Background and Objectives: The proximity of wind turbines to residential areas has been associated with a higher level of complaints compared to the general population. The study objective was to search the literature investigating whether an association between wind turbines and human distress exists.
Methods: A systematic search of the following databases (EMBASE, PubMed, OvidMedline, PsycINFO, The Cochrane Library, SIGLE, and Scirus) and screening for duplication led to the identification of 154 studies. Abstract and full article reviews of these studies led to the identification of 18 studies that were eligible for inclusion as they examined the association of wind turbines and human distress published in peer-review journals in English between 2003-2013. Outcome measures including First Author, Year of Publication, Journal Name, Country of Study, Study Design, Sample Size, Response Rate, Level of Evidence, Level of Potential Bias, and Outcome Measures of Study were captured for all studies. After data extraction, each study was analyzed to identify the two primary outcomes: Quality of Study and Conclusion of Study Effect.
Results: All peer-reviewed studies captured in our review found an association between wind turbines and human distress. These studies had levels of evidence of four and five. Two studies showed a dose-response relationship between distance from wind turbines and distress, and none of them concluded no association.
Conclusions: In this review, we have demonstrated the presence of reasonable evidence (Level Four and Five) that an association exists between wind turbines and distress in humans. The existence of a dose-response relationship (between distance from wind turbines and distress) and the consistency of association across studies found in the scientific literature argues for the credibility of this association. Future research in this area is warranted as to whether or not a causal relationship exists.
Published: May 23, 2014
Cureus 6(5): e183. doi:10.7759/cureus.183 
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