Table 1.

Characteristics of the studies included in the meta‐analysis

Authors	Year	Ethnicity	Study design	Type of control group	Variant	Case/control	HWE p value	Ref.
Medeiros et al.	2002	Caucasians	Case‐control	Healthy controls	rs1799983	125/153	0.63	17
					4a/b		0.42
Medeiros et al.	2002	Caucasians	Case‐only	–	rs1799983	161/‐	–	18
Medeiros et al.	2003	Caucasians	Case‐only	–	4a/b	61/‐	–	25
Marangoni et al.	2006	Caucasians	Case‐control	BPH patients	rs1799983	84/65	0.79	19
Jacobs et al.	2008	Approximately 97% Caucasians	Case‐control	Noncancer	rs1799983	1,425/1,453	0.07	13
Marangoni et al.	2008	Caucasians	Case‐control	BPH patients	rs2070744	83/94	0.71	20
Lee et al.	2009	Non‐Hispanic Caucasians	Case‐control	Non‐PCa	rs1799983	1,213/1,433	0.94	21
		African Americans	Case‐control	Non‐PCa	rs1799983	107/409	0.51
Sanli et al.	2011	Caucasians	Case‐control	Healthy controls	4a/b	132/158	0.88	26
Ziaei et al.	2013	Caucasians	Case‐control	BPH patients	rs1799983	95/111	0.92	22
Safarinejad et al.	2013	Caucasians	Case‐control	Healthy controls	rs1799983	170/340	0.10	23
					rs2070744		0.22
					4a/b		0.11
Branković et al.	2013	Caucasians	Case‐control	Healthy controls	rs1799983	150/100	0.69	24
					rs2070744		0.56
				BPH patients	rs1799983	150/150	0.70
					rs2070744		0.66