OBJECTIVE:

To know the prevalence of high-grade intraepithelial lesions in women aged 15 to 25 years, with a cytology report of changes in the epithelium attributable to human papillomavirus infection.

MATERIALS AND METHODS:

Retrospective, tranversal and descriptive study performed at the Dysplasia Clinic of the Regional General Hospital 1 of Querétaro, Mexico, from January 2015 to December 2020. Inclusion criteria: files of women aged 15 to 25 years with report of changes in the epithelium attributable to HPV infection reported on cytology. Exclusion criteria: incomplete records. The statistical analysis plan included: averages, confidence intervals for averages, percentages, and confidence interval for percentages.

RESULTS:

We reviewed 823 files with cytology reports of epithelial changes attributable to HPV infection. The mean age of the women was 23.28 years (95%CI: 23.24-23.52), the mean age at sexual debut was 16.01 years (95%CI: 15.92-16.10). 7.0% (95%CI: 5.3-8.7) had high-grade intraepithelial lesions on cytology and colposcopy.

CONCLUSION:

The prevalence of high-grade intraepithelial lesions in women aged 15-25 years with reported epithelial changes attributable to HPV infection is 7.0% for cytology and for colposcopy.