Mobile phone sex date

Posted by / 17-Sep-2016 13:33

Mobile phone sex date

Since 1 April 1968, all Danish residents have been registered in the central population register.

At birth they are assigned a unique personal identification number that is used in all national registers, ensuring accurate linkage of information among these registers.9 This system enables researchers to conduct purely register based cohort studies for exposure data available from respective registries, as the follow-up of vital status, migration, and many health outcomes, in particular cancer, can be done by computerised linkage on an individual level with an exact calculation of person years at risk.

There was no indication of dose-response relation either by years since first subscription for a mobile phone or by anatomical location of the tumour—that is, in regions of the brain closest to where the handset is usually held to the head.

Conclusions In this update of a large nationwide cohort study of mobile phone use, there were no increased risks of tumours of the central nervous system, providing little evidence for a causal association.

The CANULI cohort is therefore a nationwide cohort of all Danes aged 30 or older and born after 1925 in Denmark.

Because of the eligibility criteria of CANULI, not all original members of the mobile phone study were part of CANULI and therefore the original sample size became somewhat smaller.

Longer follow-up increased the numbers of person years for subscribers, particularly in long term subscribers (≥10 years), in whom the total of person years under risk increased from 170 000 to 1.2 million.Sex specific incidence rate ratios estimated with log linear Poisson regression models adjusted for age, calendar period, education, and disposable income.Results 358 403 subscription holders accrued 3.8 million person years.The number of mobile phone users is constantly increasing with more than five billion subscriptions worldwide in 2010.1 The widespread use of mobile phones has led to concerns regarding potential adverse health effects, particularly tumours of the central nervous system, of which the brain is the part most exposed to the radio frequency electromagnetic fields emitted by an operating mobile phone held to the ear.So far, the mechanism of potential non-thermal interaction between radio frequency electromagnetic fields and living systems is unknown.2 The results of the Interphone study, the largest international case-control study on this topic, generally suggest no increased risk of glioma or meningioma.3 For glioma, however, an increased risk (odds ratio 1.40, 95% confidence interval 1.03 to 1.89) was observed in 364 people with more than 1640 hours of cumulative use.

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Objective To investigate the risk of tumours in the central nervous system among Danish mobile phone subscribers. Main outcome measures Risk of tumours of the central nervous system, identified from the complete Danish Cancer Register.

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