Longitudinal Study Of Adolescent Research Articles

Exposure to Multiple Natural Disasters and Externalising and Internalising Behavior: A Longitudinal Study of Adolescents

PurposeAs natural disasters become more frequent and more severe, there is a corresponding need to understand their relationship with child and adolescent mental health, and in particular, to understand exposure to multiple natural disasters. This study assesses the relationship between exposure to both single and multiple disasters and adolescent internalising and externalising behavior. MethodsThe study used five waves of a nationally representative longitudinal Australian dataset. Exposure to sudden-onset (fires, floods, storms) and slow-onset (drought) disasters was collected across five waves. Adolescent internalising and externalising behavior collected in the final three waves using the self-reported Strengths and Difficulties Questionnaire. Random effects regressions assessed sudden- and slow-onset disasters and multiple disaster exposure, controlling for geographic and socioeconomic variables. ResultsExposure to multiple disasters was associated with adverse adolescent outcomes. Two or more sudden- and slow-onset disaster exposures in the last 12 months was related to more conduct problems. Exposure to multiple sudden-onset disasters in the current and previous waves was related to increased problems with peers. A single exposure to either sudden- or slow-onset disasters was not associated with Strengths and Difficulties Questionnaire outcomes. DiscussionThe study findings suggest that multiple exposure to disasters has a negative association with adolescent wellbeing. These findings suggest that, rather than adapting to disasters, youth exposed to multiple disasters suffer more than their peers, including peers exposed to a single disaster.

Feasibility of recruiting adolescents into a prospective cohort study of the effects of social isolation during COVID-19

BackgroundSocial connection and loneliness in adolescence are increasingly understood as critical influences on adult mental and physical health. The unique impact of the social isolation imposed by the COVID-19 lockdown on emerging adults is therefore expected to be especially profound. We sought to investigate the feasibility of using ecological momentary assessment (EMA) and wearable accelerometers to characterize the effects of social isolation and/or loneliness experienced by adolescents during the COVID-19 pandemic.MethodsWe recruited 19 participants aged 13–18 from an Adolescent Medicine practice in Atlanta, GA. Participants completed surveys at baseline and throughout a 2-week study period using EMA regarding their degree of social isolation, loneliness, family functioning, school climate, social media use, and COVID-19 experiences surrounding their physical, mental, and social domains. Six participants agreed to wear an activity tracker and heart rate measurement device for 14 days to monitor their emotional state and physical health. Participant feedback was collected via open-ended exit interviews. Feasibility of recruitment/retention, adherence, and outcome measures were investigated. Implementation was also assessed by evaluating the barriers and facilitators to study delivery. Associations between the social isolation and loneliness variables and all other variables were performed with univariate linear regression analysis with significance set at p < 0.05. The progression criteria were a recruitment rate of > 30% and a retention rate of > 80%.ResultsProgression criteria were met for recruitment (76%) of participants, but not retention (38%). Adherence to EMA survey completion was highly variable with only 54% completing ≥ 1 survey a day, and accelerometry use was not feasible. Social isolation was significantly correlated with lower school climate, higher COVID-19 experiences, higher depression scores, and lower sleep quality. Loneliness also showed a significant correlation with all these factors except COVID-19 experiences.ConclusionsEMA and wearable accelerometer use was not feasible in this longitudinal study of adolescents during the COVID-19 pandemic. Future research should further investigate barriers to conducting long-term research with adolescents and the potential effects of the pandemic on subject recruitment and retention.

Mindset × Context: Schools, Classrooms, and the Unequal Translation of Expectations into Math Achievement.

Mindset × Context: Schools, Classrooms, and the Unequal Translation of Expectations into Math Achievement.

