Evidence map›Paper›PMID 25928287›Full record

ReviewBreast cancer research : BCR2015

Benefits and harms of mammography screening.

Magnus Løberg, Mette Lise Lousdal, Michael Bretthauer, Mette Kalager

Open access · goldAbstract readReview
In one paragraph

Review in Breast cancer research : BCR, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 138 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed, 2 pooled it
9.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

138 citing papers in PubMed, 2 syntheses or guidelines pooled it, 366 citations in OpenAlex.

  1. Breast Cancer Care Quality Indicators in Spain: A Systematic Review.International journal of environmental research and public health · 2021
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78 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Magnus LøbergInstitute of Health and Society, University of Oslo, N-0317, Oslo, Norway. magnus.loberg@medisin.uio.no.
Mette Lise LousdalDepartment of Public Health, Aarhus University, 8000, Aarhus C, Denmark. mette.lise.lousdal@publ.au.dk.
Michael BretthauerInstitute of Health and Society, University of Oslo, N-0317, Oslo, Norway. micahel.bretthauer@medisin.uio.no.
Mette KalagerInstitute of Health and Society, University of Oslo, N-0317, Oslo, Norway. mkalager@hsph.harvard.edu.
University of Oslo · NOAarhus University · DKOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mammography screening for breast cancer is widely available in many countries. Initially praised as a universal achievement to improve women's health and to reduce the burden of breast cancer, the benefits and harms of mammography screening have been debated heatedly in the past years. This review discusses the benefits and harms of mammography screening in light of findings from randomized trials and from more recent observational studies performed in the era of modern diagnostics and treatment. The main benefit of mammography screening is reduction of breast-cancer related death. Relative reductions vary from about 15 to 25% in randomized trials to more recent estimates of 13 to 17% in meta-analyses of observational studies. Using UK population data of 2007, for 1,000 women invited to biennial mammography screening for 20 years from age 50, 2 to 3 women are prevented from dying of breast cancer. All-cause mortality is unchanged. Overdiagnosis of breast cancer is the main harm of mammography screening. Based on recent estimates from the United States, the relative amount of overdiagnosis (including ductal carcinoma in situ and invasive cancer) is 31%. This results in 15 women overdiagnosed for every 1,000 women invited to biennial mammography screening for 20 years from age 50. Women should be unpassionately informed about the benefits and harms of mammography screening using absolute effect sizes in a comprehensible fashion. In an era of limited health care resources, screening services need to be scrutinized and compared with each other with regard to effectiveness, cost-effectiveness and harms.

Indexed as

Early Detection of CancerMammographyBreast NeoplasmsFemaleHumansMass ScreeningMortalitySensitivity and Specificity

Identifiers

PMID25928287
PMCPMC4415291
OpenAlexW2171179006

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.