Cohort profile: The Youth and Mental Health Study (YAMHS) - a longitudinal study of the period from adolescence to adulthood

Health behavior, health, and socioeconomic background in adolescence as risk factors for traumatic brain injuries: A longitudinal study

INTRODUCTION

Traumatic brain injuries (TBI) are a considerable health burden on adolescents and young adults. This study aims to assess the influence of health compromising behavior, poor perceived health, poor school success, and low family socioeconomic background during adolescence on subsequent TBI in a large cohort of Finnish adolescents with an average 25-year follow-up.

MATERIALS AND METHODS

Baseline Finnish Adolescent Health and Lifestyle survey data gathered biennially (1981-1997) was linked with the diagnosis of subsequent TBI from the Finnish Care Register for Health Care. A structural equation modeling (SEM) was used to analyze the associations between health behavior, poor perceived health, poor school success, and low family socioeconomic background during adolescence on subsequent TBI.

RESULTS

Total of 41 336 persons were included in the analyses. During the follow-up, 1 459 (3.5 %) TBIs occurred. Men were more likely to suffer a TBI. The mean follow-up time was 25.3 years (SD 4.0) and the mean age at the time of TBI was 32.1 years (SD 7.7). Health compromising behavior and not living with both parents in adolescence were associated with the increased risk of TBI. Also, poor perceived health and stress symptoms increased the risk of TBI. Low family socioeconomic status (SES) was only indirectly associated with TBI trough health compromising behavior.

CONCLUSION

The main finding was that health compromising behavior was associated with TBI, and low family SES was associated with TBI through health compromising behavior in later life. Poor perceived health, stress symptoms, and not living with both parents in adolescence increased the risk of TBI, too. Our findings suggest that adolescents who are at risk of drifting into health compromising behavior and report stress symptoms have an increased risk of TBI in later life.

Protective factors for suicidal ideation and suicide attempts in adolescence: a longitudinal population-based cohort study examining sex differences

BACKGROUND

Adolescence is a critical period with elevated vulnerability to suicidality. Despite the importance of protective factors in reducing suicidal ideation (SI) and suicide attempts (SA), research in this area remains limited. This study investigated the associations between protective factors in early adolescence and the subsequent outcomes of SI and SA a year later, while also examining sex differences in these associations.

METHODS

This study utilized data from a representative sample at two timepoints, T1 (N = 2464, 50.8% females, mean age = 13.7, SD = 0.6) in 1998 and T2 (N = 2432, 50.4% females, mean age = 14.9, SD = 0.6) one year later, collected as part of the longitudinal Youth and Mental Health Study (YAMHS) in Norway. Individual, social and environmental protective factors were identified based on prior research and theoretical frameworks. We used linear (or ordinal logistic) regression analyses with SI (or SA) as dependent variable, and one protective factor, sex and their interaction as covariates.

RESULTS

Positive self-perceptions (T1) were significantly associated with reduced SI and SA one year later (T2) for both sexes. Specifically, self-worth was more strongly associated with reduced SI in females (B = -0.16, 95% CI: -0.20 to -0.12, p <.001) than males (B = -0.08, 95% CI: -0.12 to -0.04, p <.001). The interaction between sex and social competence influenced the likelihood of SA, with males (OR = 0.24, 95% CI: 0.13 to 0.42, p <.001) showing a greater reduction than females (OR = 0.53, 95% CI: 0.35 to 0.80, p =.009), although this association only showed a trend towards significance (p =.083). Higher physical activity and school connectedness/wellbeing were associated with lower SI, and school connectedness/wellbeing to lower SA, with no sex differences. No significant associations were found between task-oriented coping, attachment, family functioning or socio-economic status and SI or SA.

CONCLUSIONS

Fostering positive self-perception, physical activity, and school connectedness/wellbeing is important for adolescent suicide prevention, as these factors contribute to reducing suicidality. Sex differences were observed in the associations between self-worth and SI, as well as social competence and SA. Future research should explore additional protective factors across sex and gender groups.

