Cervical intraepithelial neoplasia in patients with breast cancer: a cytological and colposcopic study
1993

Cervical Neoplasia in Breast Cancer Patients

Sample size: 26 publication Evidence: moderate

Author Information

Author(s): R.G. Hughes, M. Colquhoun, M. Alloubl, U. Chetty, G.E. Smart

Primary Institution: Lothian Area Colposcopy Clinic, Elsie Inglis Maternity Hospital

Hypothesis

Are breast cancer patients receiving chemotherapy at increased risk of cervical intraepithelial neoplasia (CIN)?

Conclusion

Breast cancer patients receiving combination chemotherapy are at increased risk of CIN compared to controls.

Supporting Evidence

  • 43% of breast cancer patients receiving chemotherapy had CIN compared to 10% of controls.
  • 14% of chemotherapy patients had CIN 2 or 3 compared to 3% of controls.
  • No cases of CIN were detected by cervical cytology in breast cancer patients.

Takeaway

This study found that women with breast cancer who had chemotherapy are more likely to have a condition called CIN, which can lead to cervical cancer.

Methodology

Patients with treated breast cancer underwent cytological and colposcopic screening, and results were compared with normal controls.

Potential Biases

Potential selection bias due to the small number of participants and controls.

Limitations

The study had a small sample size and did not include a larger control group.

Participant Demographics

Patients were aged between 40 and 61, with a history of treated breast cancer.

Statistical Information

P-Value

p<0.01 for CIN prevalence in chemotherapy patients vs controls

Statistical Significance

p<0.01

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