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Table 1 Performance on neuropsychological tests and prospective memory task

From: Deficits in retrospective and prospective components underlying prospective memory tasks in amnestic mild cognitive impairment

 

NC ( N=22)

MCI (N=19)

Cohen’s d (95%CI)

Age

70.52(5.76)

73.42(6.93)

0.52(−0.11 to 1.14)

Gender (%female)

13/22

9/19

——

Education

13.59(2.77)

11.95(3.36)

−0.53(−1.15 to 0.10)

MMSE

27.67(2.01)

26.82(2.04)

−0.41(−1.03 to 0.21)

ADL

14.43(0.98)

15.31(1.92)

0.58(−0.05 to 1.21)

Memory

   

Directed Memory

16.65(2.41)

10.77(3.15)

−2.08(−2.84 to −1.32)***

RCPTC

9.77(3.82)

2.00(2.72)

−2.27(−3.06 to −1.48)***

Story recall

8.40(2.02)

4.65(1.46)

−2.06(−2.82 to −1.30)***

Executive function

   

Trail Making B

86.10(39.81)

89.07(41.20)

0.07(−0.54 to 0.69)

Digit-Span Backward

4.52(1.83)

4.38(1.10)

−0.09(−0.7 to 0.52)

Stroop

34.61(9.66)

48.24(18.33)

0.93(0.29 to 1.58)*

Prospective memory

   

Summary score (maximum=12 )

9.00(1.35)

6.95(2.07)

−1.17(−1.83 to −0.50)**

PM component score (maximum= 6)

4.14(1.13)

2.42(1.47)

−1.30(−1.97 to −0.62) **

RM component score (maximum= 6)

4.86(0.89)

4.53(1.31)

−0.29(−0.91 to 0.32)

Event-based score (maximum= 4)

3.23(0.69)

2.63(0.83)

−0.79(0.32 to −1.41)*

Time-based (maximum= 4)

2.77(0.75)

2.05(0.97)

−0.84(0.33 to −1.46)*

Activity-based (maximum= 4)

3.00(0.76)

2.26(0.81)

−0.94(0.33 to −1.57)**

Total errors

2.55(1.01)

4.32(1.20)

1.58(0.87 to 2.28) ***

PM error

1.55(1.06)

2.58(1.35)

0.84(0.20 to 1.48) *

RM error

1.00(0.76)

1.58(1.64)

0.46(−0.17 to 1.08)

Ongoing task

   

Mathematic problems (maximum=20)

10.50(3.85)

7.21(4.17)

−0.81(−1.44 to −0.17)*

PAL

10.32(4.07)

5.11(3.25)

−1.38(−2.06 to −0.69)***

Writing Fluency

45.68(9.14)

36.47(7.98)

−1.07(0.33 to −0.70)**

  1. Note. * p < .05, ** p < .01, *** p < .001.