What Emotion Regulation Strategies are Associated with a General Psychopathology Factor (p) in Adolescence? Identifying Possible Transdiagnostic Targets for Intervention

Mental health problems in adolescence are increasing and there is an urgent call for transdiagnostic interventions, as most adolescents experience problems across multiple domains. Research has identified a general psychopathology factor (p) capturing the shared variance across mental health problems. In parallel, there is empirical support for the transdiagnostic nature of emotion regulation. In the current study, we explore the associations between p and emotion regulation strategies to identify which strategies may be promising targets for intervention. Data from the population-based Youth and Mental Health Study (YAMHS) (N = 2,464, mean age 13.7 years, SD 0.6) was used. The fit of different structural models of emotion regulation and psychopathology were compared, and latent factors from the final models were included in multiple regression analyses to explore the associations between p and emotion regulation strategies. A bifactor exploratory structural equation model (B-ESEM) showed best fit for modelling p. For emotion regulation strategies, an ESEM model showed best fit, including Rumination, Reactive Impulsivity, Distraction, Non-Acceptance, Problem Solving, Social Support, and Proactive Behavior. Results showed that a higher score on p was predicted by higher scores on the emotion regulation strategies Rumination (β = .38, p < .001) and Reactive Impulsivity (β = .35, p < .001), and lower scores on Problem Solving (β = -.15, p < .001). The results indicate that Rumination and Reactive Impulsivity have the strongest associations with p and may be promising targets for mental health interventions for adolescents.

Knowledge, Attitude, and Stigma Among Adolescents: Effect of Mental Health Awareness and Destigmatisation (MHAD) Program

BACKGROUND

Stigma against mental health problems is a common issue for adolescents aged 14-18 years. However, comprehensive programs that simultaneously address awareness and stigma reduction tailored to the specific needs of this age group are lacking.

METHOD

This study investigated the effectiveness of the Mental Health Awareness and Destigmatisation Program (MHAD) in reducing stigma and improving knowledge and attitudes towards peers with mental health problems. A quasi-experimental pre-post design was employed among adolescents aged 14-18 years from an educational institution in Bangalore. After excluding those with high baseline mental health symptoms (PSC-17 > 20), a preassessment was conducted on adolescents' knowledge, attitude, and stigma (n = 52) using the Mental Health Knowledge Schedule, Self-structured Case Vignettes, and Peer Mental Health Stigmatization Scale. After completing the 6-week program, three participants were excluded from the post-assessment, as their attendance was less than 50%. A total of 49 (mean age = 16 years) adolescents were included in the post-assessment.

RESULTS

The paired sample t-test revealed significant improvements in all stigma scores. The Wilcoxon signed-rank test indicated a significant improvement in Recognition of Mental Illness scores.

CONCLUSION

Findings showed that MHAD, an education-based program, was effective in reducing adolescents' stigma towards peers with mental health problems and improving their overall recognition of mental health symptoms. Research across larger adolescent populations is essential to enhance these interventions' long-term impact and sustainability. By closely monitoring and expanding research efforts, we can gain deeper insights into how these programs foster self-awareness, a crucial factor in recognizing mental health needs, challenging stigma, and promoting help-seeking behaviors among adolescents.

Protective factors for suicidal ideation: a prospective study from adolescence to adulthood

Adolescent suicidality is associated with negative outcomes in adulthood. Suicide prevention has traditionally focused on identifying risk factors, yet suicide rates have remained stable. With suicidality often going undetected-especially suicidal ideation, further knowledge about protective factors is needed. The main objective of this study was to investigate potential protective factors for suicidal ideation from adolescence to adulthood. The study employed longitudinal population survey data, "Youth and Mental Health Study" consisting of self-reports at two-time points (mean age 14.9, SD = 0.6 and 27.2, SD = 0.6) (n = 2423 and n = 1198). Protective factors (at individual, social and environmental level) were selected based on a priori knowledge. Internal consistency of scales was analyzed using McDonald's omega. We used a linear mixed model with suicidal ideation as the dependent variable, time-points, a protective factor variable and their interaction as covariates, and individual participant as random effects. We adjusted for sex and also conducted separate analyses for males and females. The Benjamini-Hochberg procedure was used to adjust p-values for multiple hypotheses. Investigated protective factors were associated with temporal change in suicidal ideation (significant interactions). For both sexes, less emotion-orientated coping, higher self-perception scores, greater levels of physical activity and higher school wellbeing/connectedness were protective factors for suicidal ideations. Secure attachment and higher family function were protective factors for females only. The effects in adolescence were mostly maintained in adulthood. In this study, several protective factors for suicidal ideation persisted into adulthood, with distinct differences between males and females.

The impact of past childhood adversity and recent life events on neural responses during fear conditioning

BACKGROUND AND PURPOSE

Many studies have shown that exposure to life events can have a negative impact on mental health. Life events like the death of a spouse or the birth of a child pose a challenge and require temporal or permanent adjustments. Meta-analyses on brain stress responses found bilateral anterior insula activation in response to acute stress. Fear conditioning is assumed a crucial mechanism for the development of anxiety disorders associated with increased activation in the bilateral amygdala. Empirical evidence is lacking regarding the relationship of exposure to recent life events and past childhood adversity with neural processing during fear conditioning.

