Women Previously Diagnosed with Cervical Intraepithelial Neoplasia at Higher Risk for Recurrence and Invasive Cancer

Extract

Long-term risks of invasive cancer and recurrence of severe cervical intraepithelial neoplasia (CIN) are higher among women previously treated for CIN, compared with those with no CIN diagnosis, according to data from a large, retrospective cohort study published in the May 12 online issue of the Journal of the National Cancer Institute .

The study was undertaken because information on the long-term risks of subsequent CIN or invasive cancer among women previously treated for the disease is limited. More information on long-term risks is needed to help guide long-term follow-up of these patients.

To determine such risks, Joy Melnikow, M.D., of the Center for Healthcare Policy and Research at the University of California, Davis, and colleagues retrospectively identified a CIN cohort of 37,142 women who were treated for CIN 1, 2, or 3 from January 1, 1986, through December 31, 2000, and compared them with a cohort of 71,213 women with no previous CIN diagnosis. Both groups were under active surveillance through 2004.