TY - JOUR
T1 - Is there really a decrease in sperm parameters among healthy young men? A survey of sperm donations during 15 years
AU - Benshushan, Abraham
AU - Shoshani, Orly
AU - Paltiel, Ora
AU - Schenker, Joseph G.
AU - Lewin, Aby
PY - 1997/7
Y1 - 1997/7
N2 - Purpose: Our purpose was to measure changes in semen quality and quantity in young healthy sperm donors in Jerusalem over time. Methods: A retrospective analysis of semen parameters over 15 years using linear regression analysis, in a single sperm bank in a tertiary university center. Study population consisted of 188 young, healthy medical students, aged 20 to 30 years, who donated sperm samples for Artificial insemination between 1980 and 1995. Results: There were no statistically significant changes in semen concentration and motility during the study period. The mean semen volume increased by 0.1 ml (5.1%) per year (P < 0.0001), with a concomitant mean rise of 5.8 x 106 (7. 7%) per year in total motile sperm count. The percentage normal morphology decreased by a mean of 1.04% per year during the entire period (P < 0.0001). Conclusions: During the past 15 years, there has been an increase in total motile sperm count, secondary to an increase in semen volume, and a decline in normal morphology that are independent of the age and the duration of abstinence in fertile men.
AB - Purpose: Our purpose was to measure changes in semen quality and quantity in young healthy sperm donors in Jerusalem over time. Methods: A retrospective analysis of semen parameters over 15 years using linear regression analysis, in a single sperm bank in a tertiary university center. Study population consisted of 188 young, healthy medical students, aged 20 to 30 years, who donated sperm samples for Artificial insemination between 1980 and 1995. Results: There were no statistically significant changes in semen concentration and motility during the study period. The mean semen volume increased by 0.1 ml (5.1%) per year (P < 0.0001), with a concomitant mean rise of 5.8 x 106 (7. 7%) per year in total motile sperm count. The percentage normal morphology decreased by a mean of 1.04% per year during the entire period (P < 0.0001). Conclusions: During the past 15 years, there has been an increase in total motile sperm count, secondary to an increase in semen volume, and a decline in normal morphology that are independent of the age and the duration of abstinence in fertile men.
KW - Geographic and time trend
KW - Semen concentration
KW - Semen morphology
KW - Sperm volume
UR - http://www.scopus.com/inward/record.url?scp=0030811042&partnerID=8YFLogxK
U2 - 10.1007/BF02765840
DO - 10.1007/BF02765840
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C2 - 9226515
AN - SCOPUS:0030811042
SN - 1058-0468
VL - 14
SP - 347
EP - 353
JO - Journal of Assisted Reproduction and Genetics
JF - Journal of Assisted Reproduction and Genetics
IS - 6
ER -