Historical change in associations between perceived risk, disapproval, and use of cannabis among young adults ages 19-30, 2011-2022.

BACKGROUND: The current study used U.S. young adult data to examine overall and age group-specific historical trends in (a) mean perceived risk and disapproval of cannabis use, and (b) risk/use and disapproval/use associations. METHODS: Data were collected from 2011 to 2022 from 16,492 respondents aged 19-30 in the national Monitoring the Future panel study. Trends in mean risk and disapproval overall and by age group (19-22, 23-26, 27-30) were modeled. Models regressing any past 30-day cannabis use on risk and disapproval controlled for sex, race/ethnicity, college education, population density, state cannabis policy, region, and year. Age group differences and historical trends in regression estimates from year-specific models were examined. RESULTS: From 2011 to 2022, overall mean perceived risk decreased from 3.08 (just over moderate) to 2.50 (between slight and moderate); mean disapproval decreased from 2.21 (between disapprove and strongly disapprove) to 1.66 (between don't disapprove and disapprove). Higher risk and disapproval were independently associated with lower odds of past 30-day cannabis use overall (AORs 0.86 and 0.76, respectively); controlling for sociodemographics and state policy had virtually no impact on association strength. There were no significant age-related association differences. The risk/use association weakened from AOR 0.84 in 2011 to AOR 0.91 in 2022; the disapproval/use association remained stable (AORs 0.753 and 0.749). CONCLUSIONS: Young adults now perceive cannabis as less risky and are less disapproving of using than they were a decade ago. Perceived risk has weakened as a cannabis use risk factor over time; disapproval has remained a stable risk factor.

Gaslighting Exposure During Emerging Adulthood: Personality Traits and Vulnerability Paths.

Among the many forms of psychological violence, gaslighting is a particularly insidious manipulative behaviour that includes acts aimed at controlling and altering one's own partner's sensations, thoughts, actions, affective state, self-perception, and reality-testing. The purpose of this study was to evaluate the association between the experience of gaslighting and dysfunctional aspects of the partner's personality. Gaslighter personality facets were assessed using the Personality Inventory for DSM-5-Informant Form-Adult (PID-5-IRF), while gaslighting behaviours were assessed using a 25-item questionnaire, based on the three categories of glamour, good-guy, and intimidator (Stern, 2007). The sample was made up of a group of 177 Italian emerging adults aged between 19 and 26 (49.2% male, 50.8% female; M = 21.88, SD = 1.75), enrolled at University, who participated voluntarily in the research. In fact, none of them received any form of direct or indirect incentive. In our study, we applied a beta regression model mapping the Likert scale into the open interval (0,1). The main results show (a) good-guy gaslighting is positively associated with manipulativeness and negatively associated with deceitfulness; (b) glamour gaslighting has a negative association with separation insecurity and manipulativeness, but it is positively associated with irresponsibility; (c) intimidator gaslighting has a positive association with separation insecurity and distractibility and a negative association with eccentricity and perceptual dysregulation; (d) all three gaslighting categories are negatively associated with anhedonia and impulsivity. Based on what emerged from the data, aspects such as separation insecurity, irresponsibility, and distractibility can be seen as serious risk factors for gaslighting. For this reason, with regard to clinical implications, an early recognition of dysfunctional traits in potential abusers should be fostered in order to protect both potential abusers and their partner from aggressive conduct within an intimate relationship.