Reciprocal relationships between self-esteem, coping styles and anxiety symptoms among adolescents: Between-person and within-person effects

IntroductionPrevious researches have not distinguished between-person effects from within-person effects when exploring the relationship between self-esteem, coping styles, and anxiety symptoms among adolescents.Objectives To address this gap, this study investigated reciprocal associations among self-esteem, coping styles, and anxiety symptoms in a three-wave longitudinal panel survey, using an analytical strategy that disaggregates within-person and between-person variance.MethodsThe data was drawn from the Longitudinal Study of Adolescents’ Mental and Behavioral Well-being Research study conducted in 10 public schools in the Guangdong province of China. All participants had a baseline visit (N = 1957, age 13.6, grades 7 and 10) and follow-up interviews at one-year intervals for 3 years. A random intercept cross-lagged panel model combined with mediation analysis was performed.ResultsAt the within-person level, following results were observed. (1) Low self-esteem and anxiety symptoms bidirectionally predicted each other. (2) Low self-esteem and negative coping style bidirectionally predicted each other. (3) Anxiety symptoms predicted subsequent negative coping style but not vice versa. At the between-person level, we obtained the following main results. (1) Significant predictive effects on the random intercept were found among all three study constructs. (2) There were sex differences regarding the association between self-esteem and anxiety symptoms and the correlation strength of females was greater than that of males. (3) Self-esteem mediated the reciprocal relations between coping styles and anxiety symptoms.ConclusionsThese results could be an important advance by elucidating the reciprocal relationships among self-esteem, coping styles, and anxiety symptoms at the within-person level, suggesting that interventions targeted at promoting self-esteem and cultivating positive coping style may help reduce adolescent anxiety.Disclosure of InterestNone Declared

Is anybody there? A longitudinal examination of help-seeking and suicidal risk among Latino, Black, and non-Hispanic white adolescents.

Understanding adolescents' and emerging adults' help-seeking behaviors is important to curb suicidal thoughts and behaviors (STB), especially among racial/ethnic minorities who have some of the highest chronic rates of STB in the United States. Learning how diverse groups of adolescents seek help during emotional crises can help us understand the stark health disparities related to suicide risk and respond to them in culturally informed ways. The study observed adolescents via a nationally representative sample (n=20,745) over 14 years (National Longitudinal Study of Adolescents to Adult Health [Add Health]) to examine the association between help-seeking behaviors and STB. Longitudinal multinomial logistic regressions were run to assess for racial/ethnic and gender disparities. Help-seeking was not protective for Black female STB but alternatively was protective for each male group (non-Hispanic white, Black, and Latino). Latinas in their early-to-late 20s with no self-reported STB were at an extremely high risk of suicide attempts just 6 years later. This is the first study to examine race/ethnicity*gender in six independent groups to assess suicidality longitudinally among a nationally representative sample. Tailoring existing interventions to meet the needs of growing and diverse communities is critical for suicide prevention programs and policies.

Reciprocal relationships between self-esteem, coping styles and anxiety symptoms among adolescents: between-person and within-person effects

BackgroundPrevious researches have not distinguished the between-person effects from the within-person effects when exploring the relationship between self-esteem, coping styles, and anxiety symptoms among adolescents. To address this gap, this study investigated reciprocal associations among self-esteem, coping styles, and anxiety symptoms in a three-wave longitudinal panel survey, using an analytical strategy that disaggregates the within-person and the between-person variance.MethodsData was drawn from the Longitudinal Study of Adolescents’ Mental and Behavioral Well-being Research study conducted in 10 public schools in the Guangdong province of China. All participants had a baseline visit (N = 1957, mean age 13.6, grades 7 and 10) and follow-up interviews at 1-year intervals for 3 years. A random intercept cross-lagged panel model combined with mediation analysis was performed.ResultsAt the within-person level, the following results were observed. (1) Low self-esteem and anxiety symptoms bidirectionally predicted each other. (2) Low self-esteem and negative coping style bidirectionally predicted each other. (3) Anxiety symptoms predicted subsequent negative coping style but not vice versa. At the between-person level, we obtained the following main results. (1) Significant predictive effects on the random intercept were found among all three study constructs. (2) There were sex differences regarding the association between self-esteem and anxiety symptoms and the correlation of females was stronger than that of males. (3) Self-esteem mediated the reciprocal relations between coping styles and anxiety symptoms.ConclusionsOverall, findings revealed a reciprocal relationship between low self-esteem and anxiety symptoms for both females and males. Besides, anxiety symptoms predict subsequent negative coping style but not vice versa. We also highlighted the mediating role of self-esteem in the reciprocal relations between coping styles and anxiety symptoms. Thus, interventions targeted at promoting self-esteem and cultivating positive coping style may help reduce adolescent anxiety.

