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Volume 20, Issue 4 (July 2018) 20, 379–384; 10.4103/aja.aja_80_17
Decline in semen concentration of healthy Chinese adults: evidence from 9357 participants from 2010 to 2015
Hong-Fang Yuan1, Huang-Fang Shangguan2, Yi Zheng3, Tian-Qing Meng4,5, Cheng-Liang Xiong1,4,5, Huang-Tao Guan1,4,5
1 Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
2 College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
3 Department of Venereology, Wuhan Institute of Dermatology and Venereology, Wuhan 430031, China
4 Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
5 Hubei Province Human Sperm Bank, Wuhan 430030, China
Correspondence: Dr. HT Guan (guanhtao@163.com)
27-Feb-2018
| Abstract |
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The present study aims to analyze sperm concentration trends among young and healthy Chinese adults in Wuhan, Central China, from 2010 to 2015. Semen analysis data from 9357 participants were collected and analyzed using a general linear model and the Cochran–Armitage trend test. A significant decline was observed in sperm concentration (β [standard deviation]: −1.53 [0.16]; P < 0.001). In addition, a decline in sperm density was observed by stratifying student versus nonstudent sperm donors and by analyzing the year of birth or birth year cohort of the participants. Furthermore, the percentage of participants with sperm densities of over 40 × 106 ml−1 significantly decreased with year. Notably, a dramatic decline in sperm density was recorded over the first 5 years of study. This research reported a decline in sperm concentration among young adults in Wuhan, Central China, in 2010–2015.
Keywords: healthy men; semen concentration; sperm donors; temporal trends
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