Epi News Briefs Large Danish Cohort Study Of Mobile Phone Use Finds No Association With Brain Cancer Case Closed? Not Yet Say Researchers

摘要

It is impressive to read about the type of epidemiological studies which the Danes can carry out. The latest example is a nationwide cohort study of over 350,000 residents born after 1925 and divided into subscribers and non-subscribers of cell phones. The cohort accrued almost 4 million person years of followup in the period 1990-2007. The risk was close to 1.0 for both men and women and no there was no evidence of a dose response relationship by duration of exposure or by anatomical location of the tumor nearby where the handset is usually held.