Negative caregiving and stress reactivity moderate the relation between early life stress and externalizing in adolescence.

Exposure to early life stress (ELS) is common and has been implicated in the development of psychopathology; importantly, however, many individuals who experience ELS do not develop emotional or behavioral difficulties. Prior research implicates stress exposure, negative caregiving behaviors, and patterns of physiological reactivity in predicting psychological well-being; however, the precise factors that contribute to resilience versus vulnerability to the adverse effects of stress exposures are not well understood. In a longitudinal study of adolescents (N=120) assessed at three timepoints approximately every 2 years beginning at the ages of 913 years, we examined the roles of autonomic reactivity to social stress (assessed through skin conductance during the Trier Social Stress Task) and negative caregiving behaviors as moderators of the association between exposure to ELS and internalizing and externalizing symptoms. We found that the relation between ELS and externalizing symptoms was moderated by both negative caregiving and autonomic reactivity, such that the relation between ELS and externalizing was positive at low levels of negative caregiving and at high levels of autonomic reactivity; interactions predicting internalizing symptoms were not statistically significant. These findings highlight the importance of considering physiological and environmental variables that might contribute to susceptibility or resilience to symptoms of psychopathology following exposure to ELS.

Impact of Neighborhood Quality and Recent Life Stressors on Sleep Problems: A Longitudinal Study of Adolescents at Risk for Maltreatment

Impact of Neighborhood Quality and Recent Life Stressors on Sleep Problems: A Longitudinal Study of Adolescents at Risk for Maltreatment

Race-shifting in the United States: Latinxs, Skin Tone, and Ethnoracial Alignments.

In the study, we engage the question of racial "fluidity" by examining patterns of ethnoracial identification in adolescence and, importantly, shifts in ethnoracial identification between adolescence and adulthood using two waves of data from a nationally representative, longitudinal study of adolescents who were in Grades 7 to 12 during the 1994 to 1995 school year. Our theoretical framework draws from social identity theory and brings together bodies of research in race and immigration to make a case for the importance of phenotype, ancestry, and sociocultural elements as potential mechanisms for patterns among Latinx youth, as shifts in ethnoracial identification are predominantly a Latinx phenomenon. The bulk of the findings suggest that both phenotype and immigration are important factors for ethnoracial self-identification among Latinx youth, as well as shifts in their ethnoracial identification in young adulthood. Given what we know about ethnoracial categorization and ascription, findings suggest that, overall, shifts in ethnoracial identification among Latinx youth are primarily about bringing their self-identification into alignment with how they think they tend to be (and most likely are) perceived by others, which we suggest represents a Sedimentation of the Color Line. We close by discussing the myriad implications of our findings for the U.S. racial order and the ongoing debate about how to "measure" the Latinx population.

Association Between Childhood Maltreatment, FKBP5 Gene Methylation, and Anxiety Symptoms Among Chinese Adolescents: A Nested Case-Control Study.

