Affiliations 

  • 1 1 Physiology Unit, Faculty of Medicine, Lincoln University College, Malaysia
  • 2 3 Fertility Medical Group, Avenida Brigadeiro Luiz Antônio, São Paulo, Brazil
  • 3 4 Faculty of Science, Lincoln University College, Malaysia
  • 4 2 Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
Hum Exp Toxicol, 2018 Mar;37(3):247-255.
PMID: 28413887 DOI: 10.1177/0960327117703690

Abstract

PURPOSE: To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time.

MATERIALS AND METHODS: We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men.

RESULTS: A time-dependent decline of sperm concentration ( r = -0.307, p = 0.02) in the last 50 years and an overall 32.5% decrease in mean sperm concentration was noted.

CONCLUSION: This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to serve the scientific research zone related to male reproductive health.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.