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Table 2 Descriptive statistics for cognitive tests by APOE genotype

From: The association of APOE genotype and cognitive decline in interaction with risk factors in a 65–69 year old community sample

   

*E4-/*E4-

*E4+/*E4-

*E4+/*E4+

 
   

(n = 1473)

(n = 510)

(n = 38)

 
  

n

Mean (SD)

Mean (SD)

Mean (SD)

p

Wave 2 SDMT

 

1984

49.55 (9.34)

49.71 (8.92)

48.00 (10.93)

0.547

Wave 2 immediate recall

 

1984

6.97 (2.22)

7.00 (2.09)

6.79 (2.74)

0.850

Wave 2 delayed recall

 

1984

6.18 (2.40)

6.12 (2.32)

5.89 (2.81)

0.704

Wave 2 digits backwards

 

1964

5.13 (2.21)

5.21 (2.22)

5.05 (1.80)

0.772

Wave 2 MMSE score

 

1974

29.24 (1.17)

29.25 (1.12)

28.71 (1.49)

0.021

Wave 2 simple RT (sec)

 

1925

0.28 (0.07)

0.28 (0.08)

0.26 (0.05)

0.659

Wave 2 choice RT (sec)

 

1919

0.33 (0.06)

0.33 (0.05)

0.32 (0.04)

0.902

Change in SDMT

 

1980

-0.99 (5.73)

-1.07 (5.60)

-1.63 (7.44)

0.781

Change in immediate recall

 

1984

-0.32 (2.07)

-0.29 (2.06)

-0.32 (2.49)

0.959

Change in delayed recall

 

1984

-0.17 (2.20)

-0.22 (2.25)

-0.21 (3.03)

0.907

Change in digits backwards

 

1962

0.09 (1.77)

0.30 (1.82)

0.27 (1.76)

0.075

Change in MMSE score

 

1971

-0.07 (1.16)

0.00 (1.17)

-0.27 (1.43)

0.274

Change in simple RT (sec)

 

1897

0.03 (0.06)

0.03 (0.07)

0.02 (0.05)

0.892

Change in choice RT (sec)

 

1880

0.01 (0.04)

0.01 (0.04)

0.01 (0.04)

0.838