Table 1 Characteristics of subjects (N=286)

Age (year)

60 ~ 64

12

(4.20%)

3

(1.75%)

9

(7.83%)

<0.0001

65 ~ 69

33

(11.5%)

7

(4.09%)

26

(22.6%)

70 ~ 74

114

(39.8%)

73

(42.6%)

41

(35.6%)

75 ~ 79

97

(33.9%)

70

(40.9%)

27

(23.4%)

80 ~

30

(10.4%)

18

(10.5%)

12

(10.4%)

mean (SD)

74.03

(5.08)

75.08

(4.35)

72.47

(5.67)

<0.0001

Education

Under high school

220

(76.9%)

120

(70.1%)

100

(86.9%)

0.0010

Over college

66

(23.0%)

51

(29.8%)

15

(13.0%)

Monthly income ($)

≤ 20,000

128

(44.7%)

72

(42.1%)

56

(48.7%)

0.2718

> 20,000

158

(55.2%)

99

(57.8%)

59

(51.3%)

Married (Current)

Yes

243

(84.9%)

157

(91.8%)

86

(74.7%)

<0.0001

No

43

(15.0%)

14

(8.19%)

29

(25.2%)

Smoking status

Current smoker

13

(4.55%)

13

(7.60%)

0

(0.00%)

<0.0001

Ex-smoker

114

(39.8%)

112

(65.5%)

2

(1.74%)

Never smoked

159

(55.5%)

46

(26.9%)

113

(98.2%)

Alcohol drinking

Drinker

95

(33.2%)

71

(41.5%)

24

(20.8%)

<0.0001

Ex-drinker

88

(30.7%)

71

(41.5%)

17

(14.7%)

Non-drinker

103

(36.0%)

29

(16.9%)

74

(64.3%)

History of diabetes

Yes

70

(24.4%)

45

(26.3%)

25

(21.7%)

0.3774

No

216

(75.5%)

126

(73.6%)

90

(78.2%)

History of hypertension

Yes

176

(61.5%)

115

(67.2%)

61

(53.0%)

0.0155

No

110

(38.4%)

56

(32.7%)

54

(46.9%)

Sarcopenia

Yes

219

(76.6%)

138

(80.7%)

81

(70.4%)

0.0274

No

67

(23.4%)

33

(19.3%)

34

(29.6%)

APOE genotype

w/o allele 4

231

(80.7%)

136

(79.5%)

95

(82.6%)

0.5174

w/ allele 4

55

(19.2%)

35

(20.4%)

20

(17.3%)

MET

mean (SD)

4008.3

(8852.9)

4226.1

(9886.7)

3684.4

(7070.6)

0.5896