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Do Lunar Phases Affect Conception Rates in Assisted Reproduction?

  • Assisted Reproduction
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Abstract

Objectives: To assess the effect of the phases of the moon on pregnancy rates in humans following in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) treatment.

Design: Retrospective, observational study.

Setting: Reproductive Medicine Unit, Liverpool Women’s Hospital.

Patient: Complete data for all women undergoing assisted conception procedures over a period of 13 years (1995–2002).

Intervention: Assisted conception procedures-IVF and ICSI.

Main outcome measures: Biochemical pregnancy that is positive pregnancy test result following embryo transfer.

Results: There was no significant effect of any lunar phase on the incidence of biochemical pregnancy (p-value 0.71). Age of the woman significantly affects the chances of pregnancy, (OR 0.95, 95% CI 0.91, 0.998, and p-value 0.04). The chances of pregnancy rises significantly with increase in the number of embryos replaced from 1 to 2 (OR 2.97, CI 1.36, 6.48, and p-value 0.01).

Conclusion: Pregnancy rates in humans, following assisted conception, appears to be independent of the effect of the lunar phase during which embryo transfer is carried out.

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REFERENCES

  1. Osborn R: Biorhythms and reproduction: nature’s time clocks. Available at: http://homepages.ius.edu./PGALVIN/time/ osborn/bioclocks.htm

  2. Cochran RC, Zabludoff SD, Paynter KT, DiMichele L, Palmer RE: Serum hormone levels associated with spawning activity in the mummichog, Fundulus heteroclitus. Gen Comp Encocrinology 1988;70:345–354

    Google Scholar 

  3. Fraser AF: Proceedings of the First World Congress Ethology Applied to Zoonotics 1978;1:507

    Google Scholar 

  4. Peters AR, Ball PJH: Reproduction in Cattle. Wellington, New Zealand, Butterworths, 1987, p 40

    Google Scholar 

  5. Law SP: The regulation of menstrual cycle and its relationship to the moon. Acta Obset Gyn Scan 1986;65(1):45–48

    Google Scholar 

  6. Knight C: Blood Relations, Menstruation and the Origins of Culture. New Haven, CT, Yale University Press, 1991, pp 244–255

    Google Scholar 

  7. Ptolemy C: Tetrabiblos, 6th ed., Loeb Classical Library, Harvard and London, p 29

  8. Kollerstrom N, Power C: The influence of the lunar cycle on fertility of two thoroughbred studfarms. Equine Vet J 2000;32(1):75–77

    Google Scholar 

  9. Guillon P, Guillon D, Lansac J, Soutoul JH, Bertrand P, Hornecker JP: Births, fertility, rhythms and lunar cycle. A statistical study of 5,927,978 births. J Gynecol Obstet Biol Reprod (Paris) 1986;15(3):265–271

    Google Scholar 

  10. Ghiandoni G, Secli R, Rocchi MB, Ugolini G: The incidence of lunar position in the distribution of deliveries. A statistical analysis. Minerva Ginecol 1997;49(3):91–94

    Google Scholar 

  11. Weigert M, Feichtinger W, Kulin S, Kaali SG, Dorau P, Bauer P: Seasonal influences on in vitro fertilisation and embryo transfers. J Assist Reprod Genet 2001 Nov; 18(11):598–602

    Google Scholar 

  12. Weigert M, Kaali SG, Kulin S, Feichtinger W: Do lunar cycles influence in vitro fertilization results? J Assist Reprod Genet 2002 Nov;19(11):539–540

    Google Scholar 

  13. Phases of the Moon: US Naval Observatory. Astronomical Applications Department. Available at: http://aa.usno.navy. mil/data/docs/MoonPhase.html

  14. Subramaniam A, Devarajan KP, Velyutham N, Mohanan M: Effects of lunar phases on variability of inseminations in cattle. Aust Vet J 1991 Feb;68(2):71–72

    Google Scholar 

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Correspondence to Sangeeta Das.

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Das, S., Dodd, S., Lewis-Jones, D.I. et al. Do Lunar Phases Affect Conception Rates in Assisted Reproduction?. J Assist Reprod Genet 22, 15–18 (2005). https://doi.org/10.1007/s10815-005-0815-y

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  • DOI: https://doi.org/10.1007/s10815-005-0815-y

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