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The semen of fertile men. II. Semen characteristics of 100 fertile men.
Fertil Steril 1975; 26(11):1048-56FS

Abstract

From a population of men applying for voluntary sterilization, 100 consecutive cases were selected according to the following criteria: (1) each man had fathered at least two children; (2) at the time of the request for a vasectomy the man's wife was pregnant; and (3) a complete prevasectomy semen analysis, including sperm morphology, was available. The usual parameters of human semen evaluation are reported: the mean volume of the ejaculates was 3.3 ml +/- 0.84 SD (range, 0.5 to 11 ml); the mean sperm density was 81 million/ml +/- 57 SD (range, 4 to 318); while the geometric mean, which according to the sample distribution is more representative, was 68. The mean percentage of motile sperm was 63% +/- 16 SD (range, 10 to 95%); the grade of forward progression was 3 +/- 0.55 SD (range, 2 to 4); and for sperm morphology the mean number of sperm with oval heads was 75% +/- 6 SD (range, 21 to 90%). Statistical comparison of these findings with those of our previous study of the semen of 1300 fertile men revealed complete agreement; minor statistical differences, on single parameters, with three similar studies are indicated. A positive relationship between the different variables, sperm density and sperm motility (in percentage of motile sperm and degree of forward motion), as well as between the two variables of sperm motility and sperm morphology to the other variables was confirmed.

Authors

No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

1183628

Citation

Sobrero, A J., and N E. Rehan. "The Semen of Fertile Men. II. Semen Characteristics of 100 Fertile Men." Fertility and Sterility, vol. 26, no. 11, 1975, pp. 1048-56.
Sobrero AJ, Rehan NE. The semen of fertile men. II. Semen characteristics of 100 fertile men. Fertil Steril. 1975;26(11):1048-56.
Sobrero, A. J., & Rehan, N. E. (1975). The semen of fertile men. II. Semen characteristics of 100 fertile men. Fertility and Sterility, 26(11), pp. 1048-56.
Sobrero AJ, Rehan NE. The Semen of Fertile Men. II. Semen Characteristics of 100 Fertile Men. Fertil Steril. 1975;26(11):1048-56. PubMed PMID: 1183628.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The semen of fertile men. II. Semen characteristics of 100 fertile men. AU - Sobrero,A J, AU - Rehan,N E, PY - 1975/11/1/pubmed PY - 1975/11/1/medline PY - 1975/11/1/entrez KW - Age Factors KW - Americas KW - Clinical Research KW - Contraception KW - Contraceptive Effectiveness KW - Demographic Factors KW - Developed Countries KW - Examinations And Diagnoses KW - Family Planning KW - Fertility--men KW - Laboratory Examinations And Diagnoses KW - Laboratory Procedures KW - Male Sterilization KW - New York KW - North America KW - Northern America KW - Population KW - Population Characteristics KW - Population Dynamics KW - Reproduction KW - Research Methodology KW - Sperm Count KW - Sperm Transport KW - Sterilization, Sexual KW - United States KW - Use-effectiveness SP - 1048 EP - 56 JF - Fertility and sterility JO - Fertil. Steril. VL - 26 IS - 11 N2 - From a population of men applying for voluntary sterilization, 100 consecutive cases were selected according to the following criteria: (1) each man had fathered at least two children; (2) at the time of the request for a vasectomy the man's wife was pregnant; and (3) a complete prevasectomy semen analysis, including sperm morphology, was available. The usual parameters of human semen evaluation are reported: the mean volume of the ejaculates was 3.3 ml +/- 0.84 SD (range, 0.5 to 11 ml); the mean sperm density was 81 million/ml +/- 57 SD (range, 4 to 318); while the geometric mean, which according to the sample distribution is more representative, was 68. The mean percentage of motile sperm was 63% +/- 16 SD (range, 10 to 95%); the grade of forward progression was 3 +/- 0.55 SD (range, 2 to 4); and for sperm morphology the mean number of sperm with oval heads was 75% +/- 6 SD (range, 21 to 90%). Statistical comparison of these findings with those of our previous study of the semen of 1300 fertile men revealed complete agreement; minor statistical differences, on single parameters, with three similar studies are indicated. A positive relationship between the different variables, sperm density and sperm motility (in percentage of motile sperm and degree of forward motion), as well as between the two variables of sperm motility and sperm morphology to the other variables was confirmed. SN - 0015-0282 UR - https://www.unboundmedicine.com/medline/citation/1183628/The_semen_of_fertile_men__II__Semen_characteristics_of_100_fertile_men_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0015-0282(16)41469-X DB - PRIME DP - Unbound Medicine ER -