What is the association between cell phone use and glioblastoma?
['Decreased survival of glioma cases with long-term and high cumulative use of wireless phones was found. ', 'There was no significant association between glioma and alcohol consumption, smoking and mobile phone use.', 'Regular cell phone use was not associated with an increased risk of neuroma (OR=0,92; 95% confidence interval=[0.53-1.59]), meningioma (OR=0,74; 95% confidence interval=[0.43-1.28]) or glioma (OR=1.15; 95% confidence interval=[0.65-2.05]). Although these results are not statistically significant, a general tendency was observed for an increased risk of glioma among the heaviest users: long-term users, heavy users, users with the largest numbers of telephones. ', 'No significant increased risk for glioma, meningioma or neuroma was observed among cell phone users participating in Interphone. ', ' Our results, suggesting the possibility of an increased risk among the heaviest users, therefore need to be verified in the international INTERPHONE analyses.', 'The risk for ipsilateral use was significantly increased for astrocytoma for all studied phone types, analogue phones OR=1.8,95% CI=1.1-3.2, digital phones OR=1.8, 95% CI=1.1-2.8, cordless phones OR=1.8, 95% CI=1.1-2.9.', 'For astrocytoma and ipsilateral use the trend was for analogue phones OR=1.10, 95% CI=1.02-1.19, digital phones OR=1.11, 95% CI=1.01-1.22, and cordless phones OR=1.09, 95% CI=1.01-1.19. There was a tendency of a shorter tumour induction period for ipsilateral exposure to microwaves than for contralateral, which may indicate a tumour promotor effect.', 'Case reports of brain tumours in users initiated this case-control study on brain tumours and use of cellular telephones.', 'Increased risk was found only for use of the NMT system. ', 'This increased HR was based on results for astrocytoma WHO grade IV (glioblastoma multiforme).', 'Some studies show increasing incidence of brain tumours whereas other studies do not.', 'The meta-analysis gave for glioma in the most exposed part of the brain, the temporal lobe, odds ratio (OR)=1.71, 95% confidence interval (CI)=1.04-2.81 in the ≥10 years (>10 years in the Hardell group) latency group. Ipsilateral mobile phone use ≥1640h in total gave OR=2.29, 95% CI=1.56-3.37. ', 'After 1983 and during the period with increasing prevalence of mobile phone users, the incidence has remained relatively stable for both men and women.']
['The association between cell phone use and incident glioblastoma remains unclear. Some studies have reported that cell phone use was associated with incident glioblastoma, and with reduced survival of patients diagnosed with glioblastoma. However, other studies have repeatedly replicated to find an association between cell phone use and glioblastoma.']
[]