Global decline in semen quality: Ignoring the developing world introduces selection bias

International Journal of General Medicine

Volumn 5, Issue , 2012, Pages 303-306

  Deonandan, Raywat ^a   Jaleel, Marya ^a  

^a UNIVERSITY OF OTTAWA   (Canada)

Author keywords

Developing world; Global; Human semen; Quality

Indexed keywords

ESTROGEN;

ARTICLE; DEVELOPED COUNTRY; DEVELOPING COUNTRY; ENVIRONMENTAL EXPOSURE; HEREDITY; HUMAN; LIFESTYLE; MALE FERTILITY; MALE GENITAL TRACT PARAMETERS; SAMPLING ERROR; SEMEN ANALYSIS; SOLDIER; SOYBEAN; SPERM QUALITY; SPERMATOZOON COUNT; SPERMATOZOON MOTILITY; STANDARDIZATION; TREND STUDY; URBAN RURAL DIFFERENCE;

EID: 84877112714     PISSN: None     EISSN: 11787074     Source Type: Journal    
DOI: 10.2147/IJGM.S30673     Document Type: Article

References (39)

1. World Health Organization. WHO Laboratory Manual for the Examination of Human Semen and Sperm-cervical Mucus Interaction. 2nd ed. Cambridge, UK: Cambridge University Press; 1987.
2. World Health Organization. WHO Laboratory Manual for the Examination of Human Semen and Sperm-cervical Mucus Interaction. 3rd ed. Cambridge, UK: Cambridge University Press; 1992.
3. World Health Organization. WHO Laboratory Manual for the Examination of Human Semen and Sperm-cervical Mucus Interaction. 4th ed. Cambridge, UK: Cambridge University Press; 1999.
4. World Health Organization. WHO Laboratory Manual for the Examination and Processing of Human Semen. 5th ed. Geneva, Switzerland: World Health Organization; 2010.
5. Rasmussen PE, Erb K, Westergaard LG, Laursen SB. No evidence for decreasing semen quality in four birth cohorts of 1,055 Danish men born between 1950 and 1970. Fertil Steril. 1997;68: 1059-1064.
6. Paulsen CA, Berman NG, Wang C. Data from men in greater Seattle area reveals no downward trend in semen quality: further evidence that deterioration of semen quality is not geographically uniform. Fertil Steril. 1996;65:1015-1020.
7. Bendvold E. Semen quality in Norwegian men over a 20-year period. Int J Fertil. 1989;6:401-404.
8. Carlsen E, Giwercman A, Keiding N, Skakkebaek NE. Evidence for decreasing quality of semen during past 50 years. Br Med J. 1992; 6854:609-613.
9. Ginsburg J, Hardiman P. Decreasing quality of semen. Br Med J. 1992; 6863:1229.
10. Irvine DS. Falling sperm quality. Br Med J. 1994;6952:476.
11. Auger J, Kunstmann JM, Czyglik F, Jouannet P. Decline in semen quality among fertile men in Paris during the past 20 years. N Engl J Med. 1995;5:281-285.
12. Adamopoulos DA, Pappa A, Nicopoulou S, et al. Seminal volume and total sperm number trends in men attending subfertility clinics in the greater Athens area during the period 1977-1993. Hum Reprod. 1996;9: 1936-1941.
13. Itoh N, Kayama F, Tatsuki TJ, Tsukamoto T. Have sperm counts deteriorated over the past 20 years in healthy, young Japanese men? Results from the Sapporo area. J Androl. 2001;1:40-44.
14. Carlsen E, Giwercman A, Keiding N, Skakkebaek N. Declining semen quality and increasing incidence of testicular cancer: Is there a common cause? Environ Health Perspect. 1995;103 Suppl 7:137-139.
15. Sharpe RM, Skakkebaek NE. Are oestrogens involved in falling sperm counts and disorders of the male reproductive tract? Lancet. 1993;341: 1392-1395.
16. Pacey A. Editorial: Andrology in 2010. Hum Fertil. 2010;13: 180-181.
17. Hammoud A, Gibson M, Peterson C, Meikle A, Carrell D. Impact of male obesity on infertility: A critical review of the current literature. Fertil Steril. 2008;90:897-904.
18. Merzenich H, Zeeb H, Blettner M. Decreasing sperm quality: a global problem? BMC Public Health. 2010;10:24.
19. Irvine D. Male reproductive health: Cause for concern? Andrologia. 2000;32:195-208.
20. Deepinder F, Makker K, Agarwal A. Cell phones and male infertility: Dissecting the relationship. Reprod Biomed Online. 2007;15: 266-270.
21. Lewis S. Is male infertility on the increase? Ulster Med J. 1997;66: 78-79.
22. Joffe M. What has happened to human fertility? Hum Reprod. 2010;25: 295-307.
23. Povey A, Stocks S. Epidemiology and trends in male subfertility. Hum Fertil. 2010;13:182-188.
24. Bonde JP, Ramlau-Hansen CH, Olsen J. Trends in sperm counts: the saga continues. Epidemiology. 2011;22:617-619.
25. Skakkebaek NE, Andersson AM, Juul A, et al. Sperm counts, data responsibility, and good scientific practice. Epidemiology. 2011;22: 620-621.
26. Skakkebaek N, Jorgensen N, Main K, et al. Is human fecundity declining? Int J Androl. 2006;29:2-11.
27. Cooper T, Noonan E, von Eckardstein A, et al. World Health Organization reference values for human semen characteristics. Hum Reprod Update. 2010;16:231-245.
28. Chakroun Feki N, Abid N, Rebai A, et al. Semen quality decline among men in infertile relationships: experience over 12 years in the south of Tunisia. J Androl. 2009;30:541-547.
29. Cohn BA, Overstreet JW, Fogel RJ, Brazil CK, Baird DD, Cirillo PM. Epidemiologic studies of human semen quality: considerations for study design. Am J Epidemiol. 2002;155:664-671.
30. Swan S, Elkin E, Fenster L. The question of declining sperm density revisited: an analysis of 101 studies published 1934-1996. Environ Health Perspect. 2000;108:961-966.
31. Giwercman A, Bonde J. Declining male fertility and environmental factors. Endocrinol Metab Clin North Am. 1998;27:807-830.
32. Zou Z, Hu H, Song M, et al. Semen quality analysis of military personnel from six geographical areas of the People's Republic of China. Fertil Steril. 2011;95:2018-2023.
33. Mendiola J, Torres-Cantero AM, Moreno-Grau JM, et al. Food intake and its relationship with semen quality: a case-control study. Fertil Steril. 2009;91:812-818.
34. Hamilton M, Pacey A, Tomlinson M, et al. Working Party on Sperm Donation Services in the UK: report and recommendations. Hum Fertil (Camb). 2008;11:147-158.
35. Pacey AA. Quality assurance and quality control in the laboratory andrology. Asian J Androl. 2010;12:21-25.
36. Ledger W. Demographics of infertility. Reprod Biomed Online. 2009; 18 Suppl 2:11-14.
37. Jouannet P, Wang C, Eustache F, Kold-Jensen T, Auger J. Semen quality and male reproductive health: The controversy about human sperm concentration decline. APMIS. 2001;109:333-344.
38. Swan SH, Elkin EP, Fenster L. Have sperm densities declined? A reanalysis of global trend data. Environ Health Perspect. 1997;105: 1228-1232.
39. Corrales JJ, Cordero M, Galindo P, Burgo RM, Hernández J, Manuel Miralles J. Trends in semen quality in a non-industrialized population from the Salamanca area, Spain, during the last 30 years. Med Clin (Barc). 2011;136:277-283.