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Semen quality analysis of military personnel from six geographical areas of the People’s Republic of China

Zou, Z.K., Hu, H.X., Song, M.S., Shen, Y.L., Guo, Xi.H., McElreavey, K., Bittles, A.H. and Wang, W. (2011) Semen quality analysis of military personnel from six geographical areas of the People’s Republic of China. Fertility and Sterility, 95 (6). pp. 2018-2023.

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    Link to Published Version: http://dx.doi.org/10.1016/j.fertnstert.2011.02.052
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    Abstract

    Objective: To examine the determinants of semen quality in a large sample of military personnel from different geographical areas of the People's Republic of China.
    Design: Cross-sectional study.

    Setting: Six representative geographical regions in China: Beihai, Lhasa, Germu, Xinzhou, Huhehaote, and Mohe.
    Patient(s): 1,194 army personnel aged 18 to 35 years at the time of their inclusion in the study, sampled between 2007 and 2009.

    Intervention(s): None.

    Main Outcome Measure(s): Semen volume (in milliliters), sperm concentration (in millions per milliliter), percentage of motile spermatozoa, total sperm count (in millions), and relative risk of subfertility.

    Result(s): The median values were 3.0 mL for semen volume, 39.4 x 10(6) per mL for sperm concentration, 120.1 x 10(6) for total sperm count, 15.8% for sperm rapid progressive motility, 30.1% for sperm progressive motility, and 43.9% for total motility. We found that 88.3% of the servicemen had at least one semen parameter below normal values according to World Health Organization (WHO) recommendations (1999), and 62.5% according to WHO recommendations (2010). Season, average altitude, and duration of sexual abstinence all were statistically significantly associated with semen quality.

    Conclusion(s): The men had markedly lower mean sperm concentrations, sperm counts, and sperm motility compared with WHO recommendations. Possible contributory factors included diet, lifestyle, climate, and altitude.

    Publication Type: Journal Article
    Murdoch Affiliation: Centre for Comparative Genomics
    Publisher: Elsevier
    Copyright: 2011 American Society for Reproductive Medicine
    URI: http://researchrepository.murdoch.edu.au/id/eprint/4329
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