Table 2 Genotype and allele distributions of SNP2 (Thr98Ser) in patients with schizophrenia and controls for each sex

Total

CC

GC

GG

χ²

P

C

G

χ²

P

χ²

P

Patients

352

11

(0.03)

130

(0.37)

211

(0.60)

9.09

0.011

152

(0.22)

552

(0.78)

7.00

0.008

2.90

0.089

Controls

362

28

(0.08)

144

(0.40)

190

(0.52)

200

(0.28)

524

(0.72)

0.01

0.921

Male

Patients

211

9

(0.04)

79

(0.37)

123

(0.58)

2.27

0.322

97

(0.23)

325

(0.77)

0.20

0.655

0.70

0.404

Controls

112

9

(0.08)

37

(0.33)

66

(0.59)

55

(0.25)

169

(0.75)

1.31

0.252

Female

Patients

141

2

(0.01)

51

(0.36)

88

(0.62)

10.12

0.006

55

(0.20)

227

(0.80)

8.54

0.003

3.26

0.071

Controls

250

19

(0.08)

107

(0.43)

124

(0.50)

145

(0.29)

355

(0.71)

0.39

0.534