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Decreased Survival of Glioma Patients with Astrocytoma Grade IV (Glioblastoma Multiforme) Associated with Long-Term Use of Mobile and Cordless Phones.

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Carlberg M, Hardell L. · 2014

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Long-term wireless phone users with brain cancer face 2-3 times higher death rates, suggesting radiation worsens tumor outcomes.

Plain English Summary

Summary written for general audiences

Swedish researchers analyzed survival data from 1,678 brain cancer patients and found that those who used mobile or cordless phones for more than 20 years had significantly worse survival rates. Patients with glioblastoma (the most aggressive brain cancer) who were long-term phone users were 2-3 times more likely to die sooner than non-users. This suggests that radiofrequency radiation from wireless phones may not only increase brain cancer risk but also make existing tumors more deadly.

Why This Matters

This study represents a troubling escalation in our understanding of wireless phone health risks. While previous research focused on whether phones cause brain cancer, this Swedish analysis reveals something potentially more sinister: that long-term phone use appears to worsen survival outcomes for those who do develop brain tumors. The hazard ratios are substantial - a 200% increased death risk for mobile phone users and 340% for cordless phone users with glioblastoma after 20+ years of use. What makes this particularly concerning is that these exposure levels reflect normal consumer use patterns that millions experience daily. The researchers' call for RF-EMF to be reclassified as a definitive human carcinogen, rather than just 'possibly carcinogenic,' deserves serious regulatory attention. This isn't just about prevention anymore - it's about the survival of people who already have brain cancer.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

The aim of this study is to investigate Decreased survival of glioma patients with astrocytoma grade IV (glioblastoma multiforme) associated with long-term use of mobile and cordless phones

We analysed survival of 1678 glioma patients in our 1997-2003 and 2007-2009 case-control studies.

Use of wireless phones in the >20 years latency group (time since first use) yielded an increased ha...

Cite This Study
Carlberg M, Hardell L. (2014). Decreased Survival of Glioma Patients with Astrocytoma Grade IV (Glioblastoma Multiforme) Associated with Long-Term Use of Mobile and Cordless Phones. Int J Environ Res Public Health. 11(10):10790-10805, 2014.
Show BibTeX
@article{m_2014_decreased_survival_of_glioma_1951,
  author = {Carlberg M and Hardell L.},
  title = {Decreased Survival of Glioma Patients with Astrocytoma Grade IV (Glioblastoma Multiforme) Associated with Long-Term Use of Mobile and Cordless Phones.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25325361/},
}
PubMed: 25325361

Cited By (48 papers)

Quick Questions About This Study

Yes, Swedish research found that brain cancer patients who used mobile or cordless phones for over 20 years had significantly worse survival rates. Glioblastoma patients with long-term phone use were 2-3 times more likely to die sooner than non-users, suggesting wireless radiation may make existing tumors more deadly.
Research shows phone radiation does affect brain tumor survival. A 2014 study of 1,678 patients found those using wireless phones for more than 20 years had 70% higher death rates from glioma and up to 240% higher death rates from aggressive glioblastoma tumors.
Yes, cordless phones appear particularly harmful for brain cancer patients. Swedish researchers found glioblastoma patients who used cordless phones for over 20 years were 3.4 times more likely to die sooner, making cordless phones potentially more dangerous than mobile phones for cancer survival.
Long-term phone use increases both brain cancer risk and death rates. Patients using wireless phones for over 20 years showed 70% higher death rates from brain tumors, with the most aggressive cancers (glioblastoma) showing 200-340% higher death rates depending on phone type.
Cell phone radiation significantly reduces glioblastoma survival rates. Swedish research found patients with over 20 years of mobile phone use had twice the death rate from this aggressive brain cancer, while cordless phone users had over three times the death rate.