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Probability of early repeat Pap smear in an integrated cervical screening programme
A Rosso1, F Foglietta, C Naldoni
1Department of Prevention, Ravenna Health Care Administrations, Ravenna, Italy.
Summary
Women who self-refer for Pap smears are significantly more likely to have early repeat testing compared to those invited. This highlights differences in cervical cancer screening behavior and usage patterns.
Area of Science:
- Gynecology
- Public Health
- Oncology
Background:
- Cervical cancer screening guidelines recommend integrating self-referral Pap smears into organized, invitation-based programs.
- Understanding screening behavior is crucial for optimizing public health strategies.
Purpose of the Study:
- To compare the probability of early repeat Pap smears between women responding to invitations and self-referred women.
- To identify determinants influencing repeat Pap smear frequency in different screening populations.
Main Methods:
- Analysis of cytology archive data from an integrated cervical screening program (Faenza district, Italy, 1995-1998).
- Comparison of 2356 invited women with 2221 self-referred women (aged 25-64).
- Life table method for estimating early repeat Pap smear probability; Gehan test and Cox regression for statistical analysis.
Main Results:
- Self-referred women had a 44% cumulative probability of early repeat Pap smear versus 6% for invited women at 36 months (Hazard Ratio = 4.8).
- For self-referred women, early repeat Pap smear probability was associated with age (peak 35-44), prior history, and residence.
- Invited women showed only an inverse association with age.
Conclusions:
- Significant differences exist in Pap smear usage patterns between self-referred and invited populations.
- Findings provide insights into Pap smear utilization and inform strategies for comprehensive cervical cancer screening programs.