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Sperm counts in Asian men: reviewing the trend of past 50 years


Sengupta, Pallav and Dutta, Sulagna and Tusimin, Maiza and Irez, Tulay and Kulak, Elzbieta Krajewska (2018) Sperm counts in Asian men: reviewing the trend of past 50 years. Asian Pacific Journal of Reproduction, 7 (2). 87 - 92. ISSN 2305-0500; ESSN: 2305-0519


Objective: To reveal the trend in alterations of sperm counts in Asian men over the past 50 years. Methods: This study reviewed all the published reports to unveil the specific pattern of alterations of sperm concentrations in Asian men from 1965 till 2015. The time-related changes in sperm concentration were studied using linear regression analyses. Results: The present study elucidated the trend using the reports from Carlsen et al (1965-1990) and non-Carlsen studies published until 2015, on fertile Asian men. In the reports of Carlsen et al., no overall declining trend in Asian men (r = 0.509, P = 0.760) was observed during this tenure, but non- Carsen reports showed a significant time-dependent decline of sperm concentration (r = -0.754, P = 0.005) in Asian men. This present review also showed a mild time-dependant decline in sperm concentration (-0.44×106/mL/year, 95% CI: -0.65 to -0.23; r = -0.473, P = 0.040) which accounted for an overall 22.17% decrease in past 50 years. Conclusions: This study brings to the forefront that sperm concentration among Asian men follows a mild declining trend over the period of 50 years, and further studies addressing the causes of this decline are required.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Medicine and Health Science
DOI Number: https://doi.org/10.4103/2305-0500.228018
Publisher: Wolters Kluwer Medknow Publications
Keywords: Asian men; Semen quality; Sperm concentration; Sperm count
Depositing User: Ms. Nida Hidayati Ghazali
Date Deposited: 29 Apr 2020 16:22
Last Modified: 29 Apr 2020 16:22
Altmetrics: https://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.4103/2305-0500.228018
URI: http://psasir.upm.edu.my/id/eprint/73949
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