Harms and benefits of mammographic screening for breast cancer in Brazil.

ABSTRACT:

Introduction

In the absence of evidence on the effect of mammographic screening on overall mortality, comparing the number of deaths avoided with the number of deaths caused by screening would be ideal, but the only existing models of this type adopt a very narrow definition of harms. The objective of the present study was to estimate the number of deaths prevented and induced by various mammography screening protocols in Brazil.

Methods

A simulation study of cohorts of Brazilian women screened, considering various age groups and screening interval protocols, was performed based on life tables. The number of deaths avoided and caused by screening was estimated, as was the absolute risk reduction, the number needed to invite for screening-NNS, the net benefit of screening, an

SUBMITTER: Migowski A 

PROVIDER: S-EPMC10810469 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature