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Mobile Phone Use and Incidence of Glioma in the Nordic Countries 1979–2008: Consistency Check

Deltour, Isabelle, Auvinen, Anssi, Feychting, Maria, Johansen, Christoffer, Klaeboe, Lars, Sankila, Risto, Schüz, Joachim·2012·Epidemiology
DOI 10.1097/ede.0b013e3182448295
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Abstract

Background Some case-control studies have reported increased risks of glioma associated with mobile phone use. If true, this would ultimately affect the time trends for incidence rates (IRs). Correspondingly, lack of change in IRs would exclude certain magnitudes of risk. We investigated glioma IR trends in the Nordic countries, and compared the observed with expected incidence rates under various risk scenarios. Methods We analyzed annual age-standardized incidence rates in men and women aged 20 to 79 years during 1979-2008 using joinpoint regression (35,250 glioma cases). Probabilities of detecting various levels of relative risk were computed using simulations. Results For the period 1979 through 2008, the annual percent change in incidence rates was 0.4% (95% confidence interval = 0.1% to 0.6%) among men and 0.3% (0.1% to 0.5%) among women. Incidence rates have decreased in young men (20-39 years) since 1987, remained stable in middle-aged men (40-59 years) throughout the 30-year study period, and increased slightly in older men (60-79 years). In simulations, assumed relative risks for all users of 2.0 for an induction time of up to 15 years, 1.5 for up to 10 years, and 1.2 for up to 5 years were incompatible with observed incidence time trends. For heavy users of mobile phones, risks of 2.0 for up to 5 years' induction were also incompatible. Conclusion No clear trend change in glioma incidence rates was observed. Several of the risk increases seen in case-control studie…

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Research works printed but not linked: 36

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Metadata

Authors
Deltour, I., Auvinen, A., Feychting, M., Johansen, C., Klaeboe, L., Sankila, R., & Schüz, J.
Venue
Epidemiology
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
2012-03
Volume
23
Issue
2
Pages
301-307
ISSN
1044-3983
DOI
10.1097/ede.0b013e3182448295
Cited by
105
References
0
Language
en

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