Comparative Study
doi: 10.3109/01485018409161159.
Depressed semen quality: a study over two decades
- PMID: 6476963
- DOI: 10.3109/01485018409161159
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Comparative Study
Depressed semen quality: a study over two decades
Arch Androl.
1984.
Abstract
One hundred-eighty-five consecutive spermiograms from men of infertile couples in 1980-1981 were compared with as many spermiograms of age-matched controls from 1960-1961. The semen parameters analyzed were: volume, sperm density, and sperm morphology. The following significant changes were noted over the time period: the mean seminal volume decreased from 3.79 ml to 3.42 ml (p less than 0.05), the mean sperm count decreased from 125.4 mill/ml to 78.0 mill/ml (p less than 0.001) and the proportion of double sperm heads increased from 0.52% to 1.51% (p less than 0.001). Further analysis showed even more pronounced changes in these parameters for men living in the urban area compared those from the surrounding rural areas.
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