15 oktober 2004: Bron: Karolinska Instituut

Zweedse onderzoekers hebben in een studie gevonden dat onder 750 proefpersonen na tienjarig gebruik van mobiel bellen bij de studiepersonen vier keer zo vaak een oortumor ontstond aan de oorkant van het bellen dan aan de andere kant. Daarnaast hadden de mensen die niet of minder vaak mobiel belden geen verhoogd risico op een oortumor, waardoor via twee onderzoeksgegevens het bewijs van verhoogd riscio op kanker door mobiel bellen werd geleverd. De onderzoekers en artsen haasten zich met te verklaren dat 1 studie nog niet veel zegt en dat nog veel meer studies nodig zijn en dat daar ook de nodige aandacht en zorg voor is. Maar feit blijft dat ook in Duitsland recent nog een studie heeft bewezen dat dichtbij wonen onder een zendmast ook een grotere kans op het krijgen van kanker geeft. En ook hier bagetelliseren de medische autoriteiten de studiegegevens. Hoe lang moet het toch duren voor economische belangen eens minimaal gelijk gesteld worden aan belangen die onze gezondheid betreffen? Hier een persbericht over deze studie.

Mobile phone 'ear tumours risk'
Thursday, 14 October, 2004, 10:12 GMT 11:12 UK

Using a mobile phone for 10 years or more increases the risk of ear tumours by four times, research suggests.

A 750-people study by Sweden's Karolinska Institute found the risk of acoustic neuroma rose by 3.9 times on the side of the head the phone is used. There was no increase in risk on the other side of the head - giving an overall rise in risk of 1.9 times. Acoustic neuroma is a benign tumour in the auditory nerve, which can cause brain and nerve damage. It affects one in 100,000 people. Those who had used mobile phones for less than 10 years were not at a greater risk, the team reported.

If people are concerned the simple way to avoid risk is to use a hands-free kit

Prof Anders Ahlbom, of the Karolinska Institute
Out of the 750 people who took part in the study, 150 had acoustic neuroma and of those one in 11 had used a mobile phone for at least a decade. Professor Anders Ahlbom, from the Stockholm-based institute, told BBC News Online he was "surprised" by his team's findings. "The results show there is a relatively substantial risk and we are hoping others will follow up our research. "We do not know what is causing it but the risk certainly increases over time." He said he would not go as far as warning people not to use mobile phones. But he added: "If people are concerned the simple way to avoid risk is to use a hands-free kit. "Our researched showed that the risk is only on the side of the head on which the mobile phone is used." Risk

At the time of the study only analogue mobile phones had been in use for more than 10 years. The majority of people now have digital (GSM) phones, which came on to the market in the mid to late 1990s. Some of the people who took part in the study had used both analogue and digital phones. There was no evidence to suggest solely using digital phones for 10 years increased the risk. Dr Michael Clarke, a spokesman for the National Radiological Protection Board, the UK's advisory group, said it was a "good study from a well respected institute". He said: "It is suggestive rather than conclusive but we will obviously take it into account when we issue guidance in the future."
And a spokeswoman for the Mobile Operators Association said: "The mobile phone industry takes very seriously questions relating to the safety of its products and is committed to addressing public concern in an open and transparent manner." But she added: "Individual studies must be seen in the light of the total research effort into mobile phone safety. There have been other recent studies that have failed to show any link between mobile phones and tumours." Three quarters of adults in the UK own or use a mobile phone. The mobile phone industry has always maintained there is no scientific evidence of negative effects from mobile phone use. But over the last few years experts have remained divided over the question of risk. A study by Finnish scientists in 2002 found electromagnetic radiation, which is emitted from mobile phones, affected human brain tissue.
But the UK government-commissioned Stewart report in 2000 concluded there was no evidence of harm associated with using mobile phones. However, the report recommended a precautionary approach and said children should only use mobile phones in emergencies.

Hieronder nog een artikel over zelfde studie en gevaren van mobiel bellen voor kinderen. Bron: Worldhealthnet

Mobile phones tumour risk to young children
By Sam Coates, Nigel Hawkes and Alexandra Blair

CHILDREN under the age of eight should not use mobile phones, parents were advised last night after an authoritative report linked heavy use to ear and brain tumours and concluded that the risks had been underestimated by most scientists. Professor Sir William Stewart, chairman of the National Radiological Protection Board (NRPB), said that evidence of potentially harmful effects had become more persuasive over the past five years.

The news prompted calls for phones to carry health warnings and panic in parts of the industry. One British manufacturer immediately suspended a model aimed at four to eight-year-olds. The number of mobiles in Britain has doubled to 50 million since the first government-sponsored report in 2000. The number of children aged between five and nine using mobiles has increased fivefold in the same period. In his report, Mobile Phones and Health, Sir William said that four studies have caused concern. One ten-year study in Sweden suggests that heavy mobile users are more prone to non-malignant tumours in the ear and brain while a Dutch study had suggested changes in cognitive function. A German study has hinted at an increase in cancer around base stations, while a project supported by the EU had shown evidence of cell damage from fields typical of those of mobile phones. “All of these studies have yet to be replicated and are of varying quality but we can’t dismiss them out of hand,” Sir William said. If there was a health risk — which remained unproven — it would have a greater effect on the young than on older people, he added. For children aged between 8 and 14, parents had to make their own judgments about the risks and benefits. “I can’t believe that for three to eight year-olds they can be readily justified,” he said. David Hart, general secretary of the National Association of Headteachers, called last night for a ban on mobiles in schools. Mobile phone companies reacted furiously, saying that the report fanned public concern without presenting new research. The youth market is highly lucrative because teenagers are more likely to use video downloads and other services. The World Health Organisation is preparing to publish an international report, drawing on hundreds of studies conducted over a decade, which many hope will give a definitive judgment on mobile phone safety. The board’s report says that while there is a lack of hard information of damage to health, the approach should be precautionary. Sir William said: “Just because there are 50 million of them out there doesn’t mean they are absolutely safe.” One school in the North East has begun using mobile scanners to prevent pupils using mobiles in class. “Outside college hours it is up to parents, but in our care if mobiles are found on children, they are confiscated and returned to the parents,” David Riden, vice principal of Tollbar Business and Enterprise College in New Waltham, said. One group that appears to target young users is Richard Branson’s Virgin Mobile, which derives much of its revenue from the 16s-35s market. It denies targeting under 16s but has cornered a large slice of the youth market with cheap voice and text messages.

  • Acoustic neuromas are benign tumours of the acoustic nerve
    A study in Sweden has shown that they are twice as common in mobile phone users
    They were also four times as common on the side of the head where the phone was held
    Acoustic neuromas occur in 100,000 people a year and can cause deafness
    They can be treated by surgery. In most cases the patient’s hearing is saved
    Brain tumours affect about 4,700 new patients a year in Britain
    They are becoming more common — the UK Brain Tumour Society says that incidence has increased by 45 per cent in 30 years
    The causes of primary brain tumours are unknown, so it is hard to identify specific risk factors

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