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Table 1 Demographic variables and body composition profiles of study participants

From: Gender-specific relationship between thigh muscle and fat mass and brain amyloid-β positivity

Variables

Males

Females

Total

(n = 134)

Aβ (−)

(n = 90)

Aβ (+)

(n = 44)

Total

(n= 106)

Aβ (−)

(n = 65)

Aβ (+)

(n = 41)

Cognitive stage

 NC

62 (46.3%)

49 (54.4%)

13 (29.5%)

61 (57.5%)

43 (66.2%)

18 (43.9%)

 MCI

72 (53.7%)

41 (45.6%)

31 (70.5%)

45 (42.5%)

22 (33.8%)

23 (56.1%)

Demographics

 Age, years

71.3±6.7

70.5±7.2

72.8±5.3

69.9±8.1

68.9±8.3

71.5±7.5

 Education, years

13.7±4.0

14.2±3.5

12.8±4.6

12.0±4.8

12.4±4.7

11.2±4.9

APOE, e4 carrier

47 (35.1%)

19 (21.1%)

28 (63.6%)

33 (31.1%)

10 (15.4%)

23 (56.1%)

 Hypertension

64 (47.8%)

46 (51.1%)

18 (40.9%)

49 (46.2%)

29 (44.6%)

20 (48.8%)

 Diabetes

32 (23.9%)

23 (25.6%)

9 (20.5%)

17 (16.0%)

11 (16.9%)

6 (14.6%)

Body composition

 BMI, kg/m2

24.0±2.6

24.56±2.57

22.85±2.41

23.5±2.9

24.01±2.91

22.69±2.84

 LASMI, kg/m2

5.57±0.47

5.62±0.50

5.48±0.39

4.64±0.44

4.72±0.42

4.50±0.44

 GFFP, %

18.72±4.05

19.48±4.02

17.15±3.66

25.19±4.54

25.28±4.08

25.05±5.24

Aβ deposition

 Centiloid

27.0±42.1

1.3±6.7

79.6±34.2

27.1±37.1

2.2±6.3

66.4±30.9

Cognitive tests

 SVLT recall

4.4±2.9

5.2±2.9

2.9±2.3

5.2±3.4

6.1±3.1

3.5±3.2

 RCFT recall

13.2±6.9

15.0±7.0

9.7±5.1

11.0±6.9

13.0±6.7

7.8±6.1

 K-BNT

46.7±7.8

47.7±7.3

44.7±8.5

43.3±9.7

45.1±8.6

40.3±10.8

 RCFT copying

32.2±4.5

32.9±3.1

30.7±6.2

30.4±7.2

31.7±5.7

28.3±8.8

 DSB

3.9±1.0

3.9±1.0

3.9±1.0

3.9±1.4

4.1±1.5

3.7±1.3

 Stroop CR

73.0±24.9

76.1±23.0

66.8±27.6

80.5±28.5

88.0±25.7

68.0±28.7

  1. Values are presented as mean ± standard deviation
  2. Abbreviations: Aβ (−) amyloid negative, Aβ (+) amyloid positive, n number of patients whose data were available for analysis, BMI body mass index, CR color reading, DSB Digit Span Test backward, LASMI lower extremity appendicular skeletal muscle mass index, GFFP gluteofemoral fat percentage, K-BNT Korean version of the Boston Naming Test, RCFT Rey-Osterrieth Complex Figure Test, SVLT Seoul Verbal Learning Test delayed recall
  3. Significant difference at p<0.05 between Aβ (−) and Aβ (+) in the same gender