Screen Readers Skip to Content

Eliminating Sexual Violence Could Reduce Teen Mental Health Illnesses

Author: University College London
Author Contact:
Published: 5th Oct 2022 - Updated: 5th Jan 2023
Peer-Reviewed Publication: Yes
Additional References: LGBT Adolescents Publications

Summary: The prevalence of serious mental health problems among 17-year-olds could drop if they were not subjected to sexual violence, such as sexual assault and harassment.


Sexual Violence

Sexual violence is any sexual act or attempts to obtain a sexual act by violence or coercion, an act to traffic a person, or an act directed against a person's sexuality, regardless of the relationship to the victim. Sexual violence is widespread and considered one of the most traumatic, pervasive, and common human rights violations affecting women, men, and children throughout their lives. It can be devastating for individuals, families, and communities. Sexual violence remains highly stigmatized in all settings. Thus levels of disclosure of the assault vary between regions. In general, it is a widely underreported phenomenon; therefore, available data tend to underestimate the accurate scale of the problem.

Main Document

The prevalence of severe mental health problems among 17-year-olds could drop by as much as 16.8% for girls and 8.4% for boys if they were not subjected to sexual violence, such as sexual assault and harassment, according to estimates from UCL researchers.

The new research, published today in The Lancet Psychiatry, uses information from 9,971 young people born across the UK in 2000-02, who the Millennium Cohort Study is following. At the age of 17, just over 1,000 girls and 260 boys reported they had experienced sexual assault or an unwelcome sexual approach in the previous 12 months.

The researchers found that rates of two serious mental health problems - severe psychological distress and self-harm - were higher, on average, among victims than among those who did not report experiencing sexual assault or harassment at this age. This was true even when considering a wide range of other factors that affect teenagers' risk of experiencing sexual violence and mental ill health.

The authors calculated that in a hypothetical scenario* where sexual assault and harassment were eliminated, rates of self-harm among teenage girls might drop by 16.8% - from the current level of 28.9% in a world with these forms of sexual violence to 24% (so a five-percentage point reduction) in a world without. Additionally, high levels of psychological distress might drop by 14% (22.6% v 19.5%).

Among boys, the researchers anticipated rates of self-harm could drop by 8.4% (20.3% v 18.6%) and severe psychological distress by 3.7% (10.2% v 9.8%) if sexual assault and harassment were eradicated.

Co-author Professor Praveetha Patalay (UCL Centre for Longitudinal Studies and MRC Unit of Lifelong Health and Ageing at UCL) said:

"From these findings, we can calculate, for instance, that 4,900 in every 100,000 girls would be less likely to self-harm if sexual assault and harassment among this age group could be prevented. We must better understand the impact of sexual violence on mental health problems, particularly among girls, who are disproportionally more likely to experience both. Our findings suggest sexual assault and harassment could be an important driver of the gender gap in mental ill health that emerges in adolescence."

Overall, reports of sexual harassment were considerably more prevalent among the 17-year-olds surveyed than reports of sexual assault. Just over 19% of girls and 5% of boys reported someone had made 'an unwelcome sexual approach' to them in the past 12 months. By comparison, around 5% of girls and 1% of boys reported someone had assaulted them sexually in the past year.

The researchers compared the mental health of victims of sexual assault and harassment to other young people who were otherwise similar to them in terms of their personal and family characteristics, physical health, prior history of mental health problems, sexual development, and social relationships.

They also examined the link between experiences of sexual assault or harassment and attempted suicide. At some point before the age of 17, more than 1 in 10 girls and 1 in 25 boys reported harming themselves in an attempt to take their own life. These young people were more likely to have had recent experiences of sexual assault or harassment at age 17 than those who had never attempted suicide. However, it was not possible to know from the data whether their attempted suicide came before or after their experience of sexual violence.

Co-author Francesca Bentivegna (Department of Psychology and Human Development at the IOE, UCL's Faculty of Education and Society) said:

"There is a startling tolerance to sexual violence across society, with low conviction rates for perpetrators and victim-blaming still prevalent. This lack of serious concern for the effects of sexual violence may severely impact the mental health of victims. We must ensure law enforcement and the legal system provide stronger deterrents and consequences for perpetrators. There is an urgent need for better tailored and targeted support for victims, to try to mitigate the potential long-term mental health impacts from sexual assault and harassment."