Entre las muchas formas de violencia psicológica, el gaslighting es un comportamiento manipulador particularmente insidioso que incluye actos destinados a controlar y alterar sensaciones, pensamientos, acciones, estado afectivo, autopercepción y estado de realidad de la pareja. El propósito de este estudio fue evaluar la asociación entre la experiencia del gaslighting y los aspectos disfuncionales de la personalidad de la pareja. Los aspectos de la personalidad de gaslighting se evaluaron utilizando el Inventario de Personalidad para DSM-5-Formulario de Informante-Adulto (PID-5-IRF), mientras que los comportamientos de gaslighting se evaluaron usando un cuestionario de 25 ítems, basado en las tres categorías de glamoroso, buen tipo e intimidante (Stern, 2007). La muestra estuvo compuesta por un grupo de 177 adultos jóvenes italianos de entre 19 y 26 años (49.2% hombres, 50.8% mujeres; M = 21.88, SD = 1.75), quienes estaban matriculados en la universidad y participaron voluntariamente en la investigación. De hecho, ninguno de ellos recibió algún tipo de incentivo, ya fuera directo o indirecto. En nuestro estudio aplicamos un modelo de regresión beta que mapea la escala Likert en el rango abierto (0,1). Los principales hallazgos muestran (a) que el buen tipo de gaslighting está positivamente asociado con la manipulación y negativamente asociado con el engaño; (b) el gaslighting glamoroso tiene una asociación negativa con la separación, la inseguridad y la manipulación, pero está positivamente asociado con la irresponsabilidad; (c) la iluminación del intimidador tiene una asociación positiva con la inseguridad de la separación y la distracción y una asociación negativa con la excentricidad y la desregulación perceptiva; (d) las tres categorías de gaslighting están asociadas negativamente con la anhedonia y la impulsividad. Según lo que surgió de los datos, aspectos como la inseguridad en la separación, la irresponsabilidad y la distracción pueden considerarse factores de riesgo graves para el gaslighting. Por esta razón, en las implicaciones clínicas, se debe promover un reconocimiento temprano de los rasgos disfuncionales en los abusadores potenciales para proteger tanto a los abusadores potenciales como a su pareja del comportamiento agresivo dentro de una relación.

Religiosity in adolescence and body satisfaction and disordered eating in adolescence and young adulthood: cross-sectional and longitudinal findings from project EAT.

PURPOSE: This research identified whether adolescent religiosity was associated with body satisfaction and disordered eating in adolescence and early adulthood and explored gender/sex differences in these associations. METHODS: Project EAT (Eating and Activity in Teens and Young Adults) is a longitudinal cohort study following participants from adolescence into young adulthood. For this analysis (N = 1620), religiosity (importance of religion and frequency of religious service participation) during adolescence was examined as a correlate of body satisfaction and disordered eating (binge eating, maladaptive behaviors intended to lose or maintain weight, eating to cope, and dieting) at the same life stage (EAT-II, 2003-2004, Mage = 19.4 years) and during young adulthood (EAT-IV, 2015-2016, Mage = 31.5 years). Analyses used linear and logistic regression models adjusted for demographics and adolescent body mass index. RESULTS: During adolescence, females who placed greater importance on religion had higher body satisfaction, 22% higher odds of binge eating, and 19% greater odds of dieting in the past year, while more frequent attendance of religious services was associated with higher body satisfaction and 37% greater odds of dieting past year. Among males, only frequent attendance of religious services was associated with higher adolescent body satisfaction. Longitudinally, among females, only frequent attendance of religious services in adolescence predicted higher levels of body satisfaction in young adulthood. No significant longitudinal associations were observed among males. CONCLUSIONS: Our findings contribute to understanding the complex interplay between religiosity, gender, and body satisfaction. Further research should explore cultural factors influencing these associations and qualitative aspects of religious experiences to inform nuanced interventions. LEVEL OF EVIDENCE: Level III, cohort study.

Long-term brain structural and cognitive outcomes in a low-risk preterm-born sample.

Prematurity has been related to altered brain structure and cognition, and so our aim was to describe them in the absence of major structural brain injury following low-risk preterm birth during adolescence and young adulthood. The sample consisted of 250 participants, 132 of whom were low-risk preterm (30-36 weeks' gestational age) and 118 were full-term individuals (37-42 weeks' gestational age), aged between 16 and 38 years old. All participants underwent an extensive neuropsychological assessment. T1- and diffusion-weighted MRI images of 33 low-risk preterm and 31 full-term young adults (20-32 years old) were analyzed. No differences were found in terms of general cognitive functioning score or current socioeconomic status; however, the low-risk preterm group obtained lower scores in phonetic and semantic fluencies, and theory of mind. Significant reductions were identified in the thalamus volume as well as thicker cortex in the inferior temporal gyrus in the low-risk preterm group. Low-risk preterm young adults evidenced greater regional AD and MD compared to the full-term sample; while low-risk preterm group showed lower mean NDI and ODI (FWE-corrected, p < 0.05). Being born preterm is associated with poorer performance in various cognitive domains (i.e., phonetic and semantic fluencies, and theory of mind) later in life, along with differences in normative structural brain development in inferior temporal gyrus and regional white matter microstructure.

Debt Collection Pressure and Mental Health: Evidence from a Cohort of U.S. Young Adults.

