Transition from opportunistic cytological to organized screening program with DNA-HPV testing detected prevalent cervical cancers 10 years in advance

Sci Rep. 2024 Sep 5;14(1):20761. doi: 10.1038/s41598-024-71735-2.

Abstract

Cervical cancer screening in Brazil is opportunistic, based on cytology and offered for women aged 25-64 years, with low coverage (30%) and 70% of cancer diagnoses done in advanced stages, without impact on mortality. The current study reports 5-year first-round results of a population-based DNA-HPV testing screening program in a Brazilian city, which intended to be a model for transition to a more efficient program. Program flowchart is simple and current, indicating repetition of a negative test after five years. The first-round (October 2017-September 2022) screened 20,551 women by DNA-HPV testing with 58.7% coverage and 99.4% compliance with the program's targeted age range. Coverage increases to 77.8% when excluding the 'pandemic period'. The DNA-HPV testing was 87.2% negative with 6.2% colposcopy referrals and 84.8% colposcopies performed. A total of 258 high-grade precursor lesions and 29 cervical cancers (mean age = 41.4 years, 83% Stage I) were detected. As a reference, 41,387 cytology tests from the previous program (2012-2016) detected 36 cervical cancers (mean age = 52.0 years, p = 0.0005), with 67% in advanced stages (p < 0.0001). Organizing cervical cancer screening using DNA-HPV testing demonstrated good coverage, high age and colposcopy compliance, and detection of more precancerous lesions and cervical cancers 10 years in advance.

MeSH terms

  • Adult
  • Aged
  • Brazil / epidemiology
  • Colposcopy
  • DNA, Viral / genetics
  • Early Detection of Cancer* / methods
  • Female
  • Humans
  • Mass Screening / methods
  • Middle Aged
  • Papillomaviridae / genetics
  • Papillomaviridae / isolation & purification
  • Papillomavirus Infections* / diagnosis
  • Papillomavirus Infections* / virology
  • Prevalence
  • Uterine Cervical Neoplasms* / diagnosis
  • Uterine Cervical Neoplasms* / epidemiology
  • Uterine Cervical Neoplasms* / pathology
  • Uterine Cervical Neoplasms* / virology

Substances

  • DNA, Viral