Expression of concern - Effect of Brazil's national human papillomavirus vaccination programme on the incidence of cervical cancer and cervical intraepithelial neoplasia grade 3 in women aged 20-24 years: a population-based study
Menée à partir de données brésiliennes 2019-2023 relatives aux diagnostics, aux traitements et aux hospitalisations, cette étude analyse l'effet, sur l'incidence du cancer du col de l'utérus (1 318 cas) et des lésions intraépithéliales de grade 3 (2 132 cas), du programme de vaccination contre le papillomavirus humain chez les femmes âgées de 20 à 24 ans
In October 2025, The Lancet Global Health published a population-based study to estimate the effect of Brazil’s national human papillomavirus vaccination programme on the incidence of cervical cancer,1 by Thiago Cerqueira-Silva and colleagues. On July 15, 2026, the corresponding author alerted us to some coding errors that affected several numerical values in the findings—some substantially. In view of the extent of these errors, we now issue an Expression of Concern while working with the authors to correct the record, including further review of the revised paper.
The Lancet Global Health , commentaire, 2026