Location of gliomas in relation to mobile telephone use: A case-case and case-specular analysis

Suvi Larjavaara, Joachim Schüz, Anthony Swerdlow, Maria Feychting, Christoffer Johansen, Susanna Lagorio, Tore Tynes, Lars Klaeboe, Sven Reidar Tonjer, Maria Blettner, Gabriele Berg-Beckhoff, Brigitte Schlehofer, Minouk Schoemaker, Juliet Britton, Riitta Mäntylä, Stefan Lönn, Anders Ahlbom, Olof Flodmark, Anders Lilja, Stefano MartiniEmanuela Rastelli, Antonello Vidiri, Veikko Kähärä, Jani Raitanen, Sirpa Heinävaara, Anssi Auvinen

Research output: Contribution to journalArticlepeer-review

Abstract

The energy absorbed from the radio-frequency fields of mobile telephones depends strongly on distance from the source. The authors' objective in this study was to evaluate whether gliomas occur preferentially in the areas of the brain having the highest radio-frequency exposure. The authors used 2 approaches: In a case-case analysis, tumor locations were compared with varying exposure levels; in a case-specular analysis, a hypothetical reference location was assigned for each glioma, and the distances from the actual and specular locations to the handset were compared. The study included 888 gliomas from 7 European countries (2000-2004), with tumor midpoints defined on a 3-dimensional grid based on radiologic images. The case-case analyses were carried out using unconditional logistic regression, whereas in the case-specular analysis, conditional logistic regression was used. In the case-case analyses, tumors were located closest to the source of exposure among never-regular and contralateral users, but not statistically significantly. In the case-specular analysis, the mean distances between exposure source and location were similar for cases and speculars. These results do not suggest that gliomas in mobile phone users are preferentially located in the parts of the brain with the highest radio-frequency fields from mobile phones.

Original languageEnglish
Pages (from-to)2-11
Number of pages10
JournalAmerican Journal of Epidemiology
Volume174
Issue number1
DOIs
Publication statusPublished - Jul 1 2011

Keywords

  • brain neoplasms
  • cellular phone
  • glioma
  • telephone

ASJC Scopus subject areas

  • Epidemiology

Fingerprint Dive into the research topics of 'Location of gliomas in relation to mobile telephone use: A case-case and case-specular analysis'. Together they form a unique fingerprint.

Cite this