Background
Factors related to bullying perpetration
Individual factors related to bullying perpetration
Psychological factors related to bullying perpetration
Social factors related to bullying perpetration
Rationale and purpose of the study
Methods
Participants
Sample size calculation
Questionnaire
The Illinois bully scale
The Liebowitz social anxiety scale (LSAS)
The internet addiction test (IAT)
The adolescent depression rating scale (ADRS)
Child abuse self-report scale (CASRS)
Translation procedure
Statistical analysis
Results
Frequency (%) | |
Gender | |
Male | 844 (46.7%) |
Female | 963 (53.3%) |
Parents status | |
Living together | 1581(88.1%) |
Separate | 213 (11.9%) |
Smoking status | |
Yes | 468 (25.9%) |
No | 1342 (74.1%) |
Mean ± SD | |
Age (years) | 15.42 ± 1.14 |
Body Mass Index (kg/m2) | 21.95 ± 4.21 |
Household crowding index | 1.01 ± 0.64 |
Scales description
Mean ± SD | Median | Minimum | Maximum | Range | |
---|---|---|---|---|---|
Bullying score | 8.23 ± 8.03 | 6.00 | 0 | 27 | 0–36 |
Depression score | 4.64 ± 2.10 | 4.68 | 0 | 10 | 0–10 |
Child psychological abuse scale | 10.63 ± 11.49 | 7.00 | 0 | 42 | 0–42 |
Child abuse neglect scale | 13.91 ± 10.70 | 12.00 | 0 | 33 | 0–33 |
Child abuse physical scale | 5.74 ± 6.70 | 2.00 | 0 | 24 | 0–24 |
Child abuse sexual scale | 2.79 ± 4.01 | 0 | 0 | 15 | 0–15 |
Liebowitz fear score | 26.17 ± 16.15 | 27.00 | 0 | 72 | 0–72 |
Liebowitz avoidance score | 30.95 ± 16.94 | 33.00 | 0 | 72 | 0–72 |
Internet addiction scale | 39.42 ± 18.08 | 40.00 | 0 | 100 | 0–100 |
Bivariate analysis
Bullying scale | P -value | |
Mean ± SD | ||
Parents status | ||
Living together | 7.63 ± 7.90 | < 0.001 |
Separated | 12.55 ± 7.53 | |
Smoking status | ||
Yes | 10.56 ± 7.49 | < 0.001 |
No | 7.44 ± 8.06 | |
Correlation coefficient | P -value | |
Age | −0.045 | 0.067 |
Liebowitz- fear score | 0.375 | < 0.001 |
Liebowitz- avoidance score | 0.226 | < 0.001 |
Internet addiction | 0.266 | < 0.001 |
House crowding index | −0.068 | 0.005 |
Depression score | 0.146 | < 0.001 |
Psychological abuse scale | 0.424 | < 0.001 |
Child abuse neglect scale | 0.259 | < 0.001 |
Child abuse physical scale | 0.387 | < 0.001 |
Child abuse sexual scale | 0.350 | < 0.001 |
Multivariable analysis
Unstandardized Beta | Standardized Beta | p-value | Confidence Interval | ||
---|---|---|---|---|---|
Lower | Upper | ||||
Child psychological abuse | 0.129 | 0.175 | < 0.001 | 0.083 | 0.176 |
Child sexual abuse | 0.269 | 0.125 | < 0.001 | 0.128 | 0.411 |
Liebowitz fear score | 0.107 | 0.218 | < 0.001 | 0.075 | 0.140 |
Internet addiction | 0.077 | 0.174 | < 0.001 | 0.057 | 0.097 |
Child abuse neglect scale | 0.086 | 0.106 | < 0.001 | 0.051 | 0.120 |
Parents status (separated vs togethera) | 1.605 | 0.068 | 0.003 | 0.561 | 2.650 |
Child physical abuse | 0.135 | 0.105 | 0.008 | 0.036 | 0.235 |
Liebowitz avoidance score | −0.032 | −0.067 | 0.033 | −0.062 | −0.003 |