Table 2 Results of the relative importance of influencing factors to each cognitive domain in the grouped sample (N = 583)

Cognitive Z-score (R² =0.360)

Education

0.41

< 0.001

43.9%

Age

−0.29

< 0.001

20.6%

Mental activity

0.26

0.007

12.1%

Occupation

0.07

0.294

11.3%

Social activity

−0.18

0.113

5.8%

Physical activity

0.05

0.599

3.8%

MS

0.04

0.415

2.0%

Gender

0.03

0.609

0.4%

BMI

0.01

0.880

0.2%

Memory Z-score (R² =0.289)

Education

0.35

< 0.001

38.4%

Age

−0.22

< 0.001

16.3%

Mental activity

0.21

0.030

12.6%

MS

0.14

0.008

9.2%

Occupation

0.04

0.473

8.7%

Social activity

−0.20

0.075

6.5%

Physical activity

0.12

0.218

5.6%

Gender

0.09

0.084

2.5%

BMI

−0.01

0.819

0.3%

Visuospatial Z-score (R² =0.158)

Education

0.35

< 0.001

63.6%

Occupation

0.02

0.781

12.3%

Age

−0.14

0.017

9.5%

Mental activity

0.15

0.164

7.0%

Social activity

−0.22

0.074

3.5%

Physical activity

0.08

0.428

1.6%

Gender

−0.04

0.535

1.4%

MS

< 0.01

0.995

0.8%

BMI

0.01

0.887

0.3%

Attention Z-score (R² =0.266)

Education

0.31

< 0.001

36.3%

Age

−0.31

< 0.001

32.7%

Occupation

0.06

0.322

10.1%

Mental activity

0.14

0.141

8.7%

Social activity

0.03

0.771

6.7%

Physical activity

−0.09

0.340

3.1%

Gender

0.04

0.492

0.9%

MS

0.01

0.895

0.9%

BMI

−0.02

0.663

0.6%

Executive Z-score (R² =0.167)

Education

0.19

0.006

26.8%

Mental activity

0.28

0.009

24.2%

Age

−0.18

0.002

18.5%

Occupation

0.07

0.281

11.2%

Social activity

−0.12

0.314

9.6%

Physical activity

0.02

0.831

7.3%

Gender

0.04

0.437

1.5%

MS

−0.02

0.787

0.7%

BMI

−0.01

0.923

0.2%