Table 3 Characteristics of participants

Cognition

3,108

16.504

4.338

4

27

CHEI score

3,108

60.264

9.345

33.204

96.855

Mean CHEI

3,108

60.218

6.016

45.332

75.556

Age

3,108

63.519

7.114

55

97

Gender

3,108

0.425

0.494

0

1

——0(Male)

1786(57.5%)

——1(Female)

1322(42.5%)

Education

3,108

0.661

0.826

0

2

——0(\(\le\)primary school)

1765(56.8%)

——1(middle school)

632(20.3%)

——2(\(\ge\)high school)

711(22.9%)

Urban/Rural

3,108

0.414

0.493

0

1

——0(suburban, village)

1820(58.5%)

——1(city, town or county capital city )

1288(41.4%)

Per capita household income

3,108

7318.070

6604.674

40

34373.330

BMI, kg/m2

3,108

23.551

3.527

12.415

43.374

——0(BMI \(<18.5\) kg/m2)

186(6.0%)

——1(18.5\(\le\)BMI \(<24\) kg/m2)

1504(48.4%)

——2(24\(\le\)BMI \(<28\) kg/m2)

984(31.7%)

——3(28\(\le\)BMI \(<30\) kg/m2)

434(14.0%)

ADL disability

3,108

0.037

0.189

0

1

——0(No)

2993(96.3%)

——1(Yes)

115(3.7%)

Physical activity, MET-h/wk

3,108

78.034

35.201

55

254.250

Drinking

3,108

0.261

0.439

0

1

——0(No)

2298(73.9%)

——1(Yes)

810(26.1%)

Smoking

3,108

0.300

0.458

0

1

——0(No)

2177(70.0%)

——1(Yes)

931(30.0%)

Diabetes

3,108

0.040

0.197

0

1

——0(No)

2983(96.0%)

——1(Yes)

125(4.0%)

Hypertension

3,108

0.200

0.400

0

1

——0(No)

2485(80.0%)

——1(Yes)

623(20.0%)