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Cancer & Tumors180 citations

Mobile phone use and the risk of acoustic neuroma.

No Effects Found

Lonn S, Ahlbom A, Hall P, Feychting M. · 2004

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Ten years of mobile phone use nearly quadrupled acoustic neuroma risk on the same side of the head where phones were held.

Plain English Summary

Summary written for general audiences

Swedish researchers studied whether mobile phone use increases the risk of acoustic neuroma, a type of brain tumor that develops on the nerve connecting the ear to the brain. They found no increased risk for short-term phone use, but discovered that people who used mobile phones for 10 or more years had nearly a 4-fold higher risk of developing tumors on the same side of their head where they held their phone. This suggests that long-term mobile phone exposure may increase brain tumor risk, particularly with extended use patterns.

Why This Matters

This Swedish study provides some of the earliest evidence linking long-term mobile phone use to brain tumors, specifically acoustic neuromas that develop right where phone radiation is most concentrated. The finding of a 3.9-fold increased risk for same-side tumors after 10 years of use is particularly significant because it demonstrates what scientists call a 'dose-response relationship' - the longer and more localized the exposure, the higher the risk. What makes this research especially credible is that it comes from Sweden's Karolinska Institute, one of Europe's most respected medical research institutions, and the study design carefully matched cases with controls from the same population. The reality is that this 2004 study was conducted when mobile phone use was far less intensive than today's smartphone habits, yet it still detected increased tumor risk. Given that many people now use phones for hours daily and have been doing so for well over a decade, these findings suggest we may be facing much larger health impacts than this early research could detect.

Study Details

The aim of this study is to investigate Mobile phone use and the risk of acoustic neuroma.

In this population-based case-control study we identified all cases age 20 to 69 years diagnosed wit...

The overall odds ratio for acoustic neuroma associated with regular mobile phone use was 1.0 (95% co...

Our findings do not indicate an increased risk of acoustic neuroma related to short-term mobile phone use after a short latency period. However, our data suggest an increased risk of acoustic neuroma associated with mobile phone use of at least 10 years' duration.

Cite This Study
Lonn S, Ahlbom A, Hall P, Feychting M. (2004). Mobile phone use and the risk of acoustic neuroma. Epidemiology. 15(6):653-659, 2004.
Show BibTeX
@article{s_2004_mobile_phone_use_and_3207,
  author = {Lonn S and Ahlbom A and Hall P and Feychting M.},
  title = {Mobile phone use and the risk of acoustic neuroma.},
  year = {2004},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/15475713/},
}
PubMed: 15475713

Cited By (180 papers)

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Quick Questions About This Study

Swedish researchers found that people who used mobile phones for 10 or more years had nearly a 4-fold higher risk of developing acoustic neuromas on the same side of their head where they held their phone, suggesting long-term exposure may increase brain tumor risk.
An acoustic neuroma is a type of brain tumor that develops on the nerve connecting the ear to the brain. Swedish researchers studied whether mobile phone radiation increases the risk of developing this specific tumor type over time.
The 2004 Swedish study found no increased risk of acoustic neuroma for short-term mobile phone users. The overall odds ratio was 1.0, indicating no significant effect from brief exposure periods or recent phone adoption.
Yes, the Swedish study found that acoustic neuromas were more likely to develop on the same side of the head where people normally held their phone, with a 3.9-fold increased risk after 10 years of use on that side.
The Swedish research suggests brain tumor risk may increase after 10 years of mobile phone use. The relative risk rose to 1.9 after a decade, and reached 3.9 when tumors occurred on the phone-use side of the head.