Can we predict adolescent cannabis use? A Bayesian semi-parametric approach to project future trends.

Despite its decrease in many Western countries, cannabis remains the most used illicit substance among adolescents. This study aims to summarize cannabis consumption during the last two decades and project trends among 15-year-olds in the 2021-22 HBSC survey. A Bayesian semi-parametric hierarchical model was adopted to estimate the trend of cannabis consumption using data of about 287,000 adolescents from the 2001/2002 to the 2017/2018 HBSC wave and the 38 countries that met the inclusion criteria. Data show an overall decline in most countries for both boys and girls. However, in 22 countries of 38 cannabis use is expected to increase again in our projection. The discussion of these findings should take into account cultural, policy, social factors and unpredictable events such as the Covid-19 pandemic, that can significantly impact future trends leading to discrepancies between the projected and observed values. However, these discrepancies can provide insight into understanding the potential impact of preventive strategies and the underlying processes responsible for changes in cannabis use over time.

Changing to Impress: Testing a Mediation Model from Instagram Self-presentation to Cosmetic Surgery.

BACKGROUND: This study examined the relationship between false self-presentation on Instagram and consideration of cosmetic surgery through the mediating role of body image control in photos (BICP), photo manipulation, and body shame. We predicted that false self-presentation on Instagram was indirectly associated with cosmetic surgery intentions through the aforementioned constructs. METHODS: A total of 504 young Italian adults (28.2% males, 18-30 years) completed an online survey. They completed a questionnaire containing the Self-presentation on Instagram Questionnaire, the Body Image Control in Photos Questionnaire-revised, the Photo Manipulation Scale, the Objectified Body Consciousness Scale, and the Acceptance of Cosmetic Surgery Scale. The pattern of associations between the constructs was analyzed via path analysis. RESULTS: The results show that false self-presentation on Instagram was associated with photo manipulation, both directly and indirectly, through BICP. Furthermore, photo manipulation was linked to body shame, but neither of them was associated with cosmetic surgery intentions. Finally, false self-presentation on Instagram was associated with the consideration of cosmetic surgery only through the mediation of BICP. CONCLUSION: Findings indicate that self-presentation styles might affect Instagram photo behaviors and individuals' cosmetic surgery intentions, suggesting that surgeons should fully examine patients' motivations before providing them with services. Furthermore, intervention programs encouraging users to present a more authentic version of themselves online might reduce the risk of self-objectification and reduce the consideration of procedures aimed at modifying one's body for purely aesthetic reasons. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Risk Behaviors among Migrant Adolescents in Italy.

Adolescence is a critical period for engaging in health risk behaviors. Migrant adolescents may face unique challenges due to acculturation stress. This study aims to monitor substance use and problem gambling among migrant adolescents living in Italy. Data from the 2017/18 Health Behavior in School-Aged Children survey in Italy were analyzed. The 18,794 participants included 15-year-olds, categorized as native or migrants, with ethnic backgrounds from Western, Eastern European, or non-Western/non-European countries. Girls had higher smoking rates, while boys exhibited higher prevalence of alcohol-related risk behaviors, cannabis use, and gambling. Boys from Eastern European countries displayed a greater risk of drunkenness (OR: 1.58, 95% CI: 1.06-2.37), particularly in the first generation, while those from Western countries showed a higher risk of multiple substance use (OR: 1.44, 95% CI: 1.05-1.96). Girls from Eastern European and non-Western/non-European countries had a lower risk of alcohol consumption (OR: 0.50, 95% CI: 0.29-0.85; OR: 0.55, 95% CI: 0.33-0.91, respectively). Finally, boys, especially those from Eastern European and non-Western/non-European countries, had a significantly higher risk of problem gambling (OR: 1.83, 95% CI: 1.04-3.22; OR: 2.10, 95% CI: 1.29-3.42, respectively). This disparity was more pronounced in the first generation, possibly due to acculturation challenges and socio-economic factors. Risk behaviors in adolescents are influenced by complex interplays of gender, cultural factors, and migration generation. Preventive strategies should consider these factors to effectively address substance use and gambling in this heterogeneous population.

