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Geschreven: zondag 19 juni 2011 21:46

Onderstaand onderzoek is een meta-analyse van alle bestaande studies 

(case-controlled, Cohort-studies, pooled- en meta-analyses) mbt het verband 

tussen langdurig mobiel bellen en het verhoogde risico voor hersentumoren aan

de belzijde van het hoofd (ipseraal). Daarbij werd ook de bron van financiering, 

de methodologie, de bias en de al dan niet blind uitgevoerde studies onderzocht 

op hun waarde.
 

De auteurs concluderen dat er significante data zijn van een verdubbeling van 

het risico op kanker bij langdurig mobiel bellers.

> Mobile phones and head tumours. The discrepancies in cause-effect
> relationships in the epidemiological studies - how do they arise?
>
> authors: A.Levis, P. Ricci,V.Gennaro, N.Minicucci, S.Garbisa
>
> Environmental Health 2011, 10:59  in peer-reviewed gepubliceerd op 17 juni 
> 2011.
>
> http://www.ehjournal.net/content/10/1/59/abstract
>
> Abstract (provisional)
>
> Background
>
> whether or not there is a relationship between use of mobile phones
> (analogue and digital cellulars, and cordless) and head tumour risk
> (brain tumours, acoustic neuromas, and salivary gland tumours) is
> still a matter of debate; progress requires a critical analysis of the
> methodological elements necessary for an impartial evaluation of
> contradictory studies.
>
> Methods
>
> a close examination of the protocols and results from all case-control
> and cohort studies, pooled- and meta-analyses on head tumour risk for
> mobile phone users was carried out, and for each study the elements
> necessary for evaluating its reliability were identified. In addition,
> new meta-analyses of the literature data were undertaken. These were
> limited to subjects with mobile phone latency time compatible with the
> progression of the examined tumours, and with analysis of the
> laterality of head tumour localisation corresponding to the habitual
> laterality of mobile phone use.
>
> Results
>
> blind protocols, free from errors, bias, and financial conditioning
> factors, give positive results that reveal a cause-effect relationship
> between long-term mobile phone use or latency and statistically
> significant increase of ipsilateral head tumour risk, with biological
> plausibility. Non-blind protocols, which instead are affected by
> errors, bias, and financial conditioning factors, give negative
> results with systematic underestimate of such risk. However, also in
> these studies a statistically significant increase in risk of
> ipsilateral head tumours is quite common after more than 10 years of
> mobile phone use or latency. The meta-analyses , our included,
> examining only data on ipsilateral tumours in subjects using mobile
> phones since or for at least 10 years, show large and statistically
> significant increases in risk of ipsilateral brain gliomas and
> acoustic neuromas.
>
> Conclusion
>
> our analysis of the literature studies and of the results from
> meta-analyses of the significant data alone shows an almost doubling
> of the risk of head tumours induced by long-term mobile phone use or
> latency.
>
> The complete article is available as a provisional PDF. The fully
> formatted PDF and HTML versions are in production.

Mvg
Jan Allein
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