Epidemiological Study (cross-sectional study)
Use of wireless phones and serum beta-trace protein in randomly recruited persons aged 18-65 years: a cross-sectional study. epidemiol. By: Söderqvist F, Carlberg M, Zetterberg H, Hardell L
Published in: Electromagn Biol Med 2012; 31 (4): 416 - 424 ( PubMed Entry , Journal web site )
Aim of study (according to author)
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).
Endpoint/type of risk estimation
groups of exposure:
- mobile phone, cordless phone
- type of exposure: personal
- assessment by questionnaire (use of mobile phones and DECT phones, year of first use, average daily use, use on the day of blood sampling)
|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 |
Study group: men and women, aged from 18 to 65 years
Observation period: 2007
Study location: Sweden (Örebro)
Further parameters acquired by questionnaire (work history, demographic data, health- and lifestyle-related questions such as smoking, physical exercise, various exposures, and trauma)
Remark: 18 -30 year age group: 87 additional participants of two other studies
|Study size || |
|number total ||1,000|
|number participating ||314|
|rate of participating ||31%|
Statistical analysis using linear regression
Results/conclusion (according to author)
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).
(Study character: epidemiological study, cross-sectional study)
Study funded by
- Cancer och Allergifonden, Sweden
- Cancerhjälpen, Sweden
- Istituto Nazionale Per L'Assicurazione Contro Gli Infortuni Sul Lavoro (INAIL; Italian Workers' Compensation Authority), Italy
- Örebro University Hospital Cancer Fund, Sweden
Glossary: beta-trace protein, blood, cordless phone, cross-sectional study, DECT, epidemiological, exposures, health, human, linear, mobile phones, physical, population, questionnaire, serum, significant, statistically, trauma
- Hardell L et al. (2010): Exposure to wireless phone emissions and serum beta-trace protein.
- Söderqvist F et al. (2009): Use of wireless telephones and serum S100B levels: a descriptive...
- Söderqvist F et al. (2009): Exposure to an 890-MHz mobile phone-like signal and serum levels of S100B and...
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