Adolescent use of social media and associations with sleep patterns across 18 European and North American countries.

OBJECTIVE: Over the past decade, concurrent with increasing social media use (SMU), there has been a shift toward poorer sleep among adolescents in many countries. The purpose of this study was to examine the cross-national associations between adolescent SMU and sleep patterns, by comparing 4 different categories of SMU (nonactive, active, intense, and problematic use). DESIGN, SETTING, AND PARTICIPANTS: Data were from 86,542 adolescents in 18 European and North American countries that participated in the 2017/18 Health Behaviour in School-aged study. MEASUREMENTS: Mixed-effects linear regression models were used to examine cross-national associations between 4 SMU categories and adolescent sleep duration, bedtime and social jetlag derived from self-reported data. RESULTS: For all countries combined, nonactive SMU was associated with longer sleep, earlier bedtimes, and less social jetlag, compared to active SMU, although the differences were minor. By comparison, intense and problematic SMU were associated with less sleep and later bedtimes on both school and nonschool days, and greater social jetlag, compared to active SMU. While findings were relatively consistent between countries, some differences were observed, suggesting that the national and cultural context may be important in interpreting results. CONCLUSIONS: These findings suggest that both intense and problematic SMU are associated with poorer sleep patterns in adolescents across most countries. Further research is needed to identify effective policies, programs, and messaging to promote the healthy use of social media and prevent potential negative impacts on adolescent sleep.

Heterogeneity of smartphone impact on everyday life and its relationship with personality and psychopathology: A latent profile analysis.

BACKGROUND: The relationships between problematic smartphone use and psychological factors have been extensively investigated. However, previous studies generally used variable-centered approaches, which hinder an examination of the heterogeneity of smartphone impact on everyday life. OBJECTIVE: In the present study, we capitalized on latent profile analysis to identify various classes of smartphone owners based on the impact associated with smartphone use (e.g., unregulated usage, preference for smartphone-mediated social relationships) and to compare these classes in terms of established psychological risk factors for problematic smartphone use. METHOD: We surveyed 934 young adults with validated psychometric questionnaires to assess the impact of smartphones, psychopathological symptoms, self-esteem and impulsivity traits. RESULTS: Smartphone users fall into four latent profiles: users with low smartphone impact, users with average smartphone impact, problematic smartphone users, and users favoring online interactions. Individuals distributed in the problematic smartphone user profile were characterized by heightened psychopathological symptoms (stress, anxiety, depression, obsessive-compulsive tendencies) and impulsivity traits. Moreover, users who preferred online interactions exhibited the highest symptoms of social anxiety and the lowest levels of self-esteem. CONCLUSIONS: These findings further demonstrate the multidimensionality and heterogeneity of the impact of smartphone use, calling for tailored prevention and intervention strategies.

Problematic social networking sites use and online social anxiety: The role of attachment, emotion dysregulation and motives.

Problematic Social Networking Sites Use (PSNSU) and social anxiety are associated. SNSs users may develop online social anxiety that may become a standalone problem. The present study aims to test the mediating role of emotion dysregulation and motives (coping, conformity, social, and enhancement) between attachment (anxiety and avoidance) and two outcomes (PSNSU and online social anxiety) in an integrated theory-driven model. Self-report questionnaires were completed by 756 SNSs users (50.4 % females; mean age = 28.74 years, SD = 8.00). Results of the path analysis supported the partial mediating role of emotion dysregulation in the association between attachment anxiety and both the outcomes and the serial mediating role via four and three motives in the association with PSNSU and online social anxiety, respectively. This study highlighted the role of several relational, emotional, and motivational factors that should be taken into account to tackle PSNSU and online social anxiety through clinical and prevention interventions.

Desire thinking and craving as predictors of problematic Internet pornography use in women and men.