The debt collection industry in the United States has grown in tandem with rising indebtedness. Prior research on debt and mental health mainly treats debt as a resource and liability rather than a power relationship between creditors and debtors. We study the mental health consequences of debt collection pressure using data from the National Longitudinal Survey of Youth-1997 Cohort (N = 7,236). Drawing on stress theory and health power resources theory, we posit collection pressure as a relational stressor that undermines well-being through negative interactions with debt collectors, financial strain, role strain, and stigma. We find that more than one out of every three young adults in this cohort faced debt collection pressure by around age 40, with higher rates among low-income and Black young adults. Individual fixed-effects and lagged dependent variable regression models indicate that debt collection pressure is associated with increased psychological distress, with more severe consequences among low-income young adults.

Depressive symptoms' trajectories since adolescence and sleep quality in early adulthood: results from the EPITeen cohort.

OBJECTIVES: We aimed to estimate the association between depressive symptoms' trajectories during adolescence and young adulthood and sleep quality in early adulthood. METHODS: Data from 802 participants of the EPITeen study, evaluated at 13, 17 and 21 years of age, were analysed. Depressive symptoms were assessed using the Beck Depression Inventory-II and three trajectory classes from adolescence to adulthood were previously identified (High, Moderate, Low). The prevalences of poor sleep quality, overall (score>5) and in its specific dimensions: subjective sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbance, use of sleep drugs and daytime dysfunction (score≥2), at 21 years of age were evaluated using the Pittsburgh Sleep Quality Index. Associations were estimated using adjusted odds ratio (OR) and the respective 95 % confidence intervals (CI). RESULTS: At 21 years of age, 29.8 % young adults presented poor sleep quality, which was significantly different between those in the Low and High depressive trajectories (14.3 and 53.1 %, respectively, p<0.001). Compared with participants in the Low trajectory, those in the High trajectory were more likely to present poorer sleep quality at 21 years of age (OR=6.34 95 % CI: 3.94-10.21), particularly worse levels of sleep disturbance (OR=5.89 95 % CI: 2.84-12.21), daytime dysfunction (OR=7.63 95 % CI: 3.63-16.06) and subjective sleep quality (OR=6.61 95 % CI: 3.69-11.85). CONCLUSIONS: Poor sleep quality in early adulthood was more frequent among individuals who had high levels of depressive symptoms since adolescence. Monitoring depression until adulthood may help to identify those at higher risk of sleep problems which, in turn, can lead to worse health outcomes over time.

Association between adolescent alcohol use and cognitive function in young adulthood: A co-twin comparison study.

BACKGROUND AND AIMS: Studies on adolescent alcohol use and cognition are often unable to separate the potential causal effects of alcohol use on cognition from shared etiological influences, including genetic influences or other substance use comorbidities also known to be associated with cognition, such as nicotine use. The present study aimed to fill this gap and clarify the relationship between adolescent alcohol use and young adult cognition by accounting for both measured and unmeasured confounders. DESIGN: A random effects model accounting for nesting in families was used to control for measured confounders. Next, co-twin comparisons were conducted within the full sample and in monozygotic twin pairs (MZ) to control for unmeasured genetic and environmental confounders shared by co-twins. PARTICIPANTS/SETTING: Participants were 812 individuals (58.6% female, 361 complete pairs, 146 MZ pairs) from the longitudinal FinnTwin12 study in Finland. MEASUREMENTS: Adolescent alcohol use was indexed with measures of frequency of use and intoxication averaged across ages 14 and 17. Cognitive outcomes were measured at average age 22 and included Trail Making Test, California Stroop test, Wechsler Adult Intelligence subtests (Vocabulary, Block Design, Digit Symbol), Digit Span subtest of Wechsler Memory Scale, Mental Rotation Test and Object Location Memory test. Covariates included sex, parental education, general cognitive ability, current alcohol use and nicotine use. FINDINGS: Greater frequency of alcohol use and frequency of intoxication across adolescence was associated with decreased vocabulary scores in the co-twin control [freq: stnd beta = -0.12, 95% confidence interval (CI) = -0.234, -0.013] and MZ only co-twin control models (freq: stnd beta = -0.305, 95% CI = -0.523, -0.087; intox: stnd beta = -0.301, 95% CI = -0.528, -0.074). CONCLUSIONS: In Finland, there appears to be little evidence that adolescent alcohol use causes cognitive deficits in young adulthood, except modest evidence for association of higher adolescent alcohol use with lower young adult vocabulary scores.

Body Aware: Adolescents' and Young Adults' Lived Experiences of Body Awareness.

