Introduction
Methods
Participants
Procedure
Measures
Functional assessment of self-mutilation (FASM)
Short-form childhood trauma questionnaire (CTQ-SF)
Multidimensional peer victimization scale (MPVS)
Analytic procedures
Results
Descriptive statistics
Variable | n | % | M | SD | significant effect (p < 0.05) |
---|---|---|---|---|---|
Age | 14.85 | 1.82 | c, p, n | ||
Gender | n | ||||
Male | 318 | 17.8 | |||
Female | 1464 | 82.2 | |||
Resident | c, p | ||||
Urban | 1184 | 66.4 | |||
Rural | 598 | 33.6 | |||
Education | 9.05 | 1.75 | c, p, n | ||
Primary school | 77 | 4.3 | |||
Junior high school | 994 | 55.8 | |||
Senior high school or above | 711 | 39.9 | |||
CTQ | 56.02 | 13.32 | |||
MPVS | 36.32 | 17.21 | |||
NSSI | 23.10 | 9.12 |
Correlation analysis
NSSI | CTQ | C1 | C2 | C3 | C4 | C5 | PVQ | P1 | P2 | P3 | P4 | Age | Edu | Gen | Rsd | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NSSI | 1 | |||||||||||||||
CTQ |
0.31
**
|
1
| ||||||||||||||
C1 |
0.18
**
|
0.73
**
| 1 | |||||||||||||
C2 |
0.23
**
|
0.67
**
|
0.26
**
| 1 | ||||||||||||
C3 |
0.18
**
|
0.69
**
|
0.28
**
|
0.51
**
| 1 | |||||||||||
C4 |
0.32
**
|
0.81
**
|
0.54
**
|
0.39
**
|
0.45
**
| 1 | ||||||||||
C5 |
0.04
**
|
0.15
**
|
0.11
**
| -0.02 |
-0.29
**
| 0.03 | 1 | |||||||||
MPVS |
0.33
**
|
0.44
**
|
0.29
**
|
0.34
**
|
0.23
**
|
0.40
**
|
0.10
**
| 1 | ||||||||
P1 |
0.28
**
|
0.37
**
|
0.27
**
|
0.27
**
|
0.18
**
|
0.32
**
|
0.11
**
|
0.76
**
| 1 | |||||||
P2 |
0.28
**
|
0.33
**
|
0.19
**
|
0.27
**
|
0.18
**
|
0.32
**
|
0.07
*
|
0.83
**
|
0.47
**
| 1 | ||||||
P3 |
0.25
**
|
0.36
**
|
0.25
**
|
0.28
**
|
0.18
**
|
0.35
**
|
0.07
*
|
0.84
**
|
0.50
**
|
0.62
**
| 1 | |||||
P4 |
0.28
**
|
0.36
**
|
0.25
**
|
0.30
**
|
0.20
**
|
0.31
**
|
0.10
**
|
0.82
**
|
0.55
**
|
0.56
**
|
0.58
**
| 1 | ||||
Age |
-0.17
**
|
-0.11
**
| -0.02 |
-0.15
**
|
-0.12
**
|
-0.10
**
|
0.05
*
|
-0.25
**
|
-0.24
**
|
-0.17
**
|
-0.24
**
|
-0.18
**
| 1 | |||
Edu |
-0.16
**
|
-0.12
**
| -0.02 |
-0.16
**
|
-0.12
**
|
− 0.10
**
| 0.03 |
-0.25
**
|
-0.25
**
|
-0.16
**
|
-0.23
**
|
-0.20
**
|
0.85
**
| 1 | ||
Gen |
0.09
**
| -0.02 |
-0.10
**
| -0.02 | 0.02 | 0.04 | 0.02 | -0.01 |
-0.07
**
|
0.06
*
| -0.02 | -0.03 |
-0.12
**
|
-0.1
**
| 1 | |
Rsd | 0.03 |
0.06
**
| -0.04 |
0.17
**
| 0.04 | 0.02 | 0.03 |
0.12
**
|
0.07
**
|
0.07
**
|
0.11
**
|
0.14
**
| 0.01 | -0.01 | -0.05 | 1 |
Regression analysis
Model | Unstandardized Coefficients | Standard coefficient | t | p | VIF | ||
---|---|---|---|---|---|---|---|
B | SE | β | |||||
Independent variable | (constants) | 18.166 | 2.691 | 6.751 | 0.00 | ||
CTQ | |||||||
C1 | -0.017 | 0.053 | -0.009 | -0.331 | 0.740 | 1.506 | |
C2 |
0.183
|
0.073
|
0.068
|
2.506
*
|
0.012
|
1.556
| |
C3 | -0.008 | 0.053 | -0.004 | -0.154 | 0.878 | 1.738 | |
C4 |
0.391
|
0.055
|
0.206
|
7.102**
|
0.000
|
1.794
| |
C5 | 0.04 | 0.077 | 0.012 | 0.513 | 0.608 | 1.191 | |
MPVS | |||||||
P1 |
0.36
|
0.098
|
0.104
|
3.688**
|
0.000
|
1.684
| |
P2 |
0.238
|
0.084
|
0.084
|
2.823**
|
0.005
|
1.885
| |
P3 | -0.01 | 0.093 | -0.003 | -0.103 | 0.918 | 2.015 | |
P4 |
0.271
|
0.099
|
0.082
|
2.744**
|
0.006
|
1.904
| |
Control variables | Age |
-0.489
|
0.231
|
-0.088
|
-2.113*
|
0.035
|
3.709
|
Gen |
1.779
|
0.531
|
0.075
|
3.348**
|
0.001
|
1.062
| |
Edu | 0.055 | 0.216 | 0.011 | 0.253 | 0.801 | 3.69 | |
Rsd | -0.259 | 0.432 | -0.013 | -0.601 | 0.548 | 1.066 | |
R2 | 0.173 | ||||||
F | 28.368 | ||||||
P | <0.001 | ||||||
Dependent variable: NSSI |
Model | Unstandardized Coefficients | Standard Coefficie-nt | t | p | VIF | ||
---|---|---|---|---|---|---|---|
B | SE | β | |||||
(constant) | 12.421 | 2.587 | 4.801 | 0.000 | |||
Independent variable | CTQ | ||||||
C1
|
0.192
|
0.051
|
0.093
|
3.761
**
|
0.000
|
1.484
| |
C2
|
0.478
|
0.07
|
0.170
|
6.793
**
|
0.000
|
1.515
| |
C3 | 0.001 | 0.052 | 0.000 | 0.011 | 0.992 | 1.735 | |
C4
|
0.505
|
0.052
|
0.256
|
9.649**
|
0.000
|
1.699
| |
C5
|
0.334
|
0.075
|
0.099
|
4.476**
|
0.000
|
1.172
| |
Control variables |
Age
|
-0.803
|
0.225
|
-0.140
|
-3.575**
|
0.000
|
3.67
|
Gen | -0.901 | 0.513 | -0.037 | -1.758 | 0.079 | 1.039 | |
Education
|
-0.454
|
0.21
|
-0.084
|
-2.162*
|
0.031
|
3.659
| |
Resident
|
1.628
|
0.417
|
0.081
|
3.901**
|
0.000
|
1.048
| |
R2 | 0.265 | ||||||
F | 70.962 | ||||||
P | 0.000 | ||||||
Dependent variable: MPVS |