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Table 2 Comparison of the genotype and allele frequencies of GRIN2A, GRIN2B, and GRM7 polymorphisms between ADHD probands and controls

From: Association between the GRM7 rs3792452 polymorphism and attention deficit hyperacitiveity disorder in a Korean sample

  ADHD (n = 202) Controls (n = 159) χ2 Cohen’s w p
  n % n %    
GRIN2A (rs8049651)        
Genotype      1.73 0.07 0.421
GG 179 89.1 137 88.2    
GA 21 10.4 22 13.8    
AA 1 0.5 0 0    
Allele      0.46 0.03 0.499
G 379 94.3 299 93.1    
A 23 5.7 19 6.9    
GRIN2B (rs2284411)        
Genotype      1.52 0.06 0.469
CC 128 63.7 111 69.8    
CT 66 32.8 43 27.1    
TT 7 3.5 5 3.1    
Allele      1.16 0.04 0.281
C 322 80.1 299 83.3    
T 80 19.9 19 16.7    
GRM7 (rs3792452)        
Genotype      1.62 0.07 0.444
GG 174 86.6 140 88.1    
GA 25 12.4 19 11.9    
AA 2 1 0 0    
Allele      0.42 0.02 0.551
G 373 92.8 299 94    
A 29 7.2 19 6