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Compr Psychiatry. 2009 Nov-Dec;50(6):573-7. doi: 10.1016/j.comppsych.2009.01.002. Epub 2009 Mar 10.

Relationship between lunar phases and serious crimes of battery: a population-based study.

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  • 1Department of Psychiatry and Psychotherapy, University Hospital of Erlangen, Friedrich-Alexander-University of Erlangen-Nuremberg, D-91054 Erlangen, Germany. teresa.biermann@uk-erlangen.de

Abstract

OBJECTIVE:

The hypothesis of a lunar influence on human abnormal behavior is still widespread, although research has led to conflicting findings. Therefore, a population-based study to assess the influence of lunar phases on violent crimes was conducted.

METHODS:

The study included all serious crimes of battery (aggravated assaults) committed in Middle Franconia (Bavaria, Germany) between 1999 and 2005 (n = 23 142). Data were analyzed regarding lunar phase, sex, and place of crime scene (outdoor vs indoor).

RESULTS:

No significant associations between full, absent, and the moon's interphases and serious crimes of battery could be detected. Furthermore, a Fourier analysis was conducted that failed to produce an association between violence and the moon's phases.

DISCUSSION:

Several possible explanations for the presented results are discussed including biological and social mechanisms.

CONCLUSIONS:

The present study fails to find a significant association between lunar phases and crimes of battery.

PMID:
19840597
[PubMed - indexed for MEDLINE]
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