BackgroundAnxiety symptoms are common mental health problems among adolescents worldwide. This study aimed to explore (1) the longitudinal association between childhood maltreatment and anxiety symptoms, (2) the association between childhood maltreatment and DNA methylation of the FKBP5 gene, and (3) the association of DNA methylation of the FKBP5 gene with anxiety symptoms at follow-up.MethodsA nested case-control design was conducted to identify a case group and control group from a longitudinal study of adolescents aged 13–18 years in Guangzhou from 2019 to 2020. Adolescents with anxiety symptoms at baseline and follow-up were considered the case group, while those without anxiety symptoms at baseline and follow-up were considered the control group. The case and control groups were matched according to age and sex. Our study finally included 97 cases and 141 controls.ResultsAfter adjusting for significant covariates, childhood emotional abuse was associated with subsequent anxiety symptoms (β = 0.146, 95% CI = 0.010~0.283); students with physical and emotional neglect were more likely to get a lower level of DNA methylation at most CpG units of FKBP5 gene (P < 0.05); FKBP5-12 CpG 15 methylation was associated with anxiety symptoms at follow-up (β = −0.263, 95% CI = −0.458~-0.069). However, after multiple hypothesis testing, childhood maltreatment was not associated with FKBP5 DNA methylation (q > 0.10); FKBP5 DNA methylation did not show an association with subsequent anxiety symptoms (q > 0.10).ConclusionsChildhood emotional abuse was associated with an increased risk of anxiety symptoms among Chinese adolescents. After multiple hypothesis testing, childhood maltreatment was not significantly associated with FKBP5 DNA methylation. DNA methylation of the promoter region of the FKBP5 gene was not a significant predictor of anxiety symptoms. More attention should be paid to the mental health of adolescents with childhood maltreatment.

Chronic hypertension and risk of preterm delivery: National Longitudinal Study of Adolescents to Adult Health.

Chronic hypertension during pregnancy is associated with increased risk of adverse birth outcomes. In 2017, the American College of Cardiology and American Heart Association (ACC/AHA) lowered thresholds to classify hypertension in non-pregnant adults to SBP≥130mmHg and DBP≥80mmHg (ie stage I hypertension), resulting in an additional 4.5-million reproductive-aged women meeting criteria for hypertension. Little is known about effects of pre-pregnancy blood pressure (BP) in this range. To examine the effect of pre-pregnancy maternal BP on preterm delivery. We analysed the data from two waves of the National Longitudinal Study of Adolescent to Adult Health, including participants that had measured BP at Wave IV (2008-09) and a pregnancy that resulted in a singleton live birth between Waves IV and V (2016-18; n=2038). We categorised BP using ACC/AHA cut-offs: normal (SBP<120mmHg and DBP<80mmHg), elevated (SBP 120-129mmHg and DBP<80mmHg), hypertension stage I (SBP 130-139mmHg or DBP 80-89mmHg) and hypertension stage II (SBP≥140mmHg or DBP≥90mmHg). We estimated risk ratios (RR) with log-binomial regression adjusting for maternal demographics, anthropometrics and medication use. The prevalence of preterm delivery was 12.6%. A standard deviation (SD) increment in SBP (SD=12.2mmHg) and DBP (SD=9.3mmHg) was associated with a 14% (95% confidence interval [CI] 2, 27) and 20% (95% CI 4, 37) higher risk of preterm delivery. Compared to normotensive controls, stage I (RR 1.33, 95% CI 1.01, 1.74) and stage II (RR 1.34, 95% CI 0.89, 2.00) hypertension were associated with increased risk. We observed greater risk of preterm delivery among women with higher pre-pregnancy BP. Women with stage I hypertension during pregnancy may benefit from increased BP monitoring. Additional studies on the utility of foetal surveillance in this group are warranted.

Perceived Parental Knowledge Reduces Risk for Initiation of Nicotine and Cannabis Vaping: A Longitudinal Study of Adolescents.

This study examines the role of perceived parental knowledge on initiation of nicotine and cannabis vaping among youth. Longitudinal study from a self-administered online survey. Three waves of data collected in 6-month intervals. 79 public and private schools in Texas. Adolescents who self-reported never using e-cigarette to vape nicotine (n=1907; weighted sample [N] = 304371) or vape cannabis (n=2212; N=351955) at baseline. Participants were in 8th, 10th, and 12th grade at baseline. Self-reported measures of nicotine and cannabis vaping. Weighted multivariate logistic regression models examined role of perceived parental knowledge at baseline (Spring 2016) as a predictor of nicotine and cannabis vaping initiation at 6-month (Fall 2016) and 12month (Spring 2017) follow-up. Covariates were age, sex, race/ethnicity, and other tobacco use. Initiation rates were 5.9% for nicotine vaping and 8.6% for cannabis vaping, at 12-month follow-up overall. Higher perceived parental knowledge was associated with lower odds of nicotine vaping initiation at 6months (adj OR: .69; 95% CI: .50-.93) and 12 months (adj OR: .68; 95% CI: .50-.92). Similarly, higher perceived parental knowledge was associated with lower odds of cannabis vaping initiation at 6months (adj OR: .58; 95% CI: .38-.87) and 12months (adj OR: .53; 95% CI: .38-.74). E-cigarette prevention efforts directed at adolescents should incorporate parent engagement strategies as a method of increasing actual and perceived parental knowledge of their child's location, activities and peer groups.

