Evidence map›Paper›PMID 3142562›Full record

Trial reportBMJ (Clinical research ed.)1988

Mammographic screening and mortality from breast cancer: the Malmö mammographic screening trial.

I Andersson, K Aspegren, L Janzon, T Landberg, K Lindholm, F Linell, O Ljungberg, J Ranstam, B Sigfússon

Registry-linked trialAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in BMJ (Clinical research ed.), 1988. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03279198 (Increasing Colorectal and Breast Cancer Screening in Women), which is not on this map. Cited by 172 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
172citing papers in PubMed, 11 pooled it
–field-weighted citation impact
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.

NCT03279198 nacompletednot on this mapstarted 2010, after this paper: background citation

Increasing Colorectal and Breast Cancer Screening in Women

TypeinterventionalSponsorIndiana UniversityRan2010 to 2017Enrolled1,196ConditionsBreast Cancer Female, Colorectal CancerArmsTIWeb, CSC, UC, TIWeb+CSC
3 · Its place in the literature

Who cites it

172 citing papers in PubMed, 11 syntheses or guidelines pooled it.

  1. Extending the Age Range in Mammography Screening: A Benefit-Risk Assessment from a Radiation Protection Perspective.RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin · 2026
    Pooled it
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  3. Recommendations on screening for breast cancer in women aged 40-74 years who are not at increased risk for breast cancer.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2018
    Guideline
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  8. Screening for breast cancer with mammography.The Cochrane database of systematic reviews · 2013
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  19. Effect of interventions on stage of mammography adoption.Journal of behavioral medicine · 1995
    Trial
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112 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

I AnderssonDepartment of Radiology, Malmö General Hospital, Sweden.
K Aspegren
L Janzon
T Landberg
K Lindholm
F Linell
O Ljungberg
J Ranstam
B Sigfússon

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectiveTo determine whether mortality from breast cancer could be reduced by repeated mammographic screening.

designBirth year cohorts of city population separately randomised into study and control groups.

settingScreening clinic outside main hospital. PATIENTS: Women aged over 45; 21,088 invited for screening and 21,195 in control group.

interventionsWomen in the study group were invited to attend for mammographic screening at intervals of 18-24 months. Five rounds of screening were completed. Breast cancer was treated according to stage at diagnosis. END POINT: Mortality from breast cancer. MEASUREMENTS AND MAIN

resultsAll women were followed up and classed at end point as alive without breast cancer, alive with breast cancer, dead from breast cancer, or dead from other causes. Cause of death was taken from national mortality registry and for patients with breast cancer was validated independently. Mean follow up was 8.8 years. Altogether 588 cases of breast cancer were diagnosed in the study group and 447 in the control group; 99 v 94 women died of all causes and 63 v 66 women died of breast cancer (no significant difference; relative risk 0.96 (95% confidence interval 0.68 to 1.35)). In the study group 29% more women aged less than 55 died of breast cancer (28 v 22; relative risk 1.29 (0.74 to 2.25)). More women in the study group died from breast cancer in the first seven years; after that the trend reversed, especially in women aged greater than or equal to 55 at entry. Overall, women in the study group aged greater than or equal to 55 had a 20% reduction in mortality from breast cancer (35 v 44; relative risk 0.79 (0.51 to 1.24)). OTHER

findingsIn the study group 100 (17%) cancers appeared in intervals between screenings and 107 (18%) in non-attenders; 51 of these women died from breast cancer. Cancers classed as stages II-IV comprised 33% (190/579) of cancers in the study group and 52% (231/443) in the control group.

conclusionsInvitation to mammographic screening may lead to reduced mortality from breast cancer, at least in women aged 55 or over.

Indexed as

Technology Assessment, BiomedicalAge FactorsBreast NeoplasmsCause of DeathCombined Modality TherapyFemaleHumansMammographyMass ScreeningMastectomyMiddle AgedRandom AllocationRiskSweden

Identifiers

PMID3142562
PMCPMC1834636

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Registered trials

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.