Background
Methods
Data source
Study participants and data collection
Measures
Self-directed violence
Depressive symptoms
Social pressure
Bullying
Social support
Statistics
Results
Females n (%) | Males n (%) | p-value* | |
---|---|---|---|
School level | |||
Junior high school | 4282 (53.3) | 4426 (56.8) | < 0.001 |
High school | 3754 (46.7) | 3361 (43.2) | |
Parental education | |||
High, both parents | 3947 (51.0) | 3775 (51.7) | 0.446 |
Family economy | |||
Good family economy, all the time | 3447 (42.6) | 3655 (47.6) | < 0.001 |
High pressure | |||
Body/looks | 3009 (38.0) | 671 (9.4) | < 0.001 |
School performance | 3756 (47.3) | 1555 (21.9) | < 0.001 |
Sports performance | 1791 (22.8) | 900 (12.7) | < 0.001 |
Followers/likes on social media | 716 (9.0) | 163 (2.3) | < 0.001 |
Bullying | |||
Bullied others, ≥ once/week | 94 (1.2) | 221 (2.9) | < 0.001 |
Bullied by others, ≥ once/week | 343 (4.2) | 332 (4.4) | 0.656 |
Bullied by others online, ≥ once/week | 159 (2.0) | 179 (2.3) | 0.090 |
Support by friends | |||
Friends to trust | 5057 (61.8) | 4714 (60.9) | 0.267 |
Friends available after school | 3874 (47.3) | 4042 (52.2) | < 0.001 |
Friend at school | 5617 (68.6) | 5815 (75.1) | < 0.001 |
Teacher support | |||
High support by teacher | 2900 (35.6) | 3225 (41.9) | < 0.001 |
Parental support | |||
High parental support | 4384 (54.0) | 4101 (53.4) | 0.483 |
Depression | |||
Symptoms of depression | 678 (8.7) | 212 (3.0) | < 0.001 |
Self-harm | |||
Yes, once or more | 6565 (25.2) | 740 (11.0) | < 0.001 |
Suicide thoughts | |||
Yes, once or more | 2401 (31.6) | 1303 (19.4) | < 0.001 |
Suicide attempts | |||
Yes, once or more | 463 (6.1) | 250 (3.7) | < 0.001 |
Confirmatory factor analysis
Structural equation modelling
Direct effects
Variables | Self-harm | ||
---|---|---|---|
β | 95% CI | p-value | |
Pressure, high | 0.07 | 0.04/0.10 | < 0.001 |
Bullied others, low | -0.03 | -0.05/-0.01 | 0.012 |
Bullied by others, low | -0.09 | -0.11/-0.06 | < 0.001 |
Bullied online, low | -0.07 | -0.10/-0.05 | < 0.001 |
Parental support, low | 0.12 | 0.10/0.14 | < 0.001 |
Depressive symptoms, high | 0.32 | 0.29/0.34 | < 0.001 |
Suicide thoughts | |||
Pressure, high | 0.05 | 0.02/0.08 | 0.001 |
Bullied others, low | -0.06 | -0.08/-0.04 | < 0.001 |
Bullied by others, low | -0.04 | -0.07/-0.02 | 0.001 |
Bullied online, low | -0.05 | -0.08/-0.03 | < 0.001 |
Friends support, low | 0.07 | 0.04/0.10 | < 0.001 |
Parental support, low | 0.13 | 0.11/0.15 | < 0.001 |
Depressive symptoms, high | 0.41 | 0.39/0.44 | < 0.001 |
Depressive symptoms | |||
Family economy, low | 0.11 | 0.09/0.13 | < 0.001 |
Parental education, high | -0.05 | -0.07/-0.03 | < 0.001 |
Pressure, high | 0.44 | 0.42/0.47 | < 0.001 |
Bullied by others, low | -0.04 | -0.07/-0.02 | 0.001 |
Bullied online, low | -0.04 | -0.07/-0.02 | < 0.001 |
Friends support, low | 0.15 | 0.12/0.18 | < 0.001 |
Teacher support, low | 0.14 | 0.12/0.16 | < 0.001 |
Parental support, low | 0.12 | 0.09/0.14 | < 0.001 |
Bullied others | |||
Family economy, low | -0.05 | -0.07/-0.02 | < 0.001 |
Teacher support, low | -0.12 | -0.14/-0.10 | < 0.001 |
