A cross-sectional study was conducted in Sweden to investigate whether use of mobile phones and DECT phones is associated with lower concentrations of human serum beta-trace protein.
The study is based on the same study population as in Söderqvist et al. (2009). Additionally, data for the 18 -30 year age group were combined with data from two previously studies by Hardell et al. (2010) and Söderqvist et al. (submitted).
| Group | Description |
|---|---|
| Group 1 | cumulative use of mobile phone and DECT phone in hours |
| Group 2 | cumulative use of mobile phone in hours |
| Group 3 | cumulative use of DECT phone in hours |
| Group 4 | years since first use of mobile phone and DECT phone |
| Group 5 | years since first use of mobile phone |
| Group 6 | years since first use of DECT phone |
| Type | Value |
|---|---|
| Total | 1,000 |
| Participants | 314 |
| Participation rate | 31 % |
18 -30 year age group: 87 additional participants of two other studies
Overall, no statistically significant association between use of mobile phones as well as DECT phones and the serum concentration of beta-trace protein was found, neither with respect to short-term nor long-term use. Age-specific analyses, however, yielded negative associations for long-term use (group 1 and 3) and beta-trace protein in the youngest age group (18-30 years).
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