Table 1 Baseline demographic and clinical of the mild TBI group and control group

Male

11814

47.4

348981

48.5

0.001

Mean age (SD)

46.1

20.1

43.5

16.3

<0.001

Mean follow-up year (SD)

1.94

1.18

3.88

0.55

Socioeconomic status

<0.001

Low

12765

51.3

306667

42.6

Moderate

9802

39.4

290800

40.4

High

2338

9.4

122344

17.0

Urbanization level

<0.001

Urban

6867

27.6

220594

30.7

Suburban

11445

46.0

329139

45.7

Rural

6593

26.5

170078

23.6

Diabetes

2466

9.9

51555

7.2

<0.001

Hypertension

4936

19.8

111872

15.5

<0.001

Coronary artery disease

3878

15.6

78417

10.9

<0.001

Hyperlipidemia

2849

11.4

71010

9.9

<0.001

History of alcohol intoxication

479

1.9

5133

0.7

<0.001

Malignancies

847

3.4

21913

3.0

0.001

Charlson Comorbidity Index score

<0.001

0

14794

59.4

490058

68.1

1

5791

23.3

140609

19.5

≥ 2

4320

17.4

89144

12.4

Heart failure

508

2.0

8294

1.2

<0.001

Atrial fibrillation

133

0.5

2654

0.4

<0.001

Smoking

252

1.0

5412

0.8

<0.001

Obesity

106

0.4

2359

0.3

0.008

Epilepsy

407

1.6

3919

0.5

<0.001

Peripheral artery disease

244

1.0

4008

0.6

<0.001