METHODS

In the present study, we analyzed data from 103 young, healthy participants. Multiple linear regressions were performed on functional magnetic resonance imaging activation during fear conditioning with the Life Events Scale for Students and the Childhood Trauma questionnaire included as covariates in two separate models.

RESULTS

We found a positive relationship between the number of life events in the last year and left amygdala activation to the conditioned stimulus. A second finding was a positive relationship between childhood adversity and right anterior insula response to the unconditioned stimulus.

CONCLUSIONS

Many studies have shown increased amygdala activity after stressful life events. In addition, the anterior insula is activated during acute stress. The present study points to stressor-induced increased salience processing during fear conditioning. We suggest that this could be a potential mechanism for resilience versus mental illness.

How does subjective social status at school at the age of 15 affect the risk of depressive symptoms at the ages of 18, 21, and 28? A longitudinal study

BACKGROUND

Young people's mental health is declining. Depression is a public disease which is increasing internationally, and in Denmark an increase is seen especially among young people. Objective social status is known to be associated with mental health and depression, but little is known about the association between adolescent subjective social status at school and depressive symptoms during young adulthood. The aim was to investigate the association between 15-year-old's subjective social status at school and the development of depressive symptoms at age 18, 21 and 28.

METHODS

The study is a longitudinal study using questionnaire data from The West Jutland Cohort Study Denmark. The study population consisted of adolescents who at baseline, at age 15 (2004), had answered questions about their subjective social status in school using the MacArthur scale-youth version. Answers were categorised into low, medium, and high subjective social status. Outcome data about depressive symptoms was collected at age 18 (2007), age 21 (2010) and age 28 (2017) using the CES-DC and CES-D scales, dichotomised into few or many depressive symptoms. The associations between subjective social status at school at age 15 and depressive symptoms at ages 18, 21 and 28 were analysed using multiple logistic regression.

RESULTS

Statistically significant associations were found between low subjective social status at school at age 15 and the odds of many depressive symptoms at all three age points in young adulthood. When adjusting for co-variates the odds ratio for many depressive symptoms at age 18 was OR 3.34 [1.84;6.08], at age 21 OR 3.31 [1.75;6.26] and at age 28 OR 2.12 [1.13;3.97].

CONCLUSIONS

The subjective social status of 15-year-olds is associated with depressive symptoms at ages 18, 21 and 28, respectively. It seems that subjective social status at age 15 is of greatest importance for the occurrence of depressive symptoms in the short run, and that the impact attenuates over time.

"We're not educated on that enough, and we really should be": adolescents' views of mental health service education

PURPOSE

Despite the susceptibility to the experience of mental distress during adolescence, this population often demonstrate poor help-seeking behaviours. Efforts have been made by schools to address adolescents' knowledge around mental health; less focus has been given to addressing their knowledge of mental health services and avenues for help-seeking. This study aimed to explore adolescents' views of mental health services education.

METHODS

An interpretive descriptive design was adopted. Thirty adolescents from Ireland participated in individual interviews. Data were analysed using content analysis.

TWO THEMES WERE IDENTIFIED

Recognizing Gaps in Knowledge about Mental Health Service Education, and Enhancing Mental Health Service Education for Young People. Participants reported gaps in their knowledge about mental health services and were uncertain how to access help. Current strategies (e.g., print media) were considered tokenistic and ineffective; instead, multimedia (film/TV) approaches were recommended.

RESULTS

Two themes were identified: Recognizing Gaps in Knowledge about Mental HealthService Education, and Enhancing Mental Health Service Education for YoungPeople. Participants reported gaps in their knowledge about mental healthservices and were uncertain how to access help. Current strategies (e.g., print media) were considered tokenistic and ineffective; instead, multimedia (film/TV) approaches were recommended.

CONCLUSIONS

Current mental health education programmes need to expand their focus beyond social/emotional well-being, providing adolescents with the knowledge they need to access appropriate supports. Considering traditional print media was viewed as ineffective, while film/TV had an influence on perceptions of mental health services, a multimedia approach to education may be an effective way of engaging this population.

