Should unsatisfactory colposcopy necessitate treatment of cervical intraepithelial neoplasia 1?
OBJECTIVE: To evaluate the prevalence of cervical intraepithelial neoplasia (CIN) 2 or worse among women undergoing cone biopsy for CIN 1, stratified by colposcopic adequacy. MATERIALS AND METHODS: A cross-sectional cohort study was performed using a colposcopic database of 3,004 women seen between August 1999 and December 2005. Data collected included demographic information, indications for treatment, adequacy of colposcopic examination, and final cone pathology. A satisfactory colposcopy was defined as being able to define the entire squamocolumnar junction and visualize all lesions in their entirety. Descriptive statistics and crude and adjusted odds ratios with 95% confidence intervals were calculated. RESULTS: Of the 440 cone biopsies, 50 (11%) were done for CIN 1, of which 9 (18%) demonstrated CIN 2 or worse, and 23 (46%) were done in the setting of unsatisfactory colposcopy. Compared with women with satisfactory colposcopy, women with unsatisfactory colposcopy were more likely