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Table 6 Association analysis of TPH2 genotypes and predictor variables in MDD+suicide group

From: Effect of Tryptophan Hydroxylase-2 rs7305115 SNP on suicide attempts risk in major depression

  Genotype (N) P value a
  AA (n = 31) AG (n = 118) GG (n = 66)  
Family history of suicide     0.006
   Yes 5 45 33  
   No 26 73 33  
Negative life events half year ago     0.005
   Yes 10 51 42  
   No 21 67 24  
Hopelessness     0.002
   Yes 17 86 58  
   No 14 32 8  
  1. a Pearson chi-square test.