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Table 2 Allele and genotype frequency.

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

COMT

 

MCIa (n = 223)

ADb (n = 345)

Controls (n = 253)

Allele

A

0.520

0.470

0.512

 

G

0.480

0.530

0.488

Genotype

AA

0.278

0.214

0.265

 

AG

0.484

0.510

0.494

 

GG

0.238

0.275

0.241

H-Wa

p-Value

0.69

0.75

0.90

APOE

 

MCIa (n = 223)

ADb (n = 345)

Controls (n = 253)

Allele

2

0.027

0.035

0.059

 

3

0.731

0.664

0.838

 

4

0.242

0.301

0.103

Genotype

2.2

0.000

0.000

0.008

 

2.3

0.045

0.052

0.095

 

2.4

0.009

0.017

0.008

 

3.3

0.561

0.432

0.692

 

3.4

0.296

0.412

0.198

 

4.4

0.090

0.087

0.000

H-Wc

p-value

0.07

0.85

0.11

  1. aMCI: mild cognitive impairment. bAD: Alzheimer's disease. cHardy-Weinberg probability test.