[Mobile phone use as a risk factor for affection of the central nerve system--secondary publication].

In a large nationwide cohort study including 420,095 persons whose first mobile phone subscription was between 1982 and 1995, who were followed through 2003 for hospital contacts for a diagnosis of a central nervous system disease, we observed 10-20% more hospital contacts than expected for migraine and vertigo and 30-40% less hospital contacts than expected for dementia (Alzheimer's disease, vascular and other dementia), Parkinson's disease and epilepsy among men. No associations were seen for amyotrophic lateral sclerosis, multiple sclerosis or epilepsy in women.