Paying attention to body sensations has been associated with many positive outcomes such as increased subjective well-being, enhanced emotion regulation, and reduced symptom reports. Furthermore, body awareness has an important therapeutic utility in the treatment of various psychological ailments. Despite its importance in mental health, there is very little research on body awareness during adolescence and young adulthood - important developmental periods characterized by bodily changes and the development of one's relationship to one's body. Therefore, the present qualitative study sought to explore how body awareness is understood, experienced, and described by adolescents and young adults. Four online focus groups were conducted with young people between the ages of 14 and 24 (N = 20). Thematic analyses revealed a multidimensional and highly contextualized understanding and experience of body awareness in this age group. In general, young people reported mainly attending to intense and unpleasant body sensations with a particular attitude (e.g., accepting or avoidant) depending on the type of sensation, leading to a variety of cognitive, emotional, and behavioral reactions to these sensations. These processes were embedded in an underlying schema of beliefs about body awareness and an overarching physical and socio-cultural context. Results further revealed a more nuanced experience and understanding of body awareness in women and in young adults. The present findings can be used as a foundation for the development of body awareness theoretical frameworks and self-report instruments for youth and can aid the generating of hypotheses for future research on body awareness in this age group.

Volunteering in Young Adulthood: Complex Associations With Later Health and Well-Being Outcomes.

PURPOSE: To investigate whether changes in volunteering from adolescence to young adulthood are associated with subsequent health and well-being outcomes in adulthood. DESIGN: Longitudinal cohort study. SETTING: National Longitudinal Study of Adolescent to Adult Health. SUBJECTS: U.S. adults from Wave IV (2008/2009; N = 12,234) and Wave V (2016-2018; N = 9,971). MEASURES: Any volunteering and nine types of volunteering (independent variables) and 41 health and well-being outcomes (dependent variables) using an outcome-wide approach with multiple linear-, logistic-, and generalized linear regressions. RESULTS: Volunteering in young adulthood was associated with better health behaviors (e.g., 34% decreased risk of binge drinking, 95% CI [0.54, 0.81]) and improved psychosocial and civic outcomes (e.g., lower depressive symptoms (ß = -0.08, 95% CI [-0.14, -0.02]) in adulthood. Volunteering showed little evidence of associations with other health and well-being outcomes (e.g., loneliness, (ß = -0.04, 95% CI [-0.09, 0.01])). Assessing volunteering by organization types showed a range of positive and negative outcomes. For example, volunteering in hospitals/nursing homes was associated with a 36% increased risk of high cholesterol (95% CI [1.06, 1.73]) and volunteering with political clubs was associated with a 52% increased risk of an anxiety diagnosis (95% CI [1.13, 2.05]). CONCLUSION: Our findings suggest more work is needed to determine the conditions under which volunteering is health promoting and to minimize potential adverse effects associated with some types of volunteering.

Same Transition, Different Perspectives: Comparing Dyadic Interviews with Autistic Young Adults and Parents.

