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Gehoor verslechtert bij regelmatig mobiel telefoneren    
Ga naar overzicht berichten in: Onderzoeken

Gehoor verslechtert bij regelmatig mobiel telefoneren
zondag, 02 juli 2006 - Dossier: Algemeen


Mensen die 4 jaar zo'n 2 uur per dag gemiddeld bellen, hebben een duidelijk slechter gehoor dan mensen die niet of slechts 10-20 minuten per dag bellen.

Electromagn Biol Med. 2006;25(1):13-21. Related Articles, Links
www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16595330&query_hl=1&itool=pubmed_docsum

Effects of intensive and moderate cellular phone use on hearing function.

Oktay MF, Dasdag S.

Department of Otolaryngology, Medical School of Dicle University, Diyarbakir, Turkey.

The purpose of this study is to investigate the effects of radiation emitted by mobile phones on the hearing of users. The study was carried out on three groups: 1) 20 men who have used a cellular phone frequently and spoken approximately 2 h per day for four years; 2) 20 men who have used a cellular phone for 10-20 min per day for four years; and 3) 20 healthy men who have never used a cellular phone (the control group). Brainstem evoked response audiometric (BERA) and pure tone audiometric (PTA) methods were used to measure the effects of exposure on hearing function of the subjects. In BERA measurements, I-III, III-V, and I-V interpeak latencies were evaluated. Interpeak latency of subjects in two experimental groups was compared to that of subjects in the control group. The BERA results showed no differences among the groups (p > 0.05). In PTA measurements, detection thresholds at 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 Hz frequencies were measured in all three groups. No differences were observed between moderate mobile phone users (10-20 min. per day) and control subjects. However, detection thresholds in those who talked approximately 2 h per day were found to be higher than those in either moderate users or control subjects. Differences at 4000 Hz for both bone and air conduction for right ears, and 500 Hz, and 4000 Hz bone and air conduction for left ears were significant for mean hearing threshold. This study shows that a higher degree of hearing loss is associated with long-term exposure to electromagnetic (EM) field generated by cellular phones.


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