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Table 1 Demographic and clinical characteristics of all participants

From: Metabolomic biomarkers related to non-suicidal self-injury in patients with bipolar disorder

Variable

Group

Analysis

BD (NSSI) (N = 31)

BD (Non-NSSI) (N = 46)

HC (n = 10)

F/χ2

p

Age (year)

25.48 ± 7.78

26.78 ± 9.94

26.9 ± 8.14

0.139

0.870

Onset age (year)

19.52 ± 5.56

22.09 ± 5.37

-

0.153

0.046*

The total scores of HAMD-24

37.32 ± 5.63

32.89 ± 5.36

-

0.040

0.001*

Number(NSSI)

6.06 ± 8.28

-

-

  

Gender

male

11

21

3

1.288

0.525

female

20

25

7

marriage

1 = unmarried

28

26

7

11.185 (0.083)

2 = married

2

16

3

3 = divorced

1

3

0

4 = digamous

0

1

0

5 = cohabit

0

0

0

6 = widowed

0

0

0

7 = separated

0

0

0

family history

1 = Yes

8

13

0

6.943

0.139

2 = No

22

33

9

9 = unknown

1

0

1

life events

1 = No

15

30

10

8.830

0.012*

2 = Yes

16

16

0

Sleep time

 < 5 h

10

7

1

19.732

0.000*

5-8 h

13

31

1

 > 8 h

8

8

8

working pressure

1 = No

10

27

7

10.877

0.028*

2 = Mild

8

11

3

3 = severe

13

8

0

way (NSSI)

1 = cutting

17

-

-

  

2 = scratching

8

-

-

  

3 = hitting

3

-

-

  

4 = biting

3

-

-

  

Medicatio-n history

N

4

4

   

1 = Sertraline + lithium carbonate

2

1

   

2 = fluoxetine + lithium carbonate

1

1

   

3 = lithium carbonate

1

2

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