Global prevalence of congenital anencephaly: a comprehensive systematic review and meta-analysis

Table 2 Summary of study specifications (incidence of Anencephaly)

First author, year, references	Report year	Continent	Country	Sample size	Number of patients with Anencephaly
Safdar, 2007, [108]	1997–2005	Asia	Saudi Arabia	33,489	1
Al-Ani, 2010, [109]	2007–2008	Asia	Iraq	10,016	9
Bener, 2012, [110]	1985–2009	Asia	Qatar	302,049	102
Akar-1, 1988, [111]	1983	Europe	Turkey	628	1
Akar-2, 1988, [111]	1984	Europe	Turkey	563	1
Akar-3, 1988, [111]	1985	Europe	Turkey	756	2
Akar-4, 1988, [111]	1986	Europe	Turkey	1145	2
Akar-5, 1988, [111]	1987	Europe	Turkey	600	6
Onrat, 2009, [112]	2003–2004	Europe	Turkey	8631	12
SN ÍPEK, 2002, [113]	1961–1999	Europe	Czech Republic	5,499,008	1812
McDonnell-2, 2015, [114]	2009–2011	Europe	Republic of Ireland	226,923	106
Evans, 1979, [115]	1965–1976	Europe	Wales	70,871	146
Van Allen-1, 2006, [116]	1997	America	Columbia	44,734	17
Van Allen-2, 2006, [116]	1998	America	Columbia	43,141	12
Van Allen-3, 2006, [116]	1999	America	Columbia	42,040	28

ISSN: 1742-4755