Evidence map›Paper›PMID 27388603›Full record

ArticleBMC cancer2016

Increasing incidence of thyroid cancer in the Nordic countries with main focus on Swedish data.

Michael Carlberg, Lena Hedendahl, Mikko Ahonen, Tarmo Koppel, Lennart Hardell

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
10.6field-weighted citation impact, top 2% 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

28 citing papers in PubMed, 63 citations in OpenAlex.

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  6. Cell Phone Radiation Exposure Limits and Engineering Solutions.International journal of environmental research and public health · 2023
    Review
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  13. Is the Increasing Incidence of Thyroid Cancer in the Nordic Countries Caused by Use of Mobile Phones?International journal of environmental research and public health · 2020
    Article
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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

5 authors at 3 institutions in 2 countries.

Michael CarlbergDepartment of Oncology, Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden. michael.carlberg@regionorebrolan.se.
Lena HedendahlIndependent Environment and Health Research Luleå, Östra Skolgatan 12, SE-972 53, Luleå, Sweden.
Mikko AhonenInstitute of Environmental Health and Safety, Jaama 14-3, 11615, Tallinn, Estonia.
Tarmo KoppelDepartment of Labour Environment and Safety, Tallinn University of Technology, SCO351 Ehitajate tee 5, 19086, Tallinn, Estonia.
Lennart HardellDepartment of Oncology, Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden.
Örebro University · SELuleå University of Technology · SETallinn University of Technology · EE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRadiofrequency radiation in the frequency range 30 kHz-300 GHz was evaluated to be Group 2B, i.e. 'possibly' carcinogenic to humans, by the International Agency for Research on Cancer (IARC) at WHO in May 2011. Among the evaluated devices were mobile and cordless phones, since they emit radiofrequency electromagnetic fields (RF-EMF). In addition to the brain, another organ, the thyroid gland, also receives high exposure. The incidence of thyroid cancer is increasing in many countries, especially the papillary type that is the most radiosensitive type.

methodsWe used the Swedish Cancer Register to study the incidence of thyroid cancer during 1970-2013 using joinpoint regression analysis.

resultsIn women, the incidence increased statistically significantly during the whole study period; average annual percentage change (AAPC) +1.19 % (95 % confidence interval (CI) +0.56, +1.83 %). Two joinpoints were detected, 1979 and 2001, with a high increase of the incidence during the last period 2001-2013 with an annual percentage change (APC) of +5.34 % (95 % CI +3.93, +6.77 %). AAPC for all men during 1970-2013 was +0.77 % (95 % CI -0.03, +1.58 %). One joinpoint was detected in 2005 with a statistically significant increase in incidence during 2005-2013; APC +7.56 % (95 % CI +3.34, +11.96 %). Based on NORDCAN data, there was a statistically significant increase in the incidence of thyroid cancer in the Nordic countries during the same time period. In both women and men a joinpoint was detected in 2006. The incidence increased during 2006-2013 in women; APC +6.16 % (95 % CI +3.94, +8.42 %) and in men; APC +6.84 % (95 % CI +3.69, +10.08 %), thus showing similar results as the Swedish Cancer Register. Analyses based on data from the Cancer Register showed that the increasing trend in Sweden was mainly caused by thyroid cancer of the papillary type.

conclusionsWe postulate that the whole increase cannot be attributed to better diagnostic procedures. Increasing exposure to ionizing radiation, e.g. medical computed tomography (CT) scans, and to RF-EMF (non-ionizing radiation) should be further studied. The design of our study does not permit conclusions regarding causality.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolElectromagnetic FieldsFemaleHumansIncidenceInfantMaleMiddle AgedRegistriesRegression AnalysisSurveys and QuestionnairesCordless phoneIncidenceIonizing radiationMobile phoneNORDCANNordic countriesRadiofrequency electromagnetic fieldsRF-EMFSwedish Cancer RegisterThyroid cancer

Identifiers

PMID27388603
PMCPMC4937579
OpenAlexW2464983529

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.