INTRODUCTION: According to the recent adaptation of the I-PACE model, desire thinking and craving might be closely related to problematic Internet pornography use. The overall aim of the present study was to investigate the role of two components of desire thinking (imaginal prefiguration and verbal perseveration) and craving in problematic Internet pornography use. Furthermore, we examined gender differences in the underlying mechanism linking desire thinking to problematic Internet pornography use. METHOD: A total of 414 Italian adults (mean age = 27.55 years, SD = 6.13; age range = 18-58; 53.6 % men) participated in this study. Participants completed an online survey to assess problematic Internet pornography use, pornography craving, desire thinking and problematic Internet use. Path analyses and a multi-group approach were used to test the relationships among variables and to explore gender differences. RESULTS: Imaginal prefiguration was associated to pornography craving which, in turn, was associated to verbal perseveration as proximal antecedent of problematic Internet pornography use, above and beyond the effect of age, relationship status, and problematic Internet use. Two paths significantly differed between men and women: the path between verbal perseveration and problematic Internet pornography, which for women was weaker and did not reach significance; and the path between problematic Internet use and problematic Internet pornography use that was not significant for women. CONCLUSIONS: In line with the I-PACE model, the present study provided support for the potential role of desire thinking in problematic Internet pornography use as a specific Internet-use disorder and expanded the literature in the field by testing unexplored gender differences. Preventive and clinical implications are discussed.

Family affluence as a protective or risk factor for adolescent drunkenness in different countries and the role drinking motives play.

AIMS: Previous research has shown mixed results (positive, negative or no effects) regarding socio-economic disparities in adolescent drunkenness. This study investigates whether family affluence is differently associated with frequency of adolescent drunkenness in traditional countries, at a later diffusion of innovation adopter stage according to the Theory of Diffusions of Innovations by Rogers (2003), compared with more progressive countries at a more advanced stage. Furthermore, we investigated as to whether differences in this association can be explained by differences in adolescent drinking motives. METHODS: This study used data from the 2009/2010 survey of the Health Behaviour in School-aged Children (HBSC) study, including 25,566 alcohol-using adolescents aged 11-19 years old from 11 European countries. The Global Innovativeness Index was used to classify countries in progressive or more traditional countries. Multi-level regression analyses and structural equation modelling were conducted. FINDINGS: In traditional countries, family affluence showed a positive association with adolescent frequency of drunkenness. A higher endorsement of social (drinking to celebrate an event) and enhancement motives (drinking to increase moods) by adolescents with a higher family affluence mediated this positive association between family affluence and frequency of drunkenness. In progressive countries, family affluence was negatively associated with frequency of drunkenness. In these countries, a higher endorsement of coping drinking motives by adolescents with a lower family affluence mediated this association. CONCLUSION: A country's diffusion of innovation stage (i.e., traditional vs. progressive) seems to shape the direction of the association between family affluence and adolescent drunkenness including the psychological pathways that explain these socio-economic inequalities. This is most likely due to a quicker and smoother adoption of the new 'low drunkenness norms' ('it is not cool to drink to get drunk') in progressive countries and among adolescents with a higher family affluence.

Structural gender inequality and gender differences in adolescent substance use: A multilevel study from 45 countries.

-Societal gender inequality relates to gender differences in adolescent substance use.-The gender gap in adolescent substance use is larger in countries with higher levels of gender inequality.-Girls in these countries were less likely to get drunk, use alcohol or smoke cigarettes than boys.

Is psychological distress the key factor in the association between problematic social networking sites and poor sleep quality?

BACKGROUND AND AIMS: Problematic Social Networking Sites Use (PSNSU) has been indicated as potentially detrimental for users' mental and sleep health. The present study tested whether PSNSU is directly associated with poor sleep quality and indirectly via psychological distress (stress, anxiety, depression) in a healthy adult sample of Social Networking Sites (SNSs) users. DESIGN: Cross-sectional study among Italian adults who completed online questionnaires between December 2020 and January 2021. SETTING: Italy. PARTICIPANTS: A convenient sample of N = 726 SNSs users (51.8% females; mean age = 28.59 years, SD = 8.19 years). MEASUREMENTS: Self-report data were collected on problematic social networking sites use, sleep quality, psychological distress (stress, anxiety, depression), and socio-demographics. FINDINGS: PSNSU was not directly associated with poor sleep quality. Depression and stress mediated such association. CONCLUSION: Healthcare providers should consider psychological distress and PSNSU when encountering sleep problems, with consideration of the potentially important role of users' age and mental health status.

