Synodic lunar phases and suicide: based on 2605 suicides over 23 years, a full moon peak is apparent in premenopausal women from northern Finland

Suicide data for this study were available for the period of March 1988 to June 2011, and involved 2111 male and 494 female victims from the Finnish province of Oulu. Data for lunar phases during that period were categorised into three groups: new moon (75% visible) and other times with values in be...

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Veröffentlicht in:Molecular psychiatry 2021-09, Vol.26 (9), p.5071-5078
Hauptverfasser: Meyer-Rochow, Victor Benno, Hakko, Tapani, Hakko, Helinä, Riipinen, Pirkko, Timonen, Markku
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container_end_page 5078
container_issue 9
container_start_page 5071
container_title Molecular psychiatry
container_volume 26
creator Meyer-Rochow, Victor Benno
Hakko, Tapani
Hakko, Helinä
Riipinen, Pirkko
Timonen, Markku
description Suicide data for this study were available for the period of March 1988 to June 2011, and involved 2111 male and 494 female victims from the Finnish province of Oulu. Data for lunar phases during that period were categorised into three groups: new moon (75% visible) and other times with values in between. Seasonal effects were controlled with definitions for winter (Nov, Dec, Jan), spring (Feb, Mar, Apr), summer (May, June, July), and autumn (Aug, Sep, Oct). Suicide occurrences during different lunar phases were compared with their expected distribution using multinomial tests with all tests being two-tailed. Statistical significance was set at p  
doi_str_mv 10.1038/s41380-020-0768-7
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subjects 631/443
692/699/476/1414
Behavioral Sciences
Biological Psychology
Environmental aspects
Female
Finland
Health aspects
Humans
Male
Medicine
Medicine & Public Health
Menopause
Menstrual cycle
Moon
Nervous system
Neurosciences
Periodicity
Pharmacotherapy
Phases
Psychiatry
Statistical analysis
Statistics
Suicide
Suicides & suicide attempts
Winter
title Synodic lunar phases and suicide: based on 2605 suicides over 23 years, a full moon peak is apparent in premenopausal women from northern Finland
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