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Table 3 Exact G test, allele and genotype frequencies.

From: The COMT Val158 Met polymorphism as an associated risk factor for Alzheimer disease and mild cognitive impairment in APOE 4 carriers

COMTa    COMTb   
  p-value S.E.c   p-value SEc
MCI vs controls 0.85 <0.001 MCI vs controls 0.85 <0.001
MCI vs AD 0.11 <0.001 MCI vs AD 0.10 <0.001
AD vs controls 0.16 <0.001 AD vs controls 0.16 <0.001
APOE a    APOE b   
  p-value SE c   p-value SE c
MCI vs controls 0.00 <0.001 MCI vs controls 0.00 <0.001
MCI vs AD 0.06 <0.001 MCI vs AD 0.06 <0.001
AD vs controls 0.00 <0.001 AD vs controls 0.00 <0.001
  1. a Allele frequency. bGenotype frequency. c Standard error.