Introduction: The transition to young adulthood can be a turbulent life stage, and this is often magnified for autistic youth. Young adults frequently profess different goals and values than their parents. While there is some indication in autism research about how parents, and to a lesser extent, autistic young adults, feel about this transition, little research leverages dyadic interviews with both populations or has used this method with Black and/or low-income families. Method: We conducted four sets of dyadic interviews with autistic young adults and their parents who live together. Results: We identified three key themes that both groups found important to the transition: independence, structured transition, and interpersonal relationships. However, we found that how the groups conceptualized these themes were divergent and revealed differences in goals and values. Parents were more oriented toward long-term normative views of fulfillment, whereas young adults spoke about what was meaningful to them currently. Conclusion: This work has implications for changes to how autism research will conceptualize the transition to young adulthood and how we can create better social opportunities for this population. Community brief: Why is this an important issue?: Autistic adults are at risk for difficulties getting work and education, which can lead to them feeling alienated or unfulfilled. Most research on autistic people becoming adults is based on White people with more cultural and financial resources and does not ask autistic people themselves or their families with them. Research is needed to improve transition outcomes for these underresearched and underserved groups.What was the purpose of this study?: This study explored how autistic youth and their parents thought about and experienced the transition to adulthood out of an urban, low-resourced school district.What did the researchers do?: Researchers interviewed four parents and four autistic youth. Three families were Black, and one family was White and from a low-income household. All autistic youth had received special education services, needed support to transition to adulthood, and had finished high school 1 to 6 years before the study. The young adults lived with their mothers and received support from them for daily tasks. We interviewed the parents and then the youth. In some cases, youths joined parents' interviews or parents joined youths' interviews to provide help with remembering information or giving answers.What were the results of the study?: Researchers identified three themes. First, parents and youth thought about independence differently. Parents focused more on work and financial independence. Youth focused more on social aspects of work and having independence in daily activities such as shopping. The second theme was that youth and parents approached ongoing structured supports differently. Youth reported positive experiences with a range of services but did not discuss the need for ongoing supports like their parents did. Third, youth emphasized the importance of social relationships and opportunities to connect with peers through shared interests.What do these findings add to what was already known?: We learned that standard questions about transition may not reflect how autistic youth and their parents think about becoming an adult. Interviewing families coming out of a predominantly Black and low-income urban school district helped us to understand how these groups experience and think about the transition to adulthood, even though they did not use these identities as a logic for how they thought about young adulthood. This suggests that parent and youth perspectives differ in groups that are not usually well represented in research studies related to transition for autistic youth.What are potential weaknesses in the study?: This study only included a small number of youth and parents. These results do not represent all Black autistic youth or low-income autistic youth coming from urban school districts. Families who are less connected to services may have been less likely to hear about or take part in the study.How will these findings help autistic adults now or in the future?: These findings could inform the development of better interviewing approaches and research to address the needs of diverse autistic youth entering adulthood. This work could improve transition support. Parents, youth, support providers, and researchers may think about adulthood differently. Improved support could help build mutual understanding and coordination around youths' and their families' goals.

Young Adults' Daily Participation Scale: A measure of objective and subjective participation.

INTRODUCTION: Participation in occupations is considered essential for individuals' health and wellbeing. Participation is a multidimensional construct that encompasses objective and subjective dimensions that transform over the course of life. Nonetheless, there is a lack of comprehensive measures that examine young adults' participation in age-appropriate activities. Therefore, we developed the Young Adults' Daily Participation Scale (YADAPS) and aimed to explore its psychometric properties. METHODS: In Study 1, the content validity of the YADAPS was established based on nine experts. Its internal consistency, criterion, convergent, and construct validity were explored among 115 typical young adults (21-35 years). Using a different sample, Study 2 examined YADAPS discriminant validity among 33 young adults with developmental coordination disorder (DCD) and 52 typical peers. CONSUMER AND COMMUNITY INVOLVEMENT: No consumer and community involvement was included in these studies. RESULTS: The relevance of YADAPS items was sufficient. Internal consistency was acceptable to excellent in most scales (.74 ≤ α ≤ .89). Criterion validity was supported by correlations between the subjective participation scales and a wellbeing measure. Convergent validity was found for all scales. No gender effect was observed (p ≥ .05). However, significant differences (p ≤ .05) were found between individuals with and without DCD. CONCLUSIONS: The YADAPS appears to be a promising measure of objective and subjective dimensions of participation in young adults. The results support the importance of examining various participation dimensions, including occupational experience. Thus, it may be used for clinical purposes among young adults as well as for occupational science research, to broaden our understanding on the interplay between participation dimensions in various life situations in young adulthood. However, further research is needed on psychometric properties, the most suited scoring method, and to consolidate their robustness among diverse populations of young adults. PLAIN LANGUAGE SUMMARY: Participation, or how one engages in daily life activities, greatly affects wellbeing. The activities in one's routine change over the lifespan, in accordance with one's developmental phase. Existing assessments of participation have limitations, like not considering young adults' concerns or only focussing on certain aspects of participation. By focussing on both the objective-observable and subjective-experiential aspects of participation, the Young Adults' Daily Participation Scale (YADAPS) strives to be a comprehensive assessment tool designed specifically for reflecting activities relevant in young adulthood. This manuscript provides preliminary validity and reliability for the YADAPS, a new questionnaire that assesses objective and subjective aspects of participation in activities relevant for individuals in young adulthood. Furthermore, the questionnaire is able to distinguish between young adults with and without participation difficulties; therefore, it is suitable for research and clinical use.

The Global Impact of Multisystemic Vulnerabilities on Criminal Variety: A Cross-Continental Study in Young Adults.

