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Evidence for a genetic etiology to ejaculatory dysfunction

International Journal of Impotence Research volume 21, pages 62–67 (2009)Cite this article

Abstract

A number of theoretical approaches to understanding the etiology of ejaculatory dysfunction have been proposed, but no study has yet found conclusive evidence that premature (PE) or delayed (DE) ejaculation is under genetic control. We conducted twin model fitting analyses on different indicator variables of ejaculatory function on a population-based sample of 3946 twins and their siblings (age 18–48; mean=29.9 years) to investigate genetic, shared environmental and unique environmental effects on PE and DE. A significant moderate genetic effect (28%) was found for PE. No clear-cut familial effect could be detected for DE. Significant associations between ejaculatory function and age were detected, but effects of age were generally very weak. The findings from the present study provide useful information regarding the etiology and understanding of ejaculatory dysfunction.

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Acknowledgements

This research was financed by grant no. 210298 from the Academy of Finland and a Centre of Excellence Grant from the Stiftelsen för Åbo Akademi Foundation.

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Authors and Affiliations

  1. Department of Psychology, Center of Excellence in Behavior Genetics, Åbo Akademi University, Turku, Finland

    P Jern, P Santtila, A Johansson, M Varjonen, K Witting, B von der Pahlen & N K Sandnabba

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  1. P Jern
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  2. P Santtila
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  3. A Johansson
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  4. M Varjonen
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  5. K Witting
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  6. B von der Pahlen
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  7. N K Sandnabba
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Correspondence to P Jern.

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Jern, P., Santtila, P., Johansson, A. et al. Evidence for a genetic etiology to ejaculatory dysfunction. Int J Impot Res 21, 62–67 (2009). https://doi.org/10.1038/ijir.2008.61

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