Physical Activity among Italian Adolescents: Association with Life Satisfaction, Self-Rated Health and Peer Relationships.

The aim of this study was to describe physical activity, both moderate-to-vigorous physical activity (MVPA) and vigorous physical activity (VPA), in a large nationally representative sample of Italian adolescents, aged 11, 13 and 15, and to evaluate if Italian adolescents were in line with the 2020 WHO recommendations. In order to assess the possible impact of physical activity on adolescent psychological and social wellbeing, the associations between MVPA and VPA with life satisfaction, self-rated health and peer relationships were also explored. Data from the 2018 Italian Health Behaviour in School-aged Children (HBSC) survey on 58,976 adolescents were analysed. Logistic regression analysis was used to investigate the association between physical activity and self-rated health, life satisfaction and peer relationships. The association of the Family Affluence Scale with self-rated health, life satisfaction and peer relationships was also studied. The results showed that the majority of Italian adolescents did not meet current physical activity WHO guidelines on MPVA. The prevalence of adolescents claiming to be involved "at least four or more times per week" in VPA was 29%. Overall, our findings highlighted a positive association between MVPA and VPA and life satisfaction, self-rated health and peer support. Data from this study underlined the need to encourage physical activity, especially among older adolescents and girls, who claimed lower levels of MPVA and VPA.

Predicting comments on Facebook photos: Who posts might matter more than what type of photo is posted.

The number of likes and comments received to social media posts and images are influential for users' self-presentation and problematic Facebook use. The aim of this study was to highlight the most relevant factors predicting the popularity (i.e., the probability to receive at a least a comment) of Facebook photos based on: (i) Facebook user-related features; (ii) Facebook photo-related features; and (iii) and psychological variables. A mixed approach was used, including objective data extracted from Facebook (regarding users' characteristics and photo features) as well as answers to a questionnaire. Participants were 227 Facebook users (M = 25.01(1.05) years). They were asked to answer a questionnaire and provide a copy of their Facebook profile data. A total of 180,547 photos receiving a total of 122,689 comments were extracted. Results showed that user-related features (Facebook network and activities) were the most relevant in predicting image popularity accurately. It seems that who posts a Facebook photo matters more than the type of photo posted and the psychological profile of the user. Results are discussed within a psychological perspective. Future research should look at the sentiment (positive vs. negative) of the comments received by different types of photos. This is the first study exploring what makes a Facebook photo popular using objective data rather than self-reported frequency of Facebook activity only. Results might advance current methods and knowledge about potential problematic behaviors on social media.

The Effect of Problematic Social Media Use on Happiness among Adolescents: The Mediating Role of Lifestyle Habits.

Background: Although the relationship between problematic social media use (PSMU) and happiness has been already explored, less is known about the mechanisms that translate PSMU into lower happiness through lifestyle habits. Therefore, the current study focuses on the association between PSMU and happiness, exploring a mediating effect of lifestyle habits (e.g., difficulties in getting to sleep and frequency of physical activity) among Italian adolescents. Methods: A total of 58,976 Italian adolescents (mean age = 13.6, SD = 1.63; age range = 10.5−16.5; 49.4% females) were included. The pattern of relationships specified by the theoretical model was examined through path analysis. Results: Difficulties in getting to sleep (ß = −0.037, p < 0.001) and frequency of physical activity (ß = −0.012, p < 0.001) were mediators in the relationship between PSMU and happiness. Multi-group analyses across gender and age groups (11, 13, and 15 years old) showed that the chain mediating effect of the frequency of physical activity on the difficulties in getting to sleep was not significant for females but significant for males and for all of the three age groups. Overall, females and older ages were sensitive to the whole model. Conclusion: Along with difficulties in getting to sleep and the frequency of physical activity, lifestyle habits may contribute to the association between PSMU and happiness. We also recommend that future studies focus on PSMU in females and older adolescents, as they show more general sleep problems and reduced physical activity.

