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Table 1 Demographic characteristics, implusivity and ACEs between Groups (n = 394)

From: Prevalence and risk factors for non-suicidal self-injury among patients with depression or bipolar disorder in China

 

(n, %)

Comparisons

D-NSSI Group

BD-NSSI Group

Non-NSSI Group

χ2

P-value

Participants

135(34.3)

110(27.9)

149(37.8)

  

Age (years)

   

67.348

< 0.001

 18 ~ 30

110(81.5)

80(72.7)

55(36.9)

  

 31 ~ 45

17(12.6)

21(19.1)

61(40.9)

  

 46 ~ 60

8(5.9)

9(8.2)

33(22.2)

  

Sex

   

0.559

0.756

 Male

38(28.1)

33(30.0)

48(32.2)

  

 Female

97(71.9)

77(70.0)

101(67.8)

  

Education of patients

   

1.586

0.811

 Junior school graduate and below

18(13.3)

18(16.4)

17(11.4)

  

 High school graduate

29(21.5)

21(19.1)

34(22.8)

  

 University and above

88(65.2)

71(64.5)

98(65.8)

  

Employments status

   

25.439

< 0.001

 Employed

40(29.6)

55(50.0)

88(59.1)

  

 Unemployed

95(70.4)

55(50.0)

61(40.9)

  

Marital status

   

60.204

< 0.001

 Single

107(79.3)

79(71.8)

57(38.2)

  

 Married

22(16.3)

23(20.9)

80(53.7)

  

 Divorced or widowed

6(4.4)

8(7.3)

12(8.1)

  

Monthly family income (US dollar)

   

11.212

0.024

 400 ~ 700

31(23.0)

33(30.0)

55(36.9)

  

 700 ~ 1000

47(34.8)

24(21.8)

43(28.8)

  

  > 1000

57(42.2)

53(48.2)

51(34.3)

  

Residence

   

1.248

0.536

 Urban

86(63.7)

77(70.0)

96(64.4)

  

 Rural

49(36.3)

33(30.0)

53(35.6)

  

Left-behind experience

   

5.113

0.078

 Yes

39(28.9)

32(29.1)

28(18.8)

  

 No

96(71.1)

78(70.9)

121(81.2)

  

Substance abuse experience

   

8.638

0.013

 Yes

27(20.0)

30(27.3)

19(12.8)

  

 No

108(80.0)

80(72.7)

130(87.2)

  

Family type

   

0.754

0.945

 Nuclear family

72(53.3)

60(54.5)

86(57.7)

  

 Joint family

25(18.5)

18(16.4)

24(16.1)

  

 Single family

38(28.2)

32(29.1)

39(26.2)

  

Family structure

   

1.205

0.547

 Single child family

68(50.4)

60(54.5)

71(47.7)

  

 Multiple children family

67(49.6)

50(45.5)

78(52.3)

  

Education of father

   

6.071

0.194

 Junior school graduate and below

64(47.4)

44(40.0)

73(49.0)

  

 High school graduate

21(15.6)

20(18.2)

33(2.2)

  

 University and above

50(37.0)

46(41.8)

43(28.8)

  

Education of mother

   

5.688

0.224

 Junior school graduate and below

61(45.2)

45(40.9)

82(55.0)

  

 High school graduate

30(22.2)

28(25.5)

28(18.8)

  

 University and above

44(32.6)

37(33.6)

39(26.2)

  

Duration of illness (years)

   

63.705

<0.001

  < 3

108(80.0)

35(31.8)

86(57.7)

  

 3 ~ 5

16(11.9)

27(24.5)

19(12.7)

  

 6 ~ 10

5(3.7)

29(26.4)

22(14.8)

  

  > 10

6(4.4)

19(12.3)

22(14.8)

  

Times of recurrence

   

26.002

0.001

 0

45(33.4)

15(13.6)

42(28.2)

  

 1 ~ 3

64(47.4)

48(43.7)

62(41.6)

  

 4 ~ 5

13(9.6)

20(18.2)

26(17.5)

  

  > 5

13(9.6)

27(24.5)

19(12.7)

  

Impulsivity

   

12.206

0.002

 Yes

41(30.4)

43(39.1)

29(19.5)

  

 No

94(69.6)

67(60.9)

120(80.5)

  

Adverse childhood experiences

   

26.313

<0.001

 Yes

134(99.3)

107(97.3)

127(85.2)

  

 No

1(0.7)

3(2.7)

22(14.8)

  
  1. D-NSSI Group Depression-NSSI Group
  2. BD-NSSI Group Bipolar Disorder-NSSI Group