Parental support, low | -0.07 | -0.10/-0.05 | < 0.001 |
Bullied by others | |||
Family economy, low | -0.04 | -0.06/-0.01 | 0.004 |
Friends support, low | -0.37 | -0.39/-0.34 | < 0.001 |
Teacher support, low | -0.09 | -0.11/-0.06 | < 0.001 |
Parental support, low | -0.03 | -0.06/-0.01 | 0.013 |
Bullied online | |||
Family economy, low | -0.05 | -0.08/-0.03 | < 0.001 |
Friends support, low | -0.33 | -0.36/-0.30 | < 0.001 |
Teacher support, low | -0.10 | -0.13/-0.08 | < 0.001 |
Parental support, low | -0.04 | -0.06/-0.01 | 0.003 |
Pressure | |||
Family economy, low | 0.08 | 0.05/0.01 | < 0.001 |
Parental education, high | 0.03 | 0.01/0.06 | 0.030 |
Friends support, low | 0.21 | 0.17/0.24 | < 0.001 |
Teacher support, low | 0.25 | 0.22/0.27 | < 0.001 |
Parental support, low | 0.07 | 0.04/0.10 | < 0.001 |
Parental support | |||
Family economy, low | 0.26 | 0.24/0.29 | < 0.001 |
Parental education, high | -0.08 | -0.11/-0.06 | < 0.001 |
Variables | Self-harm | ||
---|---|---|---|
β | 95% CI | p-value | |
Bullied by others, low | -0.05 | -0.08/-0.03 | < 0.001 |
Bullied online, low | -0.10 | -0.13/-0.07 | < 0.001 |
Friends support, low | 0.06 | 0.02/0.09 | 0.001 |
Parental support, low | 0.05 | 0.03/0.08 | < 0.001 |
Depressive symptoms, high | 0.26 | 0.23/0.28 | < 0.001 |
Suicide thoughts | |||
Bullied by others, low | -0.05 | -0.08/-0.03 | < 0.001 |
Bullied online, low | -0.07 | -0.09/-0.04 | < 0.001 |
Friends support, low | 0.07 | 0.03/0.10 | < 0.001 |
Parental support, low | 0.08 | 0.06/0.10 | < 0.001 |
Depressive symptoms, high | 0.46 | 0.44/0.48 | < 0.001 |
Depressive symptoms | |||
Family economy, low | 0.07 | 0.05/0.09 | < 0.001 |
Parental education, high | -0.05 | -0.07/-0.03 | < 0.001 |
Pressure, high | 0.44 | 0.42/0.47 | < 0.001 |
Bullied others, low | -0.04 | -0.06/-0.10 | 0.005 |
Bullied by others, low | -0.04 | -0.07/-0.01 | 0.004 |
Bullied online, low | -0.07 | -0.09/-0.04 | < 0.001 |
Friends support, low | 0.17 | 0.14/0.20 | < 0.001 |
Teacher support, low | 0.11 | 0.09/0.14 | < 0.001 |
Parental support, low | 0.11 | 0.09/0.13 | < 0.001 |
Bullied others | |||
Family economy, low | -0.07 | -0.09/-0.04 | < 0.001 |
Teacher support, low | -0.14 | -0.17/-0.11 | < 0.001 |
Parental support, low | -0.06 | -0.08/-0.03 | 0.013 |
Bullied by others | |||
Family economy, low | -0.04 | -0.06/-0.01 | 0.004 |
Parental education, high | -0.03 | -0.05/-0.01 | 0.024 |
Friends support, low | -0.25 | -0.28/-0.22 | < 0.001 |
Teacher support, low | -0.09 | -0.12/-0.07 | < 0.001 |
Parental support, low | -0.05 | -0.08/-0.02 | < 0.001 |
Bullied online | |||
Friends support, low | -0.29 | -0.32/-0.26 | < 0.001 |
Teacher support, low | -0.10 | -0.12/-0.07 | < 0.001 |
Parental support, low | -0.07 | -0.09/-0.04 | 0.003 |
Pressure | |||
Family economy, low | 0.05 | 0.02/0.08 | 0.002 |
Parental education, high | 0.05 | 0.02/0.08 | 0.002 |
Friends support, low | 0.23 | 0.19/0.26 | < 0.001 |
Teacher support, low | 0.25 | 0.22/0.27 | < 0.001 |
Parental support | |||
Family economy, low | 0.23 | 0.20/0.25 | < 0.001 |
Parental education, high | -0.05 | -0.07/-0.02 | < 0.001 |