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Effects of alternative styles of risk information on EMF risk perception
Authors:Jesper Bo Nielsen  Arthur Elstein  Dorte Gyrd‐Hansen  Helle Wallach Kildemoes  Ivar Sønbø Kristiansen  Henrik Støvring
Institution:1. Institute of Public Health, University of Southern Denmark, Odense, Denmark;2. Department of Medical Education, College of Medicine, University of Illinois at Chicago, Chicago, Illinois;3. Danish Institute for Health Services Research, Copenhagen, Denmark;4. Research Unit for General Practice, University of Southern Denmark, Odense, Denmark;5. Institute of Health Management and Health Economics, University of Oslo, Oslo, Norway
Abstract:Risk scenarios characterized by exposures to new technologies with unknown health effects, together with limited appreciation of benefits pose a challenge to risk communication. The present report illustrates this situation through a study of the perceived risk from mobile phones and mobile masts in residential areas. Good information should objectively convey the current state of knowledge. The research question is then how to inform lay people so that they trust and understand the information. We used an Internet‐based survey with 1687 Danish participants randomized to three types of information about radiation from mobile phones and masts. The objective was to study whether different types of information were rated as equally useful, informative, comprehensible, and trustworthy. Moreover, an important issue was whether information would influence risk perception and intended behavior. The conclusion is that lay people rate information about risks associated with a new and largely unknown technology more useful and trustworthy when provided with brief statements about how to handle the risk, rather than more lengthy technical information about why the technology may or may not entail health hazards. Further, the results demonstrate that information may increase concern among a large proportion of the population, and that discrepancies exist between expressed concern and intended behavior. Bioelectromagnetics 31:504–512, 2010. © 2010 Wiley‐Liss, Inc.
Keywords:risk communication  risk perception  information strategy  mobile phones  randomized study  Internet survey
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