BMJ  2006;332:1035 (29 April), doi:10.1136/bmj.332.7548.1035-a

Letter

Mobile phone use and risk of glioma in adults

Results are difficult to interpret because of limitations

The first 150 words of the full text of this article appear below.

EDITOR—The UK part of the Interphone study concluded that mobile phone use is not associated with an increased risk of glioma.¹ However, 10 years ipsilateral use yielded an odds ratio of 1.60 (95% confidence interval 0.92 to 2.76) and contralateral use an odds ratio of 0.78 (0.85 to 1.3).

Only 51% of the cases and 45% of the controls participated. Controls were more affluent than non-participating controls and participating cases. Mobile phone use is associated with social class. In our study use of cellular telephones was reported by 48% of the most affluent cases and 36% of the least affluent.^{2 3}

Credit: MARTIN LEE/REX

 

Use of cordless telephones was not assessed and in the analysis of laterality the "unexposed" group contained subjects with exposure to microwaves on the opposite side of the head.

In table 3, 13 of the 14 odds ratios are < 1.0 and one is > . . . [Full text of this article]

Department of Oncology, University Hospital, SE-701 85 örebro, Sweden lennart.hardell@orebroll.se

National Institute for Working Life, SE-907 13 Umeå, Sweden

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