Previous research has shown a robust association between different childhood and adolescent vulnerabilities and youth offending. However, these investigations have primarily focused on youths from high-income Western countries. Consequently, the generalizability of these findings to better inform global justice policies remains uncertain. This study aimed to address this gap by examining the relationship between individual, familial, and contextual vulnerabilities and criminal versatility during young adulthood, accounting for sociodemographic factors and cross-national differences. Data were derived from a diverse sample of 4,182 young adults (67% female; mean age = 18.96; SD = 0.81) residing in 10 countries across 5 continents who participated in the International Study of Pro/Antisocial Behavior in Young Adults. The Psychosocial and Family Vulnerability Questionnaire and the Adverse Childhood Experiences questionnaire were used to assess social and family adversity, and past-year criminal diversity was measured with the Criminal Variety Index. Results indicate that child maltreatment, substance abuse, and delinquent peers are global risk factors for criminal variety. Moreover, they are independent across males and females and among youths living in countries that are ranked differently on the Human Development Index (HDI). In addition, some childhood vulnerabilities showed different predictive ability across sexes (e.g., school failure), and across countries ranked differently on the HDI (e.g., family dysfunction). These findings suggest that certain childhood factors contribute to criminal behavior through transcultural mechanisms. Moreover, they highlight the importance of developing evidence-based policies that focus on transcultural risk factors to globally prevent criminal behavior.

Exposure to parental interpartner conflict in adolescence predicts sleep problems in emerging adulthood.

OBJECTIVES: Parental interpartner conflict is a highly prevalent form of family risk that is stressful for adolescents with ramifications for their sleep. Multiple studies have demonstrated that adolescents from high-conflict homes are at risk for sleep problems. Building on this literature, we conducted novel analyses and investigated whether exposure to interpartner conflict in adolescence predicts sleep problems in the subsequent developmental period of emerging adulthood. METHODS: We used a rigorous four-wave design spanning 8years (collected between 2012-2020). At wave 1, participants were 245 adolescents from diverse backgrounds (M age=15.74years; 67% White/European American, 33% Black/African American; 52% girls). Individuals participated again in their adolescence at wave 2 (M age=16.77) and wave 3 (M age=17.69). Participants returned for wave 4 in emerging adulthood (M age=22.97). Adolescents reported on their parents' interpartner conflict (intense and frequent conflict). Sleep duration (minutes) and quality (efficiency, long wake episodes) were measured using actigraphy. RESULTS: After controlling for autoregressive effects and several covariates, findings from a structural equation model revealed that greater exposure to parental interpartner conflict in adolescence predicted reduced sleep efficiency and more long wake episodes in emerging adulthood. CONCLUSIONS: Results build on the literature to consider sleep in the family context and are among the first to illustrate that exposure to parental interpartner conflict in adolescence predicts sleep problems in emerging adulthood. Continued investigations into the antecedents of sleep problems in emerging adulthood may benefit from considering past exposure to family risk.

Acquisition of peak bone mass in a Norwegian youth cohort: longitudinal findings from the Fit Futures study 2010-2022.

In a Norwegian youth cohort followed from adolescence to young adulthood, bone mineral density (BMD) levels declined at the femoral neck and total hip from 16 to 27 years but continued to increase at the total body indicating a site-specific attainment of peak bone mass. PURPOSE: To examine longitudinal trends in bone mineral density (BMD) levels in Norwegian adolescents into young adulthood. METHOD: In a prospective cohort design, we followed 980 adolescents (473 (48%) females) aged 16-19 years into adulthood (age of 26-29) on three occasions: 2010-2011 (Fit Futures 1 (FF1)), 2012-2013 (FF2), and 2021-2022 (FF3), measuring BMD (g/cm2) at the femoral neck, total hip, and total body with dual x-ray absorptiometry (DXA). We used linear mixed models to examine longitudinal BMD changes from FF1 to FF3. RESULTS: From the median age of 16 years (FF1), femoral neck BMD (mean g/cm2 (95% CI)) slightly increased in females from 1.070 (1.059-1.082) to 1.076 (1.065-1.088, p = 0.015) at the median age of 18 years (FF2) but declined to 1.041 (1.029-1.053, p < 0.001) at the median age of 27 years (FF3). Similar patterns were observed in males: 16 years, 1.104 (1.091-1.116); 27 years, 1.063 (1.050-1.077, p < 0.001); and for the total hip in both sexes (both p < 0.001). Total body BMD increased from age 16 to 27 years in both sexes (females: 16 years, 1.141 (1.133-1.148); 27 years, 1.204 (1.196-1.212), p < 0.001; males: 16 years, 1.179 (1.170-1.188); 27 years, 1.310 (1.296-1.315), p < 0.001). CONCLUSION: BMD levels increased from 16 to 18 years at the femoral and total hip sites in young Norwegian females and males, and a small decline was observed at the femoral sites when the participants were followed up to 27 years. Total body BMD continued to increase from adolescence to young adulthood.

