Study: malignant brain tumors in connection with the use of mobile phones and cordless phones

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Referenz Hardell L, Carlberg M, Söderqvist F, Mild KH. Fall-Kontroll-Studie zum Zusammenhang zwischen bösartigen Hirntumoren, die zwischen 2007 und 2009 diagnostiziert wurden, und der Nutzung von Mobiltelefonen und schnurlosen Telefonen. Int. J. Oncol. 2013;43(6):1833-1845. Design Fall-Kontroll-Studie Einstellung Daten, die von Patienten in der Abteilung für Onkologie, Universitätskrankenhaus, Orebro, Schweden, erhoben wurden Teilnehmer Es gab 593 Teilnehmer, davon 350 männlich. Die Teilnehmer waren zwischen 18 und 75 Jahre alt und wurden zwischen 2007 und 2009 mit bösartigen Hirntumoren verschiedener Grade diagnostiziert. Zusätzlich gab es 1.368 übereinstimmende Kontrollen. Studienmethode Die Exposition wurde durch einen selbstausgefüllten Fragebogen bewertet. Es wurde eine bedingungslose logistische …
Reference Hardell L, Carlberg M, Söderqvist F, Mild KH. Case control study on the connection between malignant brain tumors that were diagnosed between 2007 and 2009 and the use of mobile phones and cordless phones. Int. J. Oncol. 2013; 43 (6): 1833-1845. Design case-control study Setting Data that patients in the oncology department, university hospital, orbro, Sweden, participants were raised there were 593 participants, including 350 male. The participants were between 18 and 75 years old and were diagnosed between 2007 and 2009 with malignant brain tumors of various degrees. In addition, there were 1,368 corresponding controls. Study method The exposure was assessed by a self -filled questionnaire. It became an unconditional logistical ... (Symbolbild/natur.wiki)

Reference

Hardell L, Carlberg M, Söderqvist F, Mild KH. Case control study on the connection between malignant brain tumors that were diagnosed between 2007 and 2009 and the use of mobile phones and cordless phones. int. J. Oncol. 2013; 43 (6): 1833-1845.

Design

Fall control study

Setting

Data that were raised by patients in the department for oncology, university hospital, Orebro, Sweden,

participant

There were 593 participants, including 350 male. The participants were between 18 and 75 years old and were diagnosed between 2007 and 2009 with malignant brain tumors of various degrees. In addition, there were 1,368 corresponding controls.

study method

The exposure was assessed by a self -filled questionnaire. An unconditional logistical regression analysis was used, with age, gender, year of diagnosis and socio -economic index being adjusted using the entire check sample.

target parameter

The ODDS Ratio (OR) was calculated based on the type of telephone use and the exposure period (defined as "latency"). The cumulative use of a total of 39 hours or less for the controls was used as a limit for the reference group "No exposure" in cases and controls. The latency was analyzed using 6 periods: less than 1 to 5 years, 5 to 10 years, 10 to 15 years, 15 to 20 years, 20 to 25 years and over 25 years. In order to further determine the dose-effect relationship, the cumulative use of the telephone types based on the overall usage of mobile phones under the controls was divided into quarters: first quartile was 39 hours to 405 hours, second quartile 406 hours to 1,091 hours, third quartile 1,092 to 2,376 hours over 2,376 hours.

important knowledge

This study showed a connection between the use of mobile phones and cordless telephones and malignant brain tumors as well as an increased risk of ipsilateral use and latency (time since the first exposure).
Overall, there was a statistically significantly increased risk of malignant brain tumors in connection with mobile phones: OR: 1.7; Confidence interval (AI): 1.04-2.8. The trend showed an increased risk in the group of under 1 to 5 year olds with a waste in the group of 5 to 10 year olds and the group of 10 to 15 year olds. The highest risk in people with an exposure of at least 25 years: OR: 3.0; CI: 1.5-6.0. The risk increased with increasing use when it was stratified in 100-hour steps and a stronger association between ipsilateral and contralateral use.
telephone type and latency time have been stratified. Mobile use with analog phrases increased risk: OR: 1.8; CI: 1.04-1.33. This increased with increasing latency and reached OR: 3.3; CI: 1.6-6.9 for those with a latency of more than 25 years. Use of digital 2G mobile phones results in OR: 1.6; AI: 0.996–2.7, and those with a latency of 15 to 20 years rose on OR: 2.1; CI: 1.2-3.6. The use of cordless phones had OR: 1.7; CI: 1.1–2.9, and this increased on OR: 2.1; CI: 1.2-3.8 for participants between 15 and 20 years of latency. There were not enough data available to reliably analyze 3G-Wireless.

practice implications

The wireless telephone Technology was originally widespread in the Nordic countries, which led to key dates in relation to latency studies. This Swedish study uses completely new data from the use of mobile phones and cordless table phones for more than 10 years and evaluates especially malignant brain tumors. The new data can be compared to the large interphone study from 2010, a great international cooperation that was with regard to a connection with brain tumors and exposure to high-frequency electromagnetic fields (RF-EMFS) by using mobile phones for 10 years or less. malignant brain tumors and shows a higher risk with an increased latency of 15 to 25 years. In this publication, the authors found a number of animal cell studies that show the activity of free radicals in cells that were induced by HF-EMF exposure, which led to DNA damage. 2-4 They emphasize that their study continues to support the hypothesis that HF-EMF over time for triggering and developing carcinogenesis contribute.
decades after the introduction of wireless telecommunications, the safety of mobile phones still has to be tackled in a sensible way.
How do we recognize and use the assembly data as a clinician? The Swedish study focuses on the risks related to the cumulative use of mobile phones. The pandora's box was undeniably opened, and the consequences developed in front of us. As a culture, we would find it difficult to no longer use mobile phones, cordless telephones and the countless available wireless technologies in order to combat our insatiable desire for data calls and accessibility. But the evidence is difficult to avert: Our brain is influenced by the high frequencies that are broadcast by the ubiquitous devices that are firmly woven into our cultural structure.
HF-EMF are not only broadcast by cordless and mobile phones, but also by WLAN routers, Bluetooth headsets and even baby phones. Two of the most endangered population groups are primary school children and adolescents. Recent surveys show that 78 % of adolescents have a mobile phone and that 56 % of the children between 8 and 12 years of age have a mobile phone. 5.6 A recently published pilot study reported that the majority of young people take their phones to bed, which means that they are exposed to continuous HF exposure all night. For decades after the introduction of wireless telecommunications, the safety of mobile phones still has to be tackled in a sensible way, perhaps because it is covered by the perceived advantages and amenities that the technology offers. More data must be collected and evaluated, especially with the knowledge that the risks are cumulative. An analysis publishes in electromagnetic biology and medicine describes the certification process for the safety of mobile phones, which significantly underestimates the specific absorption rate for most users, especially children. To use - standards currently apply in other countries.
The security measures that can be taken include reducing our total consumption, switching off devices - including routers - if they are not used, and compliance with a safety distance between wireless technology and the brain. Comfortable headphones or air hose technology are available and can enlarge the distance between the user's brain and the mobile phone. An SMS can also be used instead of making calls. The reintroduction of old corded landline connections at home can further reduce the exposure. It is particularly important for children and adolescents to stay away from cell phones. The exercise of parental privileges and personal self -control may be necessary in a culture that promotes the extensive introduction of wireless technology. The knowledge of the risks and the implementation of basic protective measures may benefit today's and future generations.

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