Evidence map›Paper›PMID 26882064›Full record

ArticleBritish journal of cancer2016

Relationship between paediatric CT scans and subsequent risk of leukaemia and brain tumours: assessment of the impact of underlying conditions.

Amy Berrington de Gonzalez, Jane A Salotti, Kieran McHugh, Mark P Little, Richard W Harbron, Choonsik Lee, Estelle Ntowe, Melissa Z Braganza, Louise Parker, Preetha Rajaraman and 4 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 7 pooled it
22.5field-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

96 citing papers in PubMed, 7 syntheses or guidelines pooled it, 232 citations in OpenAlex.

  1. Cancer Effects of Low to Moderate Doses of Ionizing Radiation in Young People with Cancer-Predisposing Conditions: A Systematic Review.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2022
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  10. Biological effects ofEuropean radiology · 2026
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36 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

14 authors at 7 institutions in 3 countries.

Amy Berrington de GonzalezRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Jane A SalottiInstitute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK.
Kieran McHughGreat Ormond Street Hospital for Children NHS Trust, London WC1N 3JH, UK.
Mark P LittleRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Richard W HarbronInstitute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK.
Choonsik LeeRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Estelle NtoweRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Melissa Z BraganzaRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Louise ParkerDepartments of Medicine and Paediatrics, Population Cancer Research Program, Dalhousie University, Halifax, Nova Scotia, Canada.
Preetha RajaramanRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Charles StillerNew College, University of Oxford, Oxford, UK.
Douglas R StewartRadiation Epidemiology Unit, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD, USA.
Alan W CraftInstitute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK.
Mark S PearceInstitute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK.
Division of Cancer Epidemiology and GeneticsRoyal Victoria Infirmary · GBCancer Genetics (United States) · USDalhousie University · CAGreat Ormond Street Hospital · GBNewcastle University · GBNew College · GB

Funding

Studies of Populations Exposed to Diagnostic Medical RadiationZIACP010222 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI KITAHARA, CARI · 2011 to 2025
$13.1M
Cancer Research UK 16015Department of HealthIntramural NIH HHS
6 · The paper itself

Abstract

backgroundWe previously reported evidence of a dose-response relationship between ionising-radiation exposure from paediatric computed tomography (CT) scans and the risk of leukaemia and brain tumours in a large UK cohort. Underlying unreported conditions could have introduced bias into these findings.

methodsWe collected and reviewed additional clinical information from radiology information systems (RIS) databases, underlying cause of death and pathology reports. We conducted sensitivity analyses excluding participants with cancer-predisposing conditions or previous unreported cancers and compared the dose-response analyses with our original results.

resultsWe obtained information from the RIS and death certificates for about 40% of the cohort (n∼180 000) and found cancer-predisposing conditions in 4 out of 74 leukaemia/myelodysplastic syndrome (MDS) cases and 13 out of 135 brain tumour cases. As these conditions were unrelated to CT exposure, exclusion of these participants did not alter the dose-response relationships. We found evidence of previous unreported cancers in 2 leukaemia/MDS cases, 7 brain tumour cases and 232 in non-cases. These previous cancers were related to increased number of CTs. Exclusion of these cancers reduced the excess relative risk per mGy by 15% from 0.036 to 0.033 for leukaemia/MDS (P-trend=0.02) and by 30% from 0.023 to 0.016 (P-trend<0.0001) for brain tumours. When we included pathology reports we had additional clinical information for 90% of the cases. Additional exclusions from these reports further reduced the risk estimates, but this sensitivity analysis may have underestimated risks as reports were only available for cases.

conclusionsAlthough there was evidence of some bias in our original risk estimates, re-analysis of the cohort with additional clinical data still showed an increased cancer risk after low-dose radiation exposure from CT scans in young patients.

Indexed as

AdolescentAdultBrain NeoplasmsChildCohort StudiesFemaleHumansLeukemiaMaleNeoplasms, Radiation-InducedRetrospective StudiesTomography, X-Ray ComputedYoung Adult

Identifiers

PMID26882064
PMCPMC4815765
OpenAlexW2344227124

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.