Shedding Light on the Controversy Surrounding the Temporal Decline in Human Sperm Counts: A Systematic Review

Table 1

Summary of studies, published from 1995 up to date, showing an unambiguous decline in sperm counts.

Publication date	Author	Location	Study period	Number of participants
1995	Auger et al. [19]	France	1973–1992	1,351
1996	Irvine et al. [20]	Scotland	1984–1995	577
1996	Van Waeleghem et al. [21]	Belgium	1977–1995	416
1996	De Mouzon et al. [22]	France	1989–1994	7,714
1996	Menchini-Fabris et al. [23]	Italy	1970–1990	4,518
1996	Adamopoulos et al. [24]	Greece	1977–1993	2,385
1999	Ulstein et al. [25]	Norway	1975–1994	4,072
1998	Bonde et al. [26]	Denmark	1986–1995	1,196
1999	Bilotta et al. [27]	Italy	1981–1995	1,068
1999	Zhang et al. [28]	China	1983–1996	9,292
2003	Almagor et al. [29]	Israel	1990–2000	2,638
2003	Vicari et al. [30]	Italy	1982–1999	716
2005	Lackner et al. [31]	Austria	1986–2003	7,780
2007	Sripada et al. [32]	Scotland	1994–2005	4,832
2008	Liang et al. [33]	China	1980–2005	5,834
2009	Feki et al. [34]	Tunisia	1996–2007	2,940
2010	Molina et al. [35]	Argentina	1995–2004	9,168
2012	Geoffroy-Siraudin et al. [36]	France	1988–2007	10,932
2012	Haimov-Kochman et al. [37]	Israel	1995–2009	2,182
2013	Mendiola et al. [38]	Spain	2001–2011	273