Long-term mobile phone use and acoustic neuroma

摘要

The article by Pettersson et al on use of wireless phones and the risk of acoustic neuroma is a retrospective case-control study with cases diagnosed between 2002 and 1 September 2007, with interviews starting in October 2007. A delay of up to 5 years or even more for exposure assessment may aggravate the problem of recall.Regular use of mobile phones yielded an odds ratio of 1.18 (95% confidence interval = 0.88-1.59) and cordless phone, 1.41 (1.07-1.86). Frequency of use "Never or rarely" was the reference category, separately for mobile and cordless phones. Certainly some but not all subjects used both phone types.