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Table 3 Subgroup analysis of the association between DRD3 Ser9Gly and schizophrenia in HRR studies

From: No association between the Ser9Gly polymorphism of the dopamine receptor D3 gene and schizophrenia: a meta-analysis of family-based association studies

Author

Year

Location

Ethnicity

Diagnostic criteria

Transmitted

Untransmitted

OR

95% CI

Z-value

P-value

Ser9

Gly9

Ser9

Gly9

Ambrosio42

2004

Portugal

Caucasian

DSM-IV

122

58

126

54

0.901

0.577–1.409

−0.455

0.649

Zai49

2010

Canada

Caucasian

DSM-IV

46

34

50

30

0.812

0.431–1.530

−0.645

0.519

Total

    

168

92

176

84

0.871

0.604–1.254

−0.744

0.457