Table 2.

Allele and Genotype Frequencies of the DRD2 Ser311Cys Polymorphism in Schizophrenia Patients and Control Subjects

	Schizophrenia Patients					Control Subjects
Study	Cys Alleles	Ser Alleles	Cys/Cys Genotypes	Cys/Ser Genotypes	Ser/Ser Genotypes	Cys Alleles	Ser Alleles	Cys/Cys Genotypes	Cys/Ser Genotypes	Ser/Ser Genotypes
Arinami et al., 1994	17	295	3	11	142	11	589	0	11	289
Arinami et al., 1996	12	258	0	12	123	14	544	1	12	266
Asherson et al., 1994	2	222	0	2	110	1	127	0	1	63
Chen et al., 1996	4	224	0	4	110	5	171	0	5	83
Crawford et al., 1996	7	161	1	5	78	3	159	0	3	78
Fujiwara et al., 1997	2	102	0	2	50	1	51	0	1	25
Gejman et al., 1994	3	209	0	3	103	4	246	0	4	121
Harano, 1997	8	132	0	8	62	8	194	0	8	93
Hattori et al., 1994	7	193	0	7	93	8	192	1	6	93
Himei et al, 2002	15	365	0	15	175	6	200	0	6	97
Hori et al., 2001	24	458	NA	NA	NA	16	386	NA	NA	NA
Jönsson et al., 2003	14	332	1	12	160	4	468	0	4	232
Kaneshima et al., 1997	4	152	0	4	74	7	217	0	7	105
Laurent et al., 1994	5	221	0	5	108	3	365	0	3	181
Morimoto et al., 2002	3	93	0	3	45	3	93	0	3	45
Nöthen et al., 1994	4	354	0	4	175	5	271	0	5	133
Ohara et al., 1996	1	305	0	1	152	3	239	0	3	118
Sasaki et al., 1996	12	534	0	12	261	11	499	1	9	245
Serretti et al., 2000	37	695	0	37	329	15	519	0	15	252
Shaikh et al., 1994	7	287	0	7	140	1	199	0	1	99
Sobell et al., 1994	12	664	0	12	326	67	3761	1	65	1848
Spurlock et al., 1998: Austria	1	143	0	1	71	4	110	0	4	53
Spurlock et al., 1998: Ireland	1	67	0	1	33	4	174	0	4	85
Spurlock et al., 1998: Sweden	0	134	0	0	67	2	128	0	2	63
Spurlock et al., 1998: Wales	1	193	0	1	96	2	210	0	2	104
Tanaka et al., 1996	9	203	0	9	97	8	204	0	8	98
Verga et al., 1997	11	195	0	11	92	5	189	0	5	92

NA: These data were not available in the published work or from the authors.