Use of pap-smears in a population without a mass screening program

Area of Science:

• Gynecologic Oncology
• Public Health
• Epidemiology

Background:

• Opportunistic Pap-smear screening was analyzed in a Norwegian population without a formal screening program.
• Previous studies highlight the importance of organized screening for cervical cancer prevention.

Purpose of the Study:

• To analyze the utilization patterns of Pap-smears in a population lacking a structured screening program.
• To evaluate opportunistic screening effectiveness by age and birth year.

Main Methods:

• Retrospective analysis of pathology registry data from two Norwegian counties.
• Inclusion of 353,665 Pap-smears from 88,048 women, focusing on 257,951 smears from 77,431 women between 1981-1990.
• Evaluation of screening proportions across 3-year periods and age demographics.

Main Results:

• Women aged 20-39 constituted 62-67% of those screened; 14-16% were 50-69 years old.
• Pap-smear frequency increased slightly for women over 60 and under 20, but decreased for the 20-39 age group.
• Follow-up of abnormal smears occurred in approximately 25% of cases, with the highest proportion in women aged 30-49.

Conclusions:

• Over half of women aged 50 and above received inadequate Pap-smear screening (less than one every three years), with rates worsening with age.
• Opportunistic screening patterns fell short of expectations for an organized screening program, despite minor improvements observed.
• The study underscores the need for structured cervical cancer screening programs to ensure adequate coverage across all age groups.