Early-life risk factors for depression among young adults in the United States general population: Attributable risks and gender differences.

BACKGROUND: This study adopts individual and societal-level approaches to examine the contribution of childhood risk factors to major depressive episodes (MDE) in 2526 American young adults. METHODS: Nationally representative data from the 2017 U.S. Panel Study of Income Dynamics - Transition into Adulthood Supplement (PSID-TAS) were analyzed using multivariate methods to assess the impact of parental mental illness, childhood adversities, childhood mental disorders, and childhood physical conditions. Adjusted odds ratios and population attributable risk proportions (PARPs) are calculated to estimate the proportion of MDE cases related to risk factors. RESULTS: The 12-month prevalence of positive screens for MDE was 25.4 %. Approximately 34 % of these were attributable to childhood mental disorders, 24 % to childhood physical conditions, 21 % to childhood adversities, and 16 % to parental mental illness. Childhood and parental depression were critical risk factors, both at the individual (odds ratio exceeding 2) and societal (PARP approximately 24 %) levels. Gender-specific risk factors were identified, with childhood physical abuse and childhood anxiety disorders constituting risk factors for females, and childhood externalizing disorders and childhood headaches as risk factors for males. Approximately 60 % of U.S. young adult MDE cases are attributable to risk factors before age 18. LIMITATIONS: Possible over reporting of MDE may have biased the associations between predictors and depression. CONCLUSIONS: Exposure to depression at a young age-one's own or parental depression-is a robust risk factor for both genders. Policies and interventions focused at alleviating the societal burden of depression should value its generational transmission.

Exploring emotional distress symptom clusters in young adults with childhood traumatic brain injury.

BACKGROUND: Depression, anxiety, and stress are persistent and co-occurring symptoms in survivors of childhood traumatic brain injury (TBI), and often impact on health-related quality of life (HRQoL). This paper explored emotional distress symptom clusters and associated factors in young adults with childhood TBI. METHODS: We included 54 young adults who sustained mild (n = 14), moderate (n = 27), and severe (n = 13) childhood TBI, at 20 years post-injury. The Depression Anxiety Stress Scale was administered. Cluster group membership was identified using two-step clustering and hierarchical clustering methods, and associated factors were assessed with multiple regression models. RESULTS: Two symptom cluster groups were identified, including a No Distress (n = 66%) and an Elevated Distress (n = 33%) group, with the latter showing significantly higher symptoms of depression, anxiety, and stress (all p < .001). Elevated Distress group membership was linked to tobacco use and poor sleep quality, while poor HRQoL was associated with younger age at injury and Elevated Distress group membership. CONCLUSIONS: Using cluster methodology, we showed that one-third of young adults with childhood TBI had elevated emotional distress symptoms. This underscores the complex emotional profile of this subgroup and the need for assessment, analysis, and treatment methods that target a range of symptoms rather than relying on single-diagnostic protocols. ABBREVIATIONS: ANOVA: Analysis of Variance; CT: Computed Tomography; DASS: Depression Anxiety Stress Scale; GCS: Glasgow Coma Scale; HREC: Human Research Ethics Committee; HRQoL: Health-Related Quality of Life; IBM: International Business Machines Corporation; MRI: Magnetic Resonance Imaging; PTA: Post-Traumatic Amnesia; QoL: Quality of Life; QOLIBRI: Quality of Life after Brain Injury Scale; REDCap: Research Electronic Data Capture; SES: Socioeconomic Status; SPSS: Statistical Package for the Social Sciences; TBI: Traumatic Brain Injury.

Alcohol Use and Life Stressors During the COVID-19 Pandemic: A Longitudinal Study of Young Adults.