A Longitudinal Study of Adolescents' Pornography Use Frequency, Motivations, and Problematic Use Before and During the COVID-19 Pandemic.

Since the beginning of the COVID-19 pandemic, an increase in pornography use has been reported based on cross-sectional findings, raising concerns about associated adverse outcomes, such as problematic pornography use (PPU). The aims of the present study were to document potential changes in adolescents’ pornography use frequency, motivations, and PPU before and during the COVID-19 pandemic. As part of an ongoing study on adolescents’ sexual health, we used a large sample (NTime 1 = 1771; 47.6% girls, Mage = 15.42 years, SD = 0.59) to examine changes from baseline (before the COVID-19 pandemic) to one year later (during the COVID-19 pandemic) in adolescents’ self-reported pornography use frequency, motivations, and PPU, using latent change models and examining potential gender differences. No significant changes were observed in adolescents’ pornography use frequency and pornography use motivations, and no gender differences were present in these trends. Although statistically significant, slight decrease was observed in boys’ PPU levels, and a statistically significant, slight increase was observed in girls’ PPU levels, these changes were very small, providing no practical or clinical relevance. In sum, despite previous propositions, concerns, and cross-sectional findings, longitudinal results suggest that adolescents’ pornography use characteristics were rather stable between November 2019 and June 2021, and the COVID-19 pandemic and related lockdowns might not have led to general increases in adolescents’ pornography use as it was expected.Supplementary InformationThe online version contains supplementary material available at 10.1007/s10508-021-02282-4.

Education, Child Marriage, and Work Outcomes Among Young People in Rural Malawi

PurposeSchool attainment has increased and gender gaps narrowed in many settings without commensurate declines in child marriage and with persistent gender gaps in work. This paper investigates whether child marriage changes young people’s ability to translate education into paid work in rural Malawi. MethodsUsing data from a longitudinal study of adolescents in rural Malawi followed through young adulthood, individual-level fixed-effects regressions that account for time-invariant factors were used to investigate differences in child marriage status on the extent to which grade attainment, reading, and numeracy skills lead to higher participation in paid work and reduce participation in unpaid work. Gender differences in these relationships were explored. ResultsPrevalence of child marriage is high for young women (53% vs. 6% for men), and participation in paid work low (7% vs. 42% for men). Attainment of six grades among young married women and nine grades among young married men was associated with paid work irrespective of child marriage. Reading with comprehension in two languages was associated with paid work for young men married as adults (coefficient = .27, p ≤ .01). Numeracy was associated with paid work among unmarried young women (coefficient = .04, p ≤ .01). Negative associations between grade attainment and unpaid work were found for young women married at ages 16–17 and unmarried, while positive associations were found for young unmarried men. ConclusionsThe relationship between education and work among young people in Malawi is compromised by related challenges of poor learning and continued high levels of child and young adult marriage.

Do preterm-born adolescents have a poorer oral health-related quality of life?

