Evidence map›Paper›PMID 33297463›Full record

ArticleInternational journal of environmental research and public health2020

Is the Increasing Incidence of Thyroid Cancer in the Nordic Countries Caused by Use of Mobile Phones?

Michael Carlberg, Tarmo Koppel, Lena K Hedendahl, Lennart Hardell

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–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.

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

8 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Cell Phone Radiation Exposure Limits and Engineering Solutions.International journal of environmental research and public health · 2023
    Review
  7. Article
  8. Review
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.

Michael CarlbergThe Environment and Cancer Research Foundation, Studievägen 35, SE 702 17 Örebro, Sweden.
Tarmo KoppelSchool of Business and Governance, Tallinn University of Technology, SOC353 Ehitajate Tee 5, 19086 Tallinn, Estonia.
Lena K HedendahlThe Environment and Cancer Research Foundation, Studievägen 35, SE 702 17 Örebro, Sweden.
Lennart HardellThe Environment and Cancer Research Foundation, Studievägen 35, SE 702 17 Örebro, Sweden.ORCID 0000-0001-8131-2337

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The International Agency for Research on Cancer (IARC) at the World Health Organization (WHO) categorized in 2011 radiofrequency (RF) as a possible human carcinogen, Group 2B. During use of the handheld wireless phone, especially the smartphone, the thyroid gland is a target organ. During the 21st century, the incidence of thyroid cancer is increasing in many countries. We used the Swedish Cancer Register to study trends from 1970 to 2017. During that time period, the incidence increased statistically significantly in women with average annual percentage change (AAPC) +2.13%, 95% confidence interval (CI) +1.43, +2.83%. The increase was especially pronounced during 2010-2017 with annual percentage change (APC) +9.65%, 95% CI +6.68, +12.71%. In men, AAPC increased during 1970-2017 with +1.49%, 95% CI +0.71, +2.28%. Highest increase was found for the time period 2001-2017 with APC +5.26%, 95% CI +4.05, +6.49%. Similar results were found for all Nordic countries based on NORDCAN 1970-2016 with APC +5.83%, 95% CI +4.56, +7.12 in women from 2006 to 2016 and APC + 5.48%, 95% CI +3.92, +7.06% in men from 2005 to 2016. According to the Swedish Cancer Register, the increasing incidence was similar for tumors ≤4 cm as for tumors >4 cm, indicating that the increase cannot be explained by overdiagnosis. These results are in agreement with recent results on increased thyroid cancer risk associated with the use of mobile phones. We postulate that RF radiation is a causative factor for the increasing thyroid cancer incidence.

Indexed as

Cell PhoneThyroid NeoplasmsElectromagnetic FieldsFemaleHumansIncidenceMaleRadio WavesScandinavian and Nordic Countriescordless phoneincidenceionizing radiationmobile phoneNORDCANNordic countriesradiofrequency electromagnetic fieldsRF-EMFSwedish Cancer Registerthyroid cancer

Identifiers

PMID33297463
PMCPMC7730276

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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.