Objective: To estimate the extent to which drinking to cope with the COVID-19 pandemic and experiencing pandemic-related life stressors are associated with alcohol use escalation among young adults. Methods: Respondents in Los Angeles, CA, USA (N=2,130) completed prospective cohort study surveys before (baseline; October 2018-November 2019; mean age: 19.7[SD=0.4) and during (follow-up; May-August 2020) the COVID-19 outbreak. Past 30-day drinking days and number of drinks per drinking day were assessed from baseline to follow-up. At follow-up, participants reported drinking to cope with social isolation and pandemic-related stressors. Results: Pandemic-related stressor prevalence ranged from 5.5% (evicted/lost home) to 72.6% (worried about education) and 27.1% drank to cope with social isolation during the pandemic. Respondents who did (vs. did not) report pandemic-related coping drinking were more likely to increase past 30-day drinking days and drinks per drinking day from baseline to follow-up after adjustment for possible confounders. Employment loss/reduction, financial problems, and perceived likelihood of contracting COVID-19 or handling the pandemic poorly were each associated with increases in drinking days or drinks per drinking day. Conclusions: Experiencing certain life stressors and drinking to cope with social isolation may be associated with drinking escalation among young adults during the COVID-19 pandemic.

Cognitive ability, education, height and body mass index in relation to risk of schizophrenia and mortality following its diagnosis.

This study examines the hypotheses that the traits of higher IQ, longer education and taller height are associated with lower risk of death as compared to traits of low IQ, short education, and short height in men with schizophrenia compared to men without schizophrenia. In total, 937,919 men born 1939-59 and 1983-1997 with information from conscription were followed for incident schizophrenia in Danish registries. Higher levels of cognitive ability, longer education, and taller height were associated with fewer cases of schizophrenia. In a sub-sample of 652,368 men with information on body mass index, underweight was associated with more and overweight and obesity were associated with fewer cases of schizophrenia compared with normal weight. Higher cognitive ability, longer education, and taller height were associated with fewer deaths from both natural and unnatural causes in both men with and without schizophrenia. Underweight was associated with more deaths from natural and unnatural causes, whereas overweight and obesity were associated with more deaths from natural causes and fewer deaths from unnatural causes in both groups of men. Due to interaction, tall height and long educational duration were associated with fewer deaths from natural causes, and obesity was associated with fewer deaths from unnatural causes among men with schizophrenia compared to men without. In conclusion, traits in young adulthood are associated with higher mortality in men with and without schizophrenia, but traits of long educational duration and obesity seem to be especially important for lower mortality in men with schizophrenia.

Temporal Course of Interference Control from Early to Late Young Adulthood: An ERP Study.

In the present study, we aimed to investigate the neural dynamics of interference control using event-related potentials (ERPs) to reveal time course of interference control from the beginning to the end of young adulthood. Three groups of participants aged 19-21, 23-27 and 28-44 performed a Stroop task. The results revealed age differences in both accuracy and ERP amplitudes during all aspects of interreference control processing that reflect selective attention (P2), conflict monitoring (N2), conflict evaluation (P3) and interference control (N450). Both younger groups made more errors on incongruent trials compared to participants in their early 30s. The presence of higher P2 and N2 amplitudes, diminished P3 and again higher N450 amplitudes in participants in their early 20s points to a shortage of available resources for top-down control at this age. These results are in accordance with structural and functional studies that show that development of the frontoparietal network, which underlies interference control, continues after adolescence. While brain mechanisms are still developing, the use of accompanying cognitive abilities is still not optimal. The findings that change in neural dynamics and related performance continues into early adulthood challenge current models of cognitive development and call for new directions in developmental theorizing.

Educational experiences and American young adults' childbearing goals: A research note.

Objective: This research note describes the relationship between young adults' educational experiences and childbearing goals in the U.S. Background: In the U.S., education is associated with later childbearing and fewer children, but the relationship between education and fertility desires and intentions is less well-understood. This article contributes to the research literature by illustrating variation in prospective fertility goals by education, focusing on the early life course in order to understand young adults' goals before they have been shaped by parenting and extensive workforce experiences. Method: This analysis uses data from the National Surveys of Family Growth (1995-2019), a nationally representative survey, to study fertility desires and intentions among childless U.S. men and women ages 19-24. Predicted probabilities demonstrating differences in fertility goals by educational experiences, from three sets of multivariable analyses (logistic regression predicting fertility desires and intentions, separately, and negative binomial regression predicting intended parity), are shown. Results: Men and women with a bachelor's degree and those enrolled in college do not have lower fertility goals than those without a degree and not enrolled; if anything, more educated individuals are slightly more likely to desire (for men only) and intend children and to have slightly larger intended family size. Conclusions: Education gaps in fertility in the United States are not attributable to differences in early-life fertility goals.