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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.