School-based Evaluation Advancing Response for Child Health (SEARCH): a mixed longitudinal cohort study from multifaceted perspectives in Jiangsu, China

BACKGROUND

Schools play a crucial role in providing mental health services to children and adolescents. However, the vastness of the student population and mental health workforce shortage in China severely limit the capacity for adequate care access and delivery.

OBJECTIVE

We propose a large, mixed longitudinal cohort study, 'School-based Evaluation Advancing Response for Child Health (SEARCH)', aimed at addressing the increasing demand from individuals seeking access to mental healthcare services.

METHODS

SEARCH uses a digital platform and school-based protocol for comprehensive assessment of the mental well-being of Chinese students in grades 4-12 incorporating individual, caregiver and teacher input, including capture of facial and acoustic features and response times, as well as mental well-being assessments.

FINDINGS

We completed first wave data collection from nearly 20 000 participants (students, caregivers and teachers) at 11 schools, grades 4-12, in 3 cities in Jiangsu province in Southeast China from September 2022 to February 2023. We intend to conduct follow-up assessments for grades 4 through 12 at the 11 school sites every 6 months for 5 years.

CONCLUSIONS

SEARCH will provide important insight into the developmental trajectory of mental well-being in Chinese children and adolescents. The study protocol does not simply focus on student self-report and incorporates caregiver and teacher viewpoints as well. It also collects objective indicators that may facilitate development of screening tools.

CLINICAL IMPLICATIONS

We believe future study findings will guide the development and implementation of school-based mental healthcare initiatives to improve the well-being of children and adolescents.

The mediating effects of personality traits on the relationship of youth conduct problems and mood disorders with adulthood suicidality

Identifying the relevant factors for suicidality in individuals with conduct problems is a public health concern, especially if they were under the influence of mood disorders later in life. This study investigates the relationship between youth conduct problems and mood disorders and adulthood suicidality, and to further explore the mediating effects of personality on this relationship. A retrospective cohort study was administered to 308 individuals aged 20-65 years, with or without mood disorders diagnosed by psychiatrists. The Composite International Diagnosis Interview was used to evaluate conduct problems in youth and suicidality (i.e., suicide plan and suicide attempt) in the past year. Personality traits were assessed using Eysenck Personality Questionnaire-Revised for extraversion and neuroticism. Multiple-mediator analysis was used to investigate the mediation effects of personality traits on the relationship between conduct problems and suicidality. The average age of enrolled participants was 31.6 years, and 42.5% of them were female. 39.2% reported suicidality and 43.2% reported conduct problems in youth. Participants who were diagnosed with mood disorders (p < 0.001) and reported having conduct problems (p = 0.004) were associated with high suicidality. Multiple-mediator analysis showed that conduct problems in youth increased the risk of adulthood suicidality through the indirect effects of higher neuroticism (suicide plan: OR = 1.30, BCA 95% CI = 1.04-1.83; suicide attempt: OR = 1.27, BCA 95% CI = 1.05-1.66). Neuroticism mediates the association between youth conduct problems and adulthood suicidality. This finding raises our attention to assess personality traits in individuals with youth conduct problems for designing proper intervention strategies to reduce the risk of suicide.

Perceived stress in adolescence and labour market participation in young adulthood - a prospective cohort study

BACKGROUND

Adolescence is a key-developmental stage for physical, neurological, psychological, and social changes. In this developmental stage, a large number of people struggle with mental health problems like stress, anxiety, or depression. Psychological vulnerability in adolescence has previously been found to be negatively related to future low labour market participation. However, studies are lacking that investigate the impact of stress during adolescence on labour market participation in early adulthood using register data. The aim of this prospective study was therefore to examine the association between perceived stress during adolescence and labour market participation in young men and women in early adulthood.

METHODS

A Danish cohort of 3038 participants born in 1989 was followed with use of questionnaires from age 15 to age 28. The exposure, self-reported perceived stress, was collected by questionnaires at ages 15, 18, and 21. The outcome, labour market participation, was based on register information on social benefits, such as unemployment benefits, sickness benefits, and disability benefits, collected on a weekly basis during a 4-year period. Information about the socioeconomic confounders was also gleaned from registers.

RESULTS

The study found consistent associations between perceived stress from age 15 to age 21 and low labour market participation from age 25 to age 29 in both women and men after adjusting for mental health and socioeconomic confounders. The strongest associations between perceived stress and low labour market participation were seen among men who reported stress several times during adolescence.

CONCLUSIONS

The results indicate that although, women in general, reported being more stressed than men during adolescence and had lower labour market participation in early adulthood, there was a small group of men who had experienced stress during adolescence who were at particularly high risk of being marginalised in the labour market.

