Fig. 1

Flow chart of the patient’s selection: using the pathology data of all the patients diagnosed, with CIN 2 or CIN 3 (CIN2  + /high grade squamous intraepithelial lesion), between January 2003 and December 2017 (n  =  2669), we included finally 146 HIV  +  women. We matched (matching criteria: CIN2  + , age, and year of diagnosis) 146 HIV-women from the pathology databank. All the women needed to have at least one follow-up cervical smear after management