Purpose: To explore whether sexual harassment experiences are more common among adolescents reporting romantic and erotic interests in the same sex and both sexes, when sociodemographic and mental health confounding are controlled for, and whether the associations are similar in both sexes and in different phases of adolescence. Methods: A cross-sectional survey among a nationally representative dataset of 25,147 boys and 25,257 girls in comprehensive school, and 33,231 boys and 36,765 girls in upper secondary education. Self-reports of experiences of sexual harassment, and emotional (depression) and behavioral (delinquency) symptoms were used. Results: All associations between sexual minority status and harassment diminished clearly when mental disorder dimensions were controlled for. In the comprehensive school sample (mean age 15.4 years), sexual harassment experiences were 4-7-fold more common among boys, and 1.5-3-fold among girls, with same-sex/both-sexes interest, compared to those interested exclusively in the opposite sex. In the upper secondary education sample (mean age 17.4 years), among boys, sexual harassment was reported 3-6-fold more commonly by those not exclusively heterosexually interested. Among older girls, a slight increase in sexual harassment experiences was seen among those interested in both sexes. Conclusions: Sexual harassment experiences are associated with sexual minority status, particularly among boys. Confounding by mental disorders needs to be accounted for when studying sexual minority status and sexual harassment.

Objective: Despite recent research demonstrating associations between violence and depression in adults, links in adolescents are uncertain. This study aims to assess the longitudinal associations between young people's depression and later violent outcomes. Method: We used data from three cohorts with different measurements of depression exposures and subsequent violent outcomes. In a Dutch community cohort Research on Adolescent Development And Relationships (RADAR; N = 623) and a population-based British birth cohort Avon Longitudinal Study of Parents and Children (ALSPAC; N = 4,030), we examined the longitudinal links between adolescent depressive symptoms and violent behaviors from age 13 to 17 years. In a total Finnish birth cohort (FBC 1987; N = 57,526), we estimated risk of violent convictions in individuals clinically diagnosed with depression from age 15 to 27 years. Results: During a mean follow-up period of 4 years, the adjusted odds ratio (aOR) of violent behaviors per unit of increase in depressive symptoms was 1.7 (95% CI = 1.2-2.5) in the Dutch RADAR community sample and 1.8 (95% CI = 1.4-2.3) in the British ALSPAC birth cohort. In the FBC 1987 cohort, the aOR of violent convictions was 2.1 (95% CI = 1.7-2.7) among individuals with a depression diagnosis compared with general population controls without depression. All risk estimates were adjusted for family socioeconomic status and previous violence. Conclusion: Consistent findings across three longitudinal studies suggest that clinical guidelines should consider recommending risk assessment for violence in young people with depression. The benefits of targeting risk management in subgroups by gender need further investigation.

Background: Sexuality is a major facet of development during adolescence. Apace with normal sexual development, sexual experiences become more common and intimate. Recent research reports mixed results as to whether this is the case among transgender identifying adolescents. Recent research also suggests that trans youth experience negative sexual experiences (such as dating violence and sexual harassment) more often than their cisgender identifying peers. However, most studies have had clinical or selected samples. Objective: The aim of this study is to compare the normative as well as negative sexual experiences of trans youth with their cisgender peers in the general population. Method: Our study included 1386 pupils of the ninth year of comprehensive school in Finland, mean age (SD) 15.59 (0.41) years. We compared sexual experiences, sexual harassment and dating violence among trans youth and their cisgender identifying peers. Distributions of the outcome variables were calculated among the whole sample and by sex. Next, multivariate associations were studied using logistic regression adjusting for age, sex, honesty of responding and depression. Odds Ratios (OR) with 95% confidence intervals (CI) are given. Results: After adjusting for age, sex, honesty of responding and ultimately for depression, normative sexual experiences of trans youth did not differ systematically from those of the mainstream, cisgender identifying youth. After adjusting for sex, age and honesty, transgender youth had increased Odds Ratios for experiences of sexual coercion and dating violence perpetration. In the final models however, no statistically significant differences were detected in the negative sexual experiences between transgender and cisgender youth. Conclusion: Transgender identifying adolescents presented neither with delayed nor with excessively advanced sexual experiences. However, transgender youth seem to be more susceptible to subjection to sexual coercion and, unexpectedly, dating violence perpetration than their cisgender peers. However, these associations may in fact relate more closely to depression, a prevalent phenomenon among trans youth, than transgender identity itself.