Pooled analysis of two Swedish case-control studies on the use of mobile and cordless telephones and the risk of brain tumours diagnosed during 1997-2003

Int J Occup Saf Ergon. 2007;13(1):63-71. doi: 10.1080/10803548.2007.11076709.


Here we present the pooled analysis of 2 case-control studies on the association of brain tumours with mobile phone use. Use of analogue cellular phones increased the risk for acoustic neuroma by 5%, 95% confidence interval (CI) = 2-9% per 100 hrs of use. The risk increased for astrocytoma grade III-IV with latency period with highest estimates using >10-year time period from first use of these phone types. The risk increased per one year of use of analogue phones by 10%, 95% CI = 6-14%, digital phones by 11%, 95% CI = 6-16%, and cordless phones by 8%, 95% CI = 5-12%. For all studied phone types OR for brain tumours, mainly acoustic neuroma and malignant brain tumours, increased with latency period, especially for astrocytoma grade III-IV.

MeSH terms

  • Brain Neoplasms / etiology*
  • Case-Control Studies
  • Cell Phone / statistics & numerical data
  • Humans
  • Risk Assessment
  • Sweden
  • Telephone / statistics & numerical data*
  • Time Factors