Benefits, harms and cost-effectiveness of cervical screening, triage and treatment strategies for women in the general population

Nat Med. 2023 Dec;29(12):3050-3058. doi: 10.1038/s41591-023-02600-4. Epub 2023 Dec 12.

Abstract

In 2020, the World Health Organization (WHO) launched a strategy to eliminate cervical cancer as a public health problem. To support the strategy, the WHO published updated cervical screening guidelines in 2021. To inform this update, we used an established modeling platform, Policy1-Cervix, to evaluate the impact of seven primary screening scenarios across 78 low- and lower-middle-income countries (LMICs) for the general population of women. Assuming 70% coverage, we found that primary human papillomavirus (HPV) screening approaches were the most effective and cost-effective, reducing cervical cancer age-standardized mortality rates by 63-67% when offered every 5 years. Strategies involving triaging women before treatment (with 16/18 genotyping, cytology, visual inspection with acetic acid (VIA) or colposcopy) had close-to-similar effectiveness to HPV screening without triage and fewer pre-cancer treatments. Screening with VIA or cytology every 3 years was less effective and less cost-effective than HPV screening every 5 years. Furthermore, VIA generated more than double the number of pre-cancer treatments compared to HPV. In conclusion, primary HPV screening is the most effective, cost-effective and efficient cervical screening option in LMICs. These findings have directly informed WHO's updated cervical screening guidelines for the general population of women, which recommend primary HPV screening in a screen-and-treat or screen-triage-and-treat approach, starting from age 30 years with screening every 5 years or 10 years.

MeSH terms

  • Adult
  • Cervix Uteri
  • Child, Preschool
  • Cost-Benefit Analysis
  • Early Detection of Cancer
  • Female
  • Humans
  • Papillomavirus Infections* / diagnosis
  • Triage
  • Uterine Cervical Neoplasms* / prevention & control
  • Uterine Cervical Neoplasms* / therapy