Hostname: page-component-848d4c4894-cjp7w Total loading time: 0 Render date: 2024-06-30T08:23:35.787Z Has data issue: false hasContentIssue false

Parasuicide and the lunar cycle

Published online by Cambridge University Press:  09 July 2009

Tim D. Rogers
Affiliation:
Department of Psychological Medicine, Royal Infirmary of Edinburgh
George Masterton*
Affiliation:
Department of Psychological Medicine, Royal Infirmary of Edinburgh
Ralph McGuire
Affiliation:
Department of Psychological Medicine, Royal Infirmary of Edinburgh
*
1Address for correspondence: Dr George Masterton, Department of Psychological Medicine, Royal Infirmary of Edinburgh, 4 Lauriston Place, Edinburgh EH3 9YW.

Synopsis

Admissions to hospital following parasuicide in one city over eighteen years exhibit a cyclical variation apparently synchronized with the lunar quarters. The effect would only account for approximately 0·7 out of the average of 46 parasuicides per 100000 adults per lunar cycle (95% CI 0·6–0·8), and fails to reach statistical significance.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

BMDP Statistical Software (1985). University of California: Los Angeles.Google Scholar
Bradley, D. A., Woodbury, M. A. & Brier, G. W. (1962). Lunar synodical period and widespread precipitation. Science 137, 748749.CrossRefGoogle ScholarPubMed
Brown, F. A., Webb, H. M. & Brett, W. J. (1960). Magnetic response of an organism and its lunar relationships. Biological Bulletin 118, 382392.Google Scholar
Campbell, D. E. & Beets, J. L. (1978). Lunacy and the moon. Psychological Bulletin 85, 11231129.CrossRefGoogle ScholarPubMed
Criss, T. B. & Marcum, J. (1981). A lunar effect on fertility: systematic variation of 29·53 days in New York City birth record. Social Biology 28, 7580.Google Scholar
Darwin, C. (1871). The Descent of Man. Murray: London.Google Scholar
Enright, J. T. (1965). The search for rhythmicity in biological time-series. Journal of Theoretical Biology 8, 426468.Google Scholar
Fox, H. M. (1932). Lunar periodicity in reproduction. Nature 130, 23.CrossRefGoogle Scholar
Grau, E. G., Dickhoff, W. D., Nishioka, R. S., Bern, H. A. & Folmar, L. C. (1981). Lunar phasing of the thyroxine surge preparatory to seaward migration of salmonid fish. Science 211, 607609.Google Scholar
Howarth, E. & Hoffman, M. S. (1984). A multidimensional approach to the relationship between mood and weather. British Journal of Psychology 75, 1523.CrossRefGoogle Scholar
Jacobsen, D., Frederichsen, P. S., Knutsen, K. M., Sorum, Y., Talseth, T. & Odegaard, O. R. (1986). Self-poisoning and moon phases in Oslo. Human Toxicology 5, 5152.CrossRefGoogle Scholar
Jongbloet, P. H. (1983). The evolutionary origin of the human menstrual cycle. Developmental Medicine and Child Neurology 25, 527531.CrossRefGoogle Scholar
Kennedy, P. & Kreitman, N. (1973). An epidemiological survey of parasuicide. British Journal of Psychiatry 123, 2334.CrossRefGoogle ScholarPubMed
Kreitman, N. (1977). Parasuicide. John Wiley and Sons: London.Google Scholar
Kreitman, N. & Casey, P. (1988). Repetition of parasuicide: an epidemiological and clinical study. British Journal of Psychiatry 153, 792800.Google Scholar
Laycock, T. (1843). On lunar influence. Lancet ii, 438444.CrossRefGoogle Scholar
Leaton, B. R., Malin, S. R. & Finch, H. F. (1962). The solar and luni-solar variation of the geomagnetic field at Greenwich and Abinger 1916–57. Royal Observatory Bulletin 63, 273318.Google Scholar
Lieber, A. L. (1978). Human aggression and the lunar synodic cycle. Journal of Clinical Psychiatry 39, 385392.Google Scholar
Lieber, A. L. & Sherin, C. R. (1972). Homicides and the lunar cycle. American Journal of Psychiatry 129, 6974.Google Scholar
Miles, L. E. M., Raynal, D. M. & Wilson, M. A. (1977). Blind man living in normal society has circadian rhythms of 24·9 hours. Science 198, 421423.CrossRefGoogle ScholarPubMed
Ossenkamp, K. P. & Ossenkamp, M. D. (1973). Self-inflicted injuries and the lunar cycle. Journal of Interdisciplinary Cycle Research 4, 337348.Google Scholar
Oswald, I., Golland, I. M. & Adam, K. (1981). Poisonings beneath the Scottish moon. British Medical Journal 282, 739.CrossRefGoogle Scholar
Platt, S., Hawton, K., Kreitman, N., Fagg, J. & Foster, J. (1988). Recent clinical and epidemiological trends in parasuicide in Edinburgh and Oxford: a tale of two cities. Psychological Medicine 18, 405418.Google Scholar
Rotton, J. & Kelly, I. W. (1985). Much ado about the full moon: a meta-analysis of lunar-lunacy research. Psychological Bulletin 97, 286306.Google Scholar
Thakur, C. P., Sharma, R. N. & Akhtar, H. S. (1980). Full moon and poisoning. British Medical Journal 281, 16841686.Google Scholar