Article

Systematic review of wireless phone use and brain cancer and other head tumors

Department of Information Engineering, Electronics and Telecommunications, "La Sapienza" University of Rome, Italy.
Bioelectromagnetics (Impact Factor: 1.86). 04/2012; 33(3):187-206. DOI: 10.1002/bem.20716
Source: PubMed

ABSTRACT We conducted a systematic review of scientific studies to evaluate whether the use of wireless phones is linked to an increased incidence of the brain cancer glioma or other tumors of the head (meningioma, acoustic neuroma, and parotid gland), originating in the areas of the head that most absorb radiofrequency (RF) energy from wireless phones. Epidemiology and in vivo studies were evaluated according to an agreed protocol; quality criteria were used to evaluate the studies for narrative synthesis but not for meta-analyses or pooling of results. The epidemiology study results were heterogeneous, with sparse data on long-term use (≥ 10 years). Meta-analyses of the epidemiology studies showed no statistically significant increase in risk (defined as P < 0.05) for adult brain cancer or other head tumors from wireless phone use. Analyses of the in vivo oncogenicity, tumor promotion, and genotoxicity studies also showed no statistically significant relationship between exposure to RF fields and genotoxic damage to brain cells, or the incidence of brain cancers or other tumors of the head. Assessment of the review results using the Hill criteria did not support a causal relationship between wireless phone use and the incidence of adult cancers in the areas of the head that most absorb RF energy from the use of wireless phones. There are insufficient data to make any determinations about longer-term use (≥ 10 years).

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    • "The huge diffusion of communication technologies based on radiofrequency (RF) electromagnetic (EM) fields, such as mobile communications (GSM, UMTS) and wireless data transfer (Wi-Fi, Wi-Max, Bluetooth, ZigBee, etc.), and their massive use in crowded environments, where people last for long time periods, as schools, hospitals, offices, and transportation means, have led to concern on possible health effects of this kind of low-level multiple exposure. As a consequence, a lot of in vitro, in vivo, and epidemiological studies have been carried out, often leading to conflicting results, as evident from literature reviews [1] [2] [3] [4] [5] [6]. "
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    • "The story was picked up in evening newscasts as well as print and digital outlets (CNN Health 2012). Evidence on cancer incidences associated with cell phone use has generally been debunked (Moulder et al. 1999; Repacholi et al. 2012). Nonetheless, there remain isolated studies suggesting a complicated and unsettling relationship (Dhawan and Handa 2012; Lin 2012). "
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    • "The conclusion of the IARC was mainly based on the INTERPHONE epidemiological study, which found an increased risk for glioma in the highest category of heavy users (30 minutes per day over a 10 year period), although no increased risk was found at lower exposure. The evidence for other types of cancer was found to be "inadequate" [5]. In vivo and in vitro studies, carried out so far, have provided only limited support for the above mentioned classification [6], mainly due to the difficulty in comparing the results of the available studies to draw general conclusion. "
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