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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
World Health Organization reference values for human semen characteristics
Human Reproduction Update, Volume 16, No. 3, Article dmp048, Year 2009
Notification
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Description
Background: Semen quality is taken as a surrogate measure of male fecundity in clinical andrology, male fertility, reproductive toxicology, epidemiology and pregnancy risk assessments. Reference intervals for values of semen parameters from a fertile population could provide data from which prognosis of fertility or diagnosis of infertility can be extrapolated.methods: Semen samples from over 4500 men in 14 countries on four continents were obtained from retrospective and prospective analyses on fertile men, men of unknown fertility status and men selected as normozoospermic. Men whose partners had a time-to-pregnancy (TTP) of ≤12 months were chosen as individuals to provide reference distributions for semen parameters. Distributions were also generated for a population assumed to represent the general population. results: The following one-sided lower reference limits, the fifth centiles (with 95th percent confidence intervals), were generated from men whose partners had TTP ≤ 12 months: semen volume, 1.5 ml (1.4-1.7); total sperm number, 39 million per ejaculate (33-46); sperm concentration, 15 million per ml (12-16); vitality, 58% live (55-63); progressive motility, 32% (31-34); total (progressive + non-progressive) motility, 40% (38-42); morphologically normal forms, 4.0% (3.0-4.0). Semen quality of the reference population was superior to that of the men from the general population and normozoospermic men. conclusions: The data represent sound reference distributions of semen characteristics of fertile men in a number of countries. They provide an appropriate tool in conjunction with clinical data to evaluate a patient's semen quality and prospects for fertility. © World Health Organization [2009]. All rights reserved.
Authors & Co-Authors
Cooper, Trevor G.
Germany, Munster
Medizinische Fakultät Münster
Noonan, Elizabeth A.
United States, Seattle
Fred Hutchinson Cancer Research Center
von Eckardstein, Sigrid
United States, Washington, D.c.
The World Bank, Usa
Auger, Jacques
France, Paris
Service D'histologie-embryologie
Baker, Hugh William Gordon
Australia, Melbourne
University of Melbourne
Behre, Hermann M.
Germany, Halle
Universitätsklinikum Halle Und Medizinische Fakultät
Haugen, Trine B.
Norway, Oslo
Oslomet – Storbyuniversitetet
Kruger, Theunis Frans
South Africa, Stellenbosch
Stellenbosch University
Wang, Christina
United States, Torrance
The Lundquist Institute
Mbizvo, Michael Takura
United States, Washington, D.c.
The World Bank, Usa
Vogelsong, Kirsten M.
United States, Washington, D.c.
The World Bank, Usa
Statistics
Citations: 2,419
Authors: 11
Affiliations: 9
Identifiers
Doi:
10.1093/humupd/dmp048
ISSN:
13554786
e-ISSN:
14602369
Research Areas
Health System And Policy
Maternal And Child Health
Sexual And Reproductive Health
Study Design
Cross Sectional Study
Cohort Study
Participants Gender
Male