A descreptive cross-sectional study was conducted in Sweden to investigate whether serum S100B protein levels were higher among frequent users than non-frequent users of mobile phones and DECT phones.
Serum S100B protein was used as a putative marker of blood-brain barrier dysfunction. The participants of the study were asked to answer a questionnaire and to leave a blood sample. The lowest quartile of overall use of mobile phones and DECT phones was taken as reference group including three non-users.
|Group 1||mobile phone and DECT phone use|
|Group 2||mobile phone use|
|Group 3||analog mobile phone use|
|Group 4||digital mobile phone use|
|Group 5||UMTS mobile phone use|
|Group 6||DECT phone use|
|Participation rate||31 %|
All but three participants reported that they used a wireless phone. No association between higher serum S100B protein levels was observed among frequent users than non-frequent users of mobile phones and DECT phones.