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Table 2 Comparison of demographic, clinical and criminological characteristics among groups

From: Research on interpersonal violence in schizophrenia: based on different victim types

 

RV n = 96

AV n = 165

SV n = 71

F/x2

p

Post hoc analysis

Demographic characteristics

 Age [Mean (SD)]

37.07(11.36)

42.98(12.75)

37.79(9.56)

9.541

 < 0.001

AV > SV = RV

Sex

 Male

76(79.2%)

131(79.4%)

62(87.3%)

2.333

0.311

 

 Female

20(20.8%)

34(20.6%)

9(12.7%)

   

Ethnicity

 Han

93(96.9%)

159(96.4%)

70(98.6%)

0.689

0.839*

 

 Others

3(3.1%)

6(3.6%)

1(1.4%)

   

Education yearsa

  ≤ 9

76(80.9%)

127(77.9%)

56(79.2%)

0.346

0.841

 

  > 9

18(19.1%)

36(22.1%)

14(20.0%)

   

Living in rural areas

 Yes

67(69.8%)

130(78.8%)

46(64.8%)

5.754

0.056

 

 No

29(30.2%)

35(21.2%)

25(35.2%)

   

Ever been employed

 Yes

72(75.0%)

122(73.9%)

60(84.5%)

3.255

0.196

 

 No

24(25.0%)

43(26.1%)

11(15.5%)

   

Employment status

 Employed

17(17.7%)

28(17.0%)

24(33.8%)

9.319

0.009

SV > AV

 Unemployed

79(82.3%)

137(83.0%)

47(66.2%)

   

Marital status

 Married

44(45.8%)

57(34.5%)

20(28.2%)

6.010

0.050

 

 Othersc

52(54.2%)

108(65.5%)

51(71.8%)

   

Living situation

 Living with others

94(97.9%)

119(72.1%)

50(70.4%)

28.771

 < 0.001

RV > AV = SV

 Living alone

2(2.1%)

46(27.9%)

21(29.6%)

   

Clinical characteristics

 History of psychiatric treatment

  Yes

78(81.2%)

119(72.1%)

48(67.6%)

4.405

0.111

 

  No

18(18.8%)

46(27.9%)

23(32.4%)

   

Hospitalization

 Yes

57(59.4%)

85(51.5%)

41(57.7%)

1.767

0.413

 

 No

39(40.6%)

80(48.5%)

30(42.3%)

   

Illness duration(years)b

  < 5

32(33.3%)

53(32.1%)

23(32.9%)

0.043

0.979

 

  ≥ 5

64(66.7%)

112(67.9%)

47(67.1%)

   

Medication at the time of violence

 Yes

75(78.1%)

136(82.4%)

52(73.2%)

2.641

0.267

 

 No

21(21.9%)

29(17.6%)

19(26.8%)

   

Alcohol at the time of violence

 Yes

7(7.3%)

25(15.2%)

9(12.7%)

3.473

0.176

 

 No

89(92.7%)

140(84.8%)

62(87.3%)

   

Family history of mental illness

 Yes

13(13.5%)

10(6.1%)

6(8.5%)

4.270

0.118

 

 No

83(86.5%)

155(93.9%)

65(91.5%)

   

Criminological characteristics

 History of criminal offense

  Yes

5(5.2%)

15(9.1%)

11(15.5%)

5.123

0.077

 

  No

91(94.8%)

150(90.9%)

60(84.5%)

   

Interpersonal violent types

 Murder

63(65.6%)

43(26.1%)

9(12.7%)

61.202

 < 0.001

RV > AV = SV

 Physical assault

33(34.4%)

122(73.9%)

62(87.3%)

   

The location of the interpersonal violence

 Co-residence

70(72.9%)

7(4.2%)

0(0.0%)

222.041

 < 0.001*

RV > AV = SV

 Residence of offender

2(2.1%)

15(9.1%)

3(4.2%)

  

-

 Residence of victim

7(7.3%)

48(29.1%)

1(1.4%)

  

AV > RV = SV

 Public place

16(16.7%)

94(57.0%)

63(88.7%)

  

SV > AV > RV

 Remote place

1(1.0%)

1(0.6%)

4(5.6%)

  

SV > AV

The use of tools

 Without tools

9(9.4%)

23(13.9%)

22(31.0%)

65.444

 < 0.001

SV > AV = RV

 Bring own tools

16(16.7%)

81(49.1%)

37(52.1%)

  

SV = AV > RV

 Tools on-site

71(74.0%)

61(37.0%)

12(16.9%)

  

RV > AV > SV

Number of attacks

 Single

12(12.5%)

24(14.5%)

15(21.1%)

2.504

0.286

 

 Repeated

84(87.5%)

141(85.5%)

56(78.9%)

   

The characteristics of victims

 Sex

  With female

57(59.4%)

61(37.0%)

19(26.8%)

20.409

 < 0.001

RV > AV = SV

  Male

39(40.6%)

104(63.0%)

52(73.2%)

   

Death

 Yes

64(66.7%)

46(27.9%)

9(12.7%)

60.785

 < 0.001

RV > AV > SV

 No

32(33.3%)

119(72.1%)

62(87.3%)

   
  1. Note: SD Standard Deviation, RV Relatives Victim group, AV Acquaintances Victim group, SV Stranger Victim group
  2. *Fisher exact test
  3. aThere were two missing data in the RV and AV, and one data missing in the SV
  4. bThere was one missing data in the SV
  5. cOthers: unmarried, divorced, widowed