of importance for the use of PAP-SMEAR in a Danish county without systematic screening.

Do various General Practice factors influence the participation rate (PR) in the cytological investigation for preventing cancer of the cervix uteri in counties without systematized screening? This was studied in the county of Aarhus, Denmark, where there are no systematic cytological examinations (CE). We studied a random sample of 2023 women aged 27.5 years to 47.5 years. Essential differences in PR depended on various practice characteristics. Practices with the highest average use of CE services, as counted by the Regional Health Authorities, also had the best PR. The relative chance of being sufficiently examined was almost twice as great among patients in active practices compared with other practices. Furthermore, practices with at least one female practitioner and practices that wanted the introduction of systematic screening had a significantly higher PR. There was a slightly higher PR for patients in large practices. Type of practice, i.e. whether single or partnership, and the individual practitioner's attitude to the efficiency of the present opportunistic screening were not related to the PR. Finally, a slightly lower PR was found among patients in the city of Aarhus, whereas the PR in the major cities of the county as a whole did not differ from the coverage rate in the county in general. It is concluded that the Health Authorities' average figure for CE-use/1000 women in the individual practice is the most significant factor that determines the CE rate for any given patient. Variation in the PR in different practices is unacceptably large if all the women are to receive a uniform CE screening offer.