Genotype

GG genotype (%)

GA genotype (%)

AA genotype (%)

G allele frequency

A allele frequency

Chi-square

p value

Patients (n = 160)

70 (43.8)

43 (26.8)

47 (29.4)

0.57

0.43

15.1

0.0005

Controls (n = 160)

90 (56.2)

51 (31.9)

19 (11.9)

0.72

0.28