Table 3 Univariable logistic regression analysis of the Training Cohorts

Age (years)

<0.001

 60 ~

1.000 (Reference)

 65 ~

1.293 (1.038 ~ 1.610)

0.022

 70 ~

2.060 (1.650 ~ 2.571)

<0.001

 75 ~

3.136 (2.520 ~ 3.902)

<0.001

Education

<0.001

 Illiterate

1.000 (Reference)

 Primary school

0.622 (0.515 ~ 0.752)

<0.001

 Middle school

0.445 (0.334 ~ 0.593)

<0.001

 High school

0.261 (0.153 ~ 0.444)

<0.001

 College and above

0.170 (0.062 ~ 0.465)

0.001

Social activity

<0.001

 Never

1.000 (Reference)

 Not regularly

0.820 (0.631 ~ 1.066)

0.138

 Almost Weekly

0.586 (0.436 ~ 0.789)

<0.001

 Almost daily

0.671 (0.552 ~ 0.815)

<0.001

Smoking

0.075

 Never

1.000 (Reference)

 Quit

1.225 (0.972 ~ 1.544)

0.086

 Less than 20 /day

0.850 (0.652 ~ 1.107)

0.227

 More than 20 /day

0.870 (0.685 ~ 1.105)

0.254

Drinking

<0.001

 Never

1.000 (Reference)

 Quit

0.825 (0.630 ~ 1.082)

0.165

 Less than once/month

0.603 (0.422 ~ 0.860)

0.005

 More than once/month

0.667 (0.547 ~ 0.814)

<0.001

Self-report health condition

<0.001

 Very good

1.000 (Reference)

 Good

1.297 (0.642 ~ 2.621)

0.468

 Fair

1.522 (0.784 ~ 2.958)

0.215

 Poor

2.413 (1.251 ~ 4.656)

0.009

 Very poor

3.592 (1.842 ~ 7.006)

<0.001

Comorbidity condition

<0.001

 0

1.000 (Reference)

 1

1.176 (0.945 ~ 1.463)

0.147

  ≥ 2

1.572 (1.289 ~ 1.919)

<0.001

Gait speed

0.238 (0.164 ~ 0.345)

<0.001

Cognitive function

0.883 (0.867 ~ 0.900)

<0.001

 Normal

1.000 (Reference)

 Depression

1.691 (1.379 ~ 2.075)

<0.001

Marital status

 Married/Cohabitated

1.000 (Reference)

 Other

1.353 (1.120 ~ 1.635)

0.002

 Male

1.000 (Reference)

 Female

1.268 (1.083 ~ 1.485)

0.003

duration of night sleep (hours)

0.001

 7–8

1.000 (Reference)

  < 7

1.260 (1.062 ~ 1.495)

0.008

  > 8

1.538 (1.155 ~ 2.048)

0.003

BMI

<0.001

 Normal

1.000 (Reference)

 Underweight

1.221 (0.955 ~ 1.562)

0.112

 Overweight

0.733 (0.612 ~ 0.878)

0.001