BackgroundTo evaluate oral health-related quality of life (OHRQoL) over a period of five years using the Oral Health Impact Profile (OHIP-14) questionnaire in a population of Swedish adolescents born preterm and full term.MethodsIn a longitudinal study of adolescents aged 12–14 and 17–19, changes over time in OHRQoL were measured by using OHIP-14. The OHIP-14 score, self-reported chronic illness, temporomandibular disorder (TMD pain) and subjective orthodontic treatment need were compared between 98 extremely and very preterm born (< 32 gestational week) and 93 full-term controls (≥ 37 gestational week) at two ages. The chi-square test was used for comparisons within the extremely-, very-, and full-term control groups, and to contrast the differences of mean scores of OHIP-14, the ANOVA test was used for comparisons within the study groups of extremely preterm, very preterm and full term-born adolescents.ResultsAll adolescents reported a good self-perceived OHRQoL. No significant differences in the comparisons of the total mean scores were revealed between the groups, between gender or in domain-specific scores over the 5-year period. Very preterm adolescents with reported chronic illness at 12–14 years of age showed significantly higher mean scores of OHIP-14 compared with those without chronic illness (p = 0.015). At age 17–19, significantly higher mean scores of OHIP-14 were reported by very preterm adolescents with TMD pain compared to those without TMD pain (p = 0.024). Significantly higher mean scores of OHIP-14 were found among the extremely preterm (p = 0.011) and very preterm born adolescents (p = 0.031) with a subjective need of orthodontic treatment compared with those without orthodontic treatment need.ConclusionsPoor OHRQoL measured with OHIP-14 in very preterm adolescents aged 12–14 was related to chronic illness and aged 17–19 to TMD pain. In addition, extremely and very preterm-born adolescents with subjective orthodontic treatment need at 17–19 years of age also reported poor OHRQoL. To improve the dentist–patient relationship and achieve more successful treatment results, it is important for dental clinicians to understand the impact that chronic illness, TMD pain and orthodontic treatment need has on OHRQoL in preterm-born adolescents.

Childhood maltreatment predicts subsequent anxiety symptoms among Chinese adolescents: the role of the tendency of coping styles

Childhood maltreatment may have an influence on anxiety symptoms and coping styles. This longitudinal study aimed to estimate the prospective associations between different types of childhood maltreatment and anxiety symptoms among Chinese adolescents, with a particular focus on investigating whether these associations vary by the tendency of coping styles. Data were from the Longitudinal Study of Adolescents’ Mental and Behavioral Well-being Research. The baseline sample included 1957 participants (response rate: 99.03%) and followed up at 1-year later (n = 1836, retention rate: 93.8%). Anxiety symptoms, childhood maltreatment, the tendency of coping styles, morning cortisol level, depressive symptoms, self-esteem, and other demographics were measured. Overall, the mean age of the baseline students was 13.6 (SD: 1.5) years. The final results showed that childhood emotional abuse (unstandardized β-estimate = 0.13, 95% CI = 0.07–0.18), physical abuse (unstandardized β-estimate = 0.08, 95% CI = 0.01–0.16), and sexual abuse (unstandardized β-estimate = 0.17, 95% CI = 0.04–0.29) were positively associated with anxiety symptoms at follow-up after adjusting for significant covariates at baseline. Additionally, the stratified analyses demonstrated that only among students with negative coping styles, childhood emotional abuse, physical abuse, and sexual abuse were associated with subsequent anxiety symptoms; the differences between the positive and negative coping style strata were significant (P < 0.05). Childhood maltreatment appears to be a predictor of anxiety symptoms among adolescents, and the tendency of coping styles may have a moderating role in these longitudinal associations. The efforts to prevent anxiety symptoms are recommended to be focused on adolescents with the experience of childhood maltreatment and negative coping styles.

Vicarious Victimization, Negative Emotions, and Maladaptive Coping: Investigating the Role of Violent Peers.

According to general strain theory's (GST) vicarious strain hypothesis, individuals' behavior is influenced by witnessing or having knowledge of others' stressful experiences, especially those within their network. Drawing on Agnew's GST, the current study examines the relationship between peer victimization and violent offending, as well as the potential intervening factors in this relationship. The primary research questions are: (a) does vicarious strain occur through having friends who are victimized? And (b) what role does violent peers play in the coping process? Data for the analysis were obtained from the National Longitudinal Study of Adolescents to Adult Health's friendship network data. Results from multivariate analysis show that victimization of ones' friend (or peer victimization) is associated with depression as well as personal involvement in violent offending. This relationship, however, is fully mediated by depression. Regarding deviant peers, a three-way interaction effect was observed, specifically peer victimization, involvement with peers, and associating violent peers was a significant predictor of violent offending. Findings from the current study highlight the importance of considering the role of deviant peers in the coping process. Results lend support to Agnew's GST. Implications for theory and research are discussed.

