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dc.contributor.authorChen, Zuying
dc.contributor.authorGodfrey-Bailey, Linda
dc.contributor.authorSchiff, Isaac
dc.contributor.authorHauser, Russ B.
dc.date.accessioned2012-01-03T22:44:01Z
dc.date.issued2004
dc.identifier.citationChen, Zuying, Linda Godfrey-Bailey, Isaac Schiff, and Russ Hauser. 2004. Impact of seasonal variation, age and smoking status on human semen parameters: The Massachusetts General Hospital experience. Journal of Experimental & Clinical Assisted Reproduction 1: 2.en_US
dc.identifier.issn1743-1050en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:6177594
dc.description.abstractBackground: To investigate the relationship of human semen parameters with season, age and smoking status. Methods: The present study used data from subjects recruited into an ongoing cross-sectional study on the relationship between environmental agents and semen characteristics. Our population consisted of 306 patients who presented to the Vincent Memorial Andrology Laboratory of Massachusetts General Hospital for semen evaluation. Sperm concentration and motility were measured with computer aided sperm analysis (CASA). Sperm morphology was scored using Tygerberg Kruger strict criteria. Regression analyses were used to investigate the relationships between semen parameters and season, age and smoking status, adjusting for abstinence interval. Results: Sperm concentration in the spring was significantly higher than in winter, fall and summer (p < 0.05). There was suggestive evidence of higher sperm motility and percent of sperm with normal morphology in the spring than in the other seasons. There were no statistically significant relationships between semen parameters and smoking status, though current smokers tended to have lower sperm concentration. We also did not find a statistically significant relationship between age and semen parameters. Conclusions: We found seasonal variations in sperm concentration and suggestive evidence of seasonal variation in sperm motility and percent sperm with normal morphology. Although smoking status was not a significant predictor of semen parameters, this may have been due to the small number of current smokers in the study.en_US
dc.language.isoen_USen_US
dc.publisherBioMed Centralen_US
dc.relation.isversionofdoi:10.1186/1743-1050-1-2en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC524369/pdf/en_US
dash.licenseLAA
dc.titleImpact of Seasonal Variation, Age and Smoking Status on Human Semen Parameters: The Massachusetts General Hospital Experienceen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalJournal of Experimental & Clinical Assisted Reproductionen_US
dash.depositing.authorHauser, Russ B.
dc.date.available2012-01-03T22:44:01Z
dash.affiliation.otherHMS^Obstetrics Gynecology and Repro. Bio. - MGHen_US
dash.affiliation.otherSPH^Environmental+Occupational Medicine+Epien_US
dc.identifier.doi10.1186/1743-1050-1-2*
dash.contributor.affiliatedSchiff, Isaac
dash.contributor.affiliatedHauser, Russ


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