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Table 1 Characteristics of the study population (n = 48)

From: Relationship between comprehensive geriatric assessment and amyloid PET in older persons with MCI

 

All population

MCI due to AD

MCI not due to AD

t-value

pa

Age (years) (mean ± SD)

74.6 ± 7.8

76.0 ± 7.8

73.0 ± 7.5

−1.33

0.19

Sex (men) (n, %)

21

44.0

13 (52)

8 (35)

1.20

0.23

ADL (Katz’s scale) (mean ± SD)

5.3 ± 1.3

5.1 ± 1.4

5.4 ± 1.2

0.72

0.47

IADL (Lawton’s scale) (mean ± SD)

5.1 ± 2.6

4.6 ± 2.6

5.7 ± 2.6

1.46

0.15

MMSE (mean ± SD)

26.0 ± 2.0

24.7 ± 0.7

27.0 ± 1.0

1.30

0.20

Alterated Clock Drawing Test (CDT) (n, %)

29

61.0

18 (72)

11 (47)

−2.72

0.03

NPI (mean ± SD)

6.9 ± 5.9

9.4 ± 6.6

4.2 ± 3.6

−3.40

0.006

NPI (crude value), (n,%)

 2

16

33.33

5 (31)

11 (79)

  

 3

4

8.33

1 (25)

3 (75)

  

 4

5

10.42

3 (60)

2 40)

  

 6

6

12.50

2 (33)

4 (67)

  

 8

5

10.42

3 (60)

2 (40)

  

 12

5

10.42

5 (100)

0

  

 18

6

12.50

5 (83)

1 (17)

  

 24

1

2.08

1 (100)

0

  

SPPB score (mean ± SD)

9.0 ± 2.6

9.0 ± 2.8

9.1 ± 2.5

0.0

0.99

Grip Strength (Kg) (mean ± SD)

25.6 ± 7.7

26.6 ± 8.3

24.7 ± 6.9

1.44

0.39

4-m Walking Speed (4-m WS) (m/sec) (mean ± SD)

0.87 ± 0.5

0.83 ± 0.4

0.88 ± 0.5

−0.61

0.54

Pathological Amyloid PET (n, %)

25

52.0

25 (52)

  

Normal or Light alteration Amyloid PETb (n, %)

23

48.0

23 (48)

 

Cerebral Atrophy on CTc (n, %)

26

54.0

11 (42)

14 (56)

1.48

0.15

Cerebral Vascular changes on CTd (n, %)

31

64.5

16 (51)

9 (53)

0.09

0.93

  1. athe difference between means was assessed with t-test of Student
  2. bit means that the Z-score is less than 2 SD of the normal older population of reference
  3. cdescribed according to the reference [21]
  4. ddescribed according to the reference [21]