Rates of regression of cervical dysplasia between initial biopsy and excisional procedure in routine clinical practice.

Purpose: To determine rates and factors associated with regression of cervical intraepithelial neoplasia (CIN) 2 + between colposcopic biopsy and therapeutic excisional procedure in standard practice.

Methods: A retrospective chart review was performed for women undergoing a cervical excisional procedure for CIN 2 + at clinics at three academic institutions over a 3-year period. Cytology, histology, patient age and time-to-excision were analyzed to determine factors influencing rates of regression.