14-Year Longitudinal Trajectories of Depressive Symptoms Among Youth With and Without Type 1 Diabetes

OBJECTIVE

There is evidence that youth with type 1 diabetes are at risk for depression, and depression is a significant risk factor for subsequent psychological and physical health problems. However, it is not clear if/when this depression risk emerges. The goal of this study was to determine if there are differences in levels of depressive symptoms between youth with and without type 1 diabetes that develop over the course of emerging adulthood. We also examined whether adolescent psychosocial variables predicted depressive symptoms during emerging adulthood.

METHODS

Youth with (n = 132) and without (n = 131) type 1 diabetes were enrolled in the study at average age 12 and followed for 14 years. Depressive symptoms were measured throughout the study. Psychosocial variables of interest were measured during adolescence.

RESULTS

Group differences in depressive symptoms emerged by study end at average age 26. Depressive symptoms appeared to decline over time for youth without diabetes and to increase over time for youth with diabetes. Parent relationship difficulties increased over adolescence as did peer conflict for the entire cohort. Supportive relationships with parent and peers predicted fewer end of study depressive symptoms (controlling for baseline depressive symptoms)-equally so for both groups.

CONCLUSIONS

This study provides evidence that those with type 1 diabetes may be at risk for depressive symptoms many years after diagnosis and after adolescence. Although relational difficulties with parents and peers increase during adolescence, supportive relationships over the course of adolescence may help to mitigate depressive symptoms during young adulthood.

“I Personally Wouldn’t Know Where to Go”: Adolescents’ Perceptions of Mental Health Services

The aim of this study was to explore perceptions of mental health services from the perspectives of adolescents with no prior service experience. Thirty students in the Transition Year (fourth year) of secondary school participated in this study: 22 females and 8 males, aged 15 to 16. There was equal distribution across rural and urban settings. Participants had no prior experience of accessing mental health services. Data were collected in secondary school settings in the Republic of Ireland. An interpretive description approach guided this study. Data were collected through individual interviews. To complement interviews, participants drew images of mental health care environments and mental health staff members; drawings were not subjected to analysis. Data (participant interviews) were analyzed using qualitative content analysis. Three themes were identified. Participants suggested that “mental health services” differed from “psychiatric services,” with the latter term perceived more negatively. Uncertainty about how to access these services was voiced. Considering the vulnerability of adolescents to the experience of mental distress, education around mental health services is warranted. It is expected that provision of education in this area would enhance service delivery, improve adolescents’ help-seeking behaviors for mental distress, and reduce stigma.

Parental Chronic Illness, Internalizing Problems in Young Adulthood and the Mediating Role of Adolescent Attachment to Parents: A Prospective Cohort Study

Background: Parental chronic illness is associated with an elevated risk for developing social-emotional and behavioral problems in children, in particular internalizing symptoms. This study aimed to investigate the associations between parental chronic illness when participants were adolescents and subsequent internalizing symptoms in young adulthood and whether adolescent attachment to parents or peers mediates these associations. Methods: The study used longitudinal survey data from the Youth and Mental Health Study, a cohort study including a representative sample of youth in central Norway assessed in the period from 1999 to 2000 (mean age 14.9 years) and in 2012 (mean age 27.2 years) (N = 1,266). The data consist of youth self-reports at both time points. Parental chronic illness was reported by the adolescents, quality of attachment was measured using the Inventory of Parent and Peer Attachment (IPPA), and internalizing problems were assessed in young adulthood by using the Adult Self-Report (ASR). Data were analyzed using parallel mediation analyses, controlling for adolescent sex, parental socioeconomic status, and divorce. In addition, separate analyses were conducted for adolescent girls and boys. Results: The total longitudinal effect was significant for both maternal and paternal chronic illness on internalizing problems in young adulthood. The direct effect on internalizing problems was only significant for maternal chronic illness. Attachment to fathers partially mediated the relationship between maternal chronic illness in adolescence and internalizing symptoms in young adulthood, whereas attachment to both mothers and fathers fully mediated the relationship between paternal chronic illness in adolescence and internalizing symptoms in young adulthood. A separate analysis for girls and boys indicated that the results were only significant for girls. Parental chronic illness did not play a significant indirect effect via attachment to peers on internalizing problems. Conclusions: Identifying protective factors in the pathways between parental chronic illness and mental distress in children could guide measures that promote the well-being of the child and family. The study demonstrates the importance of targeting the entire family in chronic illness care.