Due to the highly localized exposure from mobile phones, the preferred side of the head during their use is important information when investigating a possible link with brain tumour risk, but at the same time, error and bias hamper the assessment of this information in case-control studies. Current studies provide evidence of reporting bias insofar as cases appear to over-report the side of the head where the tumour occurred as the one that they preferred in the past when using mobile phones. More refined methods of analysis among only cases or prospective studies with an assessment of the laterality of mobile phone use before the diagnosis of disease are needed to evaluate whether associations seen in some studies are entirely due to reporting bias or a mixture of reporting bias and a causal effect.
Cardis E., Deltour I., Mann S., Moissonnier M., Taki M., Varsier N., et al. Distribution of RF energy emitted by mobile phones in anatomical structures of the brain. Phys Med Biol2008 ;53:2771-83.
2.
Hardell L. , Hallquist A., Hansson Mild K., Carlberg M., Pahlson A., Lilja A.Cellular and cordless telephones and the risk for brain tumors. Eur J Cancer Prev2002;11:1-10.
3.
Hardell L. , Mild KH, Carlberg M., Söderqvist F.Tumour risk associated with use of cellular telephones or cordless desktop telephones. World J Surg Oncol2006;4:74.
4.
Lahkola A. , Auvinen A., Raitanen J., Schoemaker MJ, Christensen HC, Feychting M., et al. Mobile phone use and risk of glioma in 5 NorthEuropean countries. Int J Cancer2007;120:1769-75.
5.
Lahkola A. , Salminen T., Raitanen J., Heinävaara S., Schoemaker M., Christensen HC, et al. Meningioma and mobile phone use - a collaborative case-control study in five NorthEuropean countries. Int J Epidemiol2008; 37:1304-13.
6.
Hepworth SJ , Schoemaker MJ, Muir KR, Swerdlow AJ, van Tongeren MJ, McKinney PAMobile phone use and risk of glioma in adults: case-control study. BMJ2006;332:883-7.
7.
Cardis E., Richardson L., Deltour I., Armstrong B., Feychting M., Johansen C., et al. The INTERPHONE study: design, epidemiological methods, and description of the study population. Eur J Epidemiol2007 ;22:647-64.
8.
Hardell L. , Carlberg M., Söderqvist F., Hansson Mild K.Meta-analysis of long-term mobile phone use and the association with brain tumours. Int J Oncol2008;32: 1097-103.
9.
Schüz J., Jacobsen R., Olsen JH, Boice Jr JD, McLaughlin JK, Johansen C.Cellular telephone use and cancer risk: update of a nationwide Danish cohort. J Natl Cancer Inst2006;98: 1707-13.
10.
NORDCAN database based on the Nordic population-based cancer registries at http://www-dep.iarc.fr/nordcan.htm (International Agency for Research on Cancer) (accessed 26 June 2009).
11.
Vrijheid M., Richardson L., Armstrong BK, Auvinen A., Berg-Beckhoff G., Carroll M., et al. Quantifying the impact of selection bias caused by non-participation in a case-control study of mobile phone use . Ann Epidemiol2009;19:33-41.
12.
Schoemaker MJ , Swerdlow AJ, Ahlbom A., Auvinen A., Blaasaas KG, Cardis E., et al. Mobile phone use and risk of acoustic neuroma: results of the Interphone case-control study in five NorthEuropean countries. Br J Cancer2005; 93:842-8.
13.
Sadetzki S., Chetrit A., Jarus-Hakak A., Cardis E., Deutch Y., Duvdevani S., et al. Cellular phone use and risk of benign and malignant parotid gland tumors - a nationwide case-control study. Am J Epidemiol2008;167:457-67.
14.
Kan P., Simonsen SE, Lyon JL, Kestle JRCellular phone use and brain tumor: a meta-analysis. J Neurooncol2008; 86:71-8.
15.
Schüz J., Lagorio M., Bersani F.Electromagnetic fields and epidemiology: An overview inspired by the fourth course at the International School of Bioelectromagnetics . Bioelectromagnetics2009e-pub ahead of print May 28.
16.
Vrijheid M., Cardis E., Armstrong BK, Auvinen A., Berg G., Blaasaas KG, et al. Validation of short-term recall of mobile phone use for the Interphone study. Occup Environ Med2006;63:237-43.
17.
Vrijheid M., Armstrong BK, Bédard D., Brown J., Deltour I., Iavarone I., et al. Recall bias in the assessment of exposure to mobile phones. J Expo Sci Environ Epidemiol2009;19: 369-81.
