Cell and cordless phone risk for glioma - Analysis of pooled case-control studies in Sweden, 1997-2003 and 2007-2009
Hardell L, Carlberg M, · 2014
View Original AbstractLong-term mobile phone users face triple the brain tumor risk after 25 years, with cordless phones showing similar patterns.
Plain English Summary
Swedish researchers analyzed phone use patterns among 1,498 brain tumor patients and 3,530 healthy controls to investigate glioma risk. They found that mobile phone use increased brain tumor risk by 30% overall, with the risk tripling for users with over 25 years of exposure. Cordless phone use also increased risk by 40%, with the highest risk occurring when people held the phone on the same side of their head where the tumor developed.
Why This Matters
This pooled analysis from Sweden's Hardell research group represents some of the most compelling evidence linking wireless phone use to brain cancer risk. What makes this study particularly significant is the dose-response relationship the researchers found - meaning risk increased with both duration of use and cumulative hours of exposure. The tripling of glioma risk after 25 years of mobile phone use is especially concerning given that many people today have been using cell phones for decades. The finding that risk was highest when phones were used on the same side of the head where tumors developed (ipsilateral use) strengthens the biological plausibility of a causal relationship. While industry-funded studies often show no increased risk, this independent research adds to a growing body of evidence suggesting we need to take wireless radiation exposure more seriously, particularly for long-term users and young people whose developing brains may be more vulnerable.
Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
The aim of this study is to investigate Cell and cordless phone risk for glioma - Analysis of pooled case-control studies in Sweden, 1997-2003 and 2007-2009
We made a pooled analysis of two case-control studies on malignant brain tumours with patients diagn...
In total, 1498 (89%) cases and 3530 (87%) controls participated. Mobile phone use increased the risk...
The highest risk was found for glioma in the temporal lobe. First use of mobile or cordless phone before the age of 20 gave higher OR for glioma than in later age groups.
Show BibTeX
@article{l_2014_cell_and_cordless_phone_2180,
author = {Hardell L and Carlberg M and},
title = {Cell and cordless phone risk for glioma - Analysis of pooled case-control studies in Sweden, 1997-2003 and 2007-2009},
year = {2014},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0928468014000649?via%3Dihub},
}