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. 2012 Aug 7;18:2174–2181.

Table 4. Genotypic and allelic frequencies of NOS3 G894T polymorphism in NTG and HTG patients.

Genotypes NTG (n=127) HTG (n=300) χ2 test p-value
GG [n (frequency)]
56 (0.44)
139 (0.46)
 
GT [n (frequency)]
57 (0.45)
125 (0.42)
0.82
TT [n (frequency)]
14 (0.11)
36 (0.12)
 
Alleles
G [n (frequency)]
169 (0.67)
403 (0.67)
0.86
T [n (frequency)] 85 (0.33) 197 (0.33)  

n=total number of patients for genotype, or total number of alleles (i.e., 2 alleles per patient) .