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The fallacy of the screening interval for cervical smears
J G Boyce1, R G Fruchter, L Romanzi
1Department of Obstetrics and Gynecology, State University of New York-Health Science Center, Brooklyn.
Obstetrics and Gynecology
|October 1, 1990
Summary
Patient recall of cervical smear history is often inaccurate. Cancers can develop even after recent normal screening results, suggesting fixed screening intervals may not be reliable for early detection.
Area of Science:
- Gynecology
- Oncology
- Public Health
Background:
- Cervical cancer screening relies on regular Pap tests (cervical smears).
- Accurate patient recall of screening history is crucial for effective cancer prevention strategies.
- Discrepancies between self-reported and documented smear histories may impact risk assessment.
Purpose of the Study:
- To evaluate the accuracy of women's self-reported cervical smear histories.
- To examine the relationship between cervical smear history and patient/tumor characteristics in invasive cervical carcinoma.
- To assess the reliability of self-reported screening data for cervical cancer surveillance.
Main Methods:
- Interviewed 174 women diagnosed with invasive cervical carcinoma about their cervical smear history.
- Compared self-reported smear data with documented medical records.
- Analyzed correlations between smear history, patient demographics, and tumor stage.
Main Results:
- Patients significantly overreported smear frequency, recency, and normal results compared to medical records.
- Longer intervals between symptom onset and prior smear correlated with advanced cancer stage.
- Women with normal smears within 36 months had more advanced cancers than those with recent abnormal smears.
Conclusions:
- Patient self-reporting of cervical smear history is unreliable.
- Invasive cervical cancers can occur despite recent normal screening results.
- Fixed cervical cancer screening intervals should not be solely relied upon due to potential inaccuracies and false reassurance.