What Does It Meme? A Qualitative Analysis of Adolescents' Perceptions of Tobacco and Marijuana Messaging.

With the increasing popularity of electronic cigarettes and legalization of recreational marijuana, messaging from websites and social media is shaping product perceptions and use. Quantitative research on the aesthetic appeal of these advertisements from the adolescent and young adult perspective is lacking. We evaluated (1) how adolescents and young adults perceived tobacco and marijuana messaging online and through social media platforms and (2) interactive behaviors related to these messages. We interviewed 24 participants from the Tobacco Perceptions Study, a longitudinal study of adolescents' and young adults' (aged 17-21) tobacco-related perceptions and tobacco use. We collected qualitative data from October 2017 through February 2018, through individual semi-structured interviews, on participants' experiences and interactions with online tobacco and marijuana advertisements and the advertisements' appeal. Two analysts recorded, transcribed, and coded interviews. Themes that emerged from the interviews focused on the direct appeal of online messaging to adolescents and young adults; the value of trusting the source; the role of general attitudes and personal decision-making related to using tobacco and/or marijuana; the appeal of messaging that includes colors, interesting packaging, and appealing flavors; and the preference of messages communicated by young people and influencers rather than by industry. These findings suggest the need for increased regulation of social media messaging and marketing of tobacco and marijuana, with a particular focus on regulating social media, paid influencers, and marketing that appeals to adolescents and young adults. The findings also suggest the importance of prevention programs addressing the role of social media in influencing the use of tobacco and marijuana.

Young Adult Sexual Behavior in South Africa: How Important is Parental Social Support?

Risky sexual behavior exposes young adults to poor reproductive health outcomes. Parental social support is associated with reduced incidence of risky sexual behavior, but this association has not been adequately investigated in South Africa. We used data from Waves 1 and 3 of the Cape Area Panel Study (a longitudinal study of adolescents and young adults aged 14-22 years and living in the Cape Town metropolitan area) to investigate the associations between parental social support and young adult risky sexual behavior in South Africa. We conducted multivariable logistic regression analyses to assess whether lack of specific categories of parental social supports at wave 1 (baseline) are associated with higher risky sexual behaviors by young adults at wave 3 (follow-up). We found that young adults who never ate meals with their mothers and those who never discussed personal matters with their fathers had increased risks of multiple sexual partnerships. Also, young adults who never got pocket money or money for gifts from their mothers had increased risk to engage in unprotected sex during their first sexual encounter. Our findings suggest that eating family meals, discussing personal matters with youth, and providing them with pocket money, may protect young adults in South Africa from risky sexual behavior.

Predictors of Adolescents' First Episode of Homelessness Following Substance Use Treatment

PurposeA growing body of research has identified correlates (i.e., predictors) of youth homelessness. However, such risk and protective factors have not been identified for youth receiving substance use treatment. Using characteristics collected at treatment intake, the present study sought to identify predictors of youths' first episode of homelessness during the 12 months after substance use treatment entry. MethodsData come from a longitudinal study of adolescents (n = 17,911; aged 12–17 years) receiving substance use treatment throughout the U.S. Participants completed surveys at intake and at 3, 6, and 12 months later. Logistic regression and Lasso machine learning regression were used to predict participants' first episode of homelessness in the 12 months after treatment intake. ResultsAfter excluding adolescents reporting previous experiences of homelessness, 5.0% of adolescents reported their first episode of homelessness over the 12 months after treatment intake. The results from logistic and lasso models were generally consistent. Final models revealed that adolescents who were older, male, reported more victimization experiences, mental health problems, family problems, deviant peer relationships, and substance use problems (more treatment episodes and illicit drug dependence) were more likely to report experiencing homelessness. Hispanic/Latino adolescents were less likely to experience homelessness, compared with white adolescents. ConclusionsThe results point to the important risk and protective factors that can be assessed at treatment entry to identify adolescents at greater risk of experiencing their first episode of homelessness.