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Self-harm is when somebody hurts their body as a way of coping with difficult feelings. Self-harm is becoming increasingly common in young people, particularly in adolescent females. The rise in self-harm has been linked to increasing use of social media and internet technology among young people. However, the evidence is limited to associations with poorer mental health outcomes rather than identifying particular aspects of using these technologies that can negatively impact on mental health.
This study aims to investigate how the use of social media and a smartphone may increase the risk of self-harm in young people by exploring changes in usage in the period leading up to an episode of self-harm. The information from this study will allow us to understand whether there are certain behaviours that are more likely to occur before an episode of self-harm. This will inform new strategies to identify and provide support to vulnerable young people. For example, linking young people with crisis support or empowering young people to make changes, manage their own risks and build resilience.
This study will recruit young people aged 13-25 years old who have accessed mental health services provided by an NHS Trust in South-East London. Young people will be invited to provide information on their mental health and social media and smartphone use over a period of six months.
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| Measure | Description | Time Frame |
|---|---|---|
| Self-harm event | Self-reported and clinician-reported self-harm events | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Sleep disturbance symptoms | Symptoms of sleep disturbance measured using the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance Short Form V1.0 4a / Pediatric Sleep Disturbance Short Form V1.0 4a. Scores range between 4-20, with higher scores indicative of possible sleep disturbance. | 6 months |
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Inclusion criteria
Exclusion criteria
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Clinical sample
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| Name | Affiliation | Role |
|---|---|---|
| Rina Dutta | King's College London | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| South London and Maudsley NHS Foundation Trust | London | United Kingdom |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36725102 | Background | Bye A, Carter B, Leightley D, Trevillion K, Liakata M, Branthonne-Foster S, Williamson G, Zenasni Z, Dutta R. Observational prospective study of social media, smartphone use and self-harm in a clinical sample of young people: study protocol. BMJ Open. 2023 Feb 1;13(2):e069748. doi: 10.1136/bmjopen-2022-069748. | |
| 38776261 | Result |
| Label | URL |
|---|---|
| Related Info | View source |
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Data will not be made available to other researchers.
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| ID | Term |
|---|---|
| D016728 | Self-Injurious Behavior |
| D000092862 | Psychological Well-Being |
| ID | Term |
|---|---|
| D001526 | Behavioral Symptoms |
| D001519 | Behavior |
| D010549 | Personal Satisfaction |
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| Depression symptoms |
Symptoms of depression measured using the Patient Health Questionnaire. Scores range between 0-27, with higher scores indicative of possible depression. |
| 6 months |
| Anxiety symptoms | Symptoms of anxiety measured using the Generalized Anxiety Disorder Scale. Scores range between 0-21, with higher scores indicative of possible generalised anxiety disorder. | 6 months |
| Loneliness symptoms | Symptoms of loneliness measured using the Three-Item Loneliness Scale. Scores range between 3-9, with higher scores indicative of possible loneliness. | 6 months |
| Experiences of being bullied | Experiences of being bullied measured using an Eight-Item Bullying Checklist derived from the Revised Olweus Bully/Victim Questionnaire. Scores range between 8-40, with higher scores indicative of more experiences of being bullied. | 6 months |
| Bye A, Carter B, Leightley D, Trevillion K, Liakata M, Branthonne-Foster S, Cross S, Zenasni Z, Carr E, Williamson G, Vega Viyuela A, Dutta R. Cohort profile: The Social media, smartphone use and Self-harm in Young People (3S-YP) study-A prospective, observational cohort study of young people in contact with mental health services. PLoS One. 2024 May 22;19(5):e0299059. doi: 10.1371/journal.pone.0299059. eCollection 2024. |
| 41554580 | Derived | Bye A, Trevillion K, Wilson-Lemoine E, Leightley D, Carter B, Liakata M, Hopper J, Dutta R. Visual content and thematic analyses of images shared on social media before and after episodes of self-harm in a UK clinical youth sample. BMJ Open. 2026 Jan 19;16(1):e103456. doi: 10.1136/bmjopen-2025-103456. |
| 40307751 | Derived | Bye A, Wilson-Lemoine E, Trevillion K, Carter B, Dutta R. Factors that affect clinical youth engagement in digital mental health research: a qualitative sub-study nested within a prospective cohort study. BMC Med Res Methodol. 2025 Apr 30;25(1):118. doi: 10.1186/s12874-025-02571-9. |