Study Limitations

The authors noted several limitations of their study. Sexual violence is known to be underreported, and the authors recognize that teenagers with and without serious mental health problems may differ in their likelihood of reporting such experiences.

The authors could not investigate a wider range of types of sexual violence, such as the specific experience of online sexual harassment, as the data did not cover these. Information on perpetrators, severity, or frequency of sexual assault and harassment was also unavailable.

Finally, as this is an observational study, the authors noted the challenges in establishing cause and effect. The study uses very detailed data to account for a wide range of factors that may have influenced the link between experiences of sexual assault and harassment and serious mental health problems. However, it would be impossible to rule out the influence of every possible factor with certainty.


If you have been affected by the issues raised in this report and need support:

Study Methodology

Sexual violence was assessed using two yes/no questions from the participants' self-reported questionnaire at age 17: in the previous 12 months, had anyone made an unwelcome sexual approach to them or assaulted them sexually?

Measures of mental ill-health at age 17

About the Data

This study uses data from a nationally-representative sample of 9,971 young people (5,119 girls and 4,852 boys) born across the UK in 2000-02, who is part of the Millennium Cohort Study (MCS). MCS follows 19,517 people born at the turn of the millennium, building a uniquely detailed portrait of the children of the new century. The Centre manages the study for Longitudinal Studies at the IOE, UCL's Faculty of Education and Society. It is funded by the Economic and Social Research Council.

The impact of sexual violence in mid-adolescence on mental health: a UK population-based longitudinal study by Francesca Bentivegna and Prof Praveetha Patalay and funded by the Medical Research Council was published in The Lancet Psychiatry at 00:01 UK time on Wednesday 5 October 2022.

*Hypothetical scenario: In this study of observational data, researchers used attributable population fractions to estimate the impact of preventing sexual violence in this age group on their mental health outcomes, which is an estimation method that assumes a causal link between sexual violence and mental health outcomes (after demonstrating the strength of this assumption through the extensive controls, linear regressions, matched analysis and sensitivity checks).

References and Source(s):

Eliminating Sexual Violence Could Reduce Teen Mental Health Illnesses | University College London ( makes no warranties or representations in connection therewith. Content may have been edited for style, clarity or length.

Post to Twitter Add to Facebook

Latest LGBT Adolescents Publications

The above information is from our reference library of resources relating to LGBT Adolescents that includes:

For LGBTQ Youth Parental Support is Important thumbnail image.
A new study looks at parental social support and psychological control of depressive symptoms for LGBTQ youth in the United States.
Publish Date: 6th Mar 2023
Gender Dysphoria Rising in Youth - So is Professional Disagreement thumbnail image.
More adolescents with no history of gender dysphoria are presenting at gender clinics, especially in the US.
Publish Date: 24th Feb 2023
10% of Minors Seeking Abortion Must Pursue Court Approval, Many Are Denied thumbnail image.
U.S. states, including Colorado that have not banned abortion still do require those under age 18 to involve their parents before terminating a pregnancy.
Publish Date: 21st Jan 2023
LGBTQ Youth in Juvenile Correctional Facilities at High Risk for Suicide and Self-Harm thumbnail image.
A new study finds that LGBTQ youth are disproportionally represented in juvenile correctional facilities.
Publish Date: 29th Nov 2022 - Updated: 30th Nov 2022

1How Many Genders Are There?
Alphabetical list of gender identities.

2Transgender Reporting Guide
How to write about transgender people.

3Glossary of Sexuality Terms
Definitions of sexual terms & acronyms.

4Glossary of Sexual Identities
Definitions of gender related terms.

5Am I Gay? Questions to Ask
Think you may be gay or bisexual?

• Submissions: Send us your coming events and LGBTQ related news stories.

• Report Errors: Please report outdated or inaccurate information to us.

• (APA): University College London. (2022, October 5). Eliminating Sexual Violence Could Reduce Teen Mental Health Illnesses. Retrieved April 19, 2024 from

• Permalink: <a href="">Eliminating Sexual Violence Could Reduce Teen Mental Health Illnesses</a>