Forecasting Frequent Alcohol Use among Adolescents in HBSC Countries: A Bayesian Framework for Making Predictions.

(1) Aim: To summarize alcohol trends in the last 30 years (1985/6-2017/8) among 15-year-olds in Health Behaviour in School-aged Children (HBSC) countries (overall sample size: 413,399 adolescents; 51.55% girls) and to forecast the potential evolution in the upcoming 2021/22 HBSC survey. (2) Methods: Using 1986-2018 prevalence data on weekly alcohol consumption among 15-year-olds related to 40 HBSC countries/regions, a Bayesian semi-parametric hierarchical model was adopted to estimate trends making a clusterization of the countries, and to give estimates for the 2022 HBSC survey. (3) Results: An overall declining trend in alcohol consumption was observed over time in almost all the countries. However, compared to 2014, some countries showed a new increase in 2018 and 2021/22 estimates forecast a slight increase in the majority of countries, pointing out a potential bounce after a decreasing period in frequent drinking habits. (4) Conclusions: The clusterization suggested a homogenization of consumption habits among HBSC countries. The comparison between 2022 observed and expected data could be helpful to investigate the effect of risk behaviour determinants, including the pandemic impact, occurring between the last two waves of the survey.

Problematic gaming risk among European adolescents: a cross-national evaluation of individual and socio-economic factors.

BACKGROUND AND AIMS: Previous research has identified numerous risk and protective factors of adolescent problematic gaming (PG) at the individual and social levels; however, the influence of socio-economic indicators on PG is less known. This study aimed to measure the contribution of individual and socio-economic factors involved in PG risk among adolescents from 30 European countries. DESIGN: Multi-level logistic regression analysis of survey data from the 2019 European School Survey Project on Alcohol and Other Drugs (ESPAD) cross-sectional study using self-administered anonymous questionnaires. SETTING: Thirty European countries. PARTICIPANTS: A representative cohort of 15-16-year-old students (n = 88 998 students; males = 49.2%). MEASUREMENTS: The primary outcome measure was adolescents' (low and high) risk of PG. Individual key predictors included self-report assessments of socio-demographic characteristics, time spent gaming and family variables (parental regulation and monitoring, family support). Main country-level predictors comprised Gini coefficient for economic inequalities and benefits for families and children (% gross domestic product), retrieved from international public data sets and national thematic reports. The data analysis plan involved multi-level logistic regression. FINDINGS: Participants who reported stronger parental regulation [odds ratio (OR) = 0.81, 95% confidence interval (CI) = 0.79-0.83] and higher family support (OR = 0.93, 95% CI = 0.91-0.95) reported lower risk of PG. At the country-level, economic inequalities (OR = 1.05, 95% CI = 1.03-1.07) were positively associated with the risk of PG, while benefits for families and children (OR = 0.78, 95% CI = 0.70-0.89) were negatively correlated with the risk of PG. CONCLUSIONS: Supportive family environments, lower country-level economic inequalities and higher government expenditures on benefits for families and children appear to be associated with a lower risk of problematic gaming among European adolescents.

Psychological distress in the context of the COVID-19 pandemic: the joint contribution of intolerance of uncertainty and cyberchondria.

OBJECTIVE: To explore the direct and indirect associations between intolerance of uncertainty, health anxiety (HA), and psychological distress through problematic internet use (PIU) and cyberchondria, both before and during the first months of the COVID-19 pandemic. DESIGN: Two Italian samples were enrolled via an online questionnaire. Sample 1 (N = 556; 69.3% females, Mage 29.6 years, SD = 13.2) was recruited in non-pandemic times, whereas Sample 2 (N = 575; 74% females, Mage 31.9 years, SD = 13.4) was recruited during the COVID-19 lockdown. MAIN OUTCOME MEASURES: Self-report measures assessing HA and psychological distress. RESULTS: Two distinct path analyses showed that intolerance of uncertainty was directly associated with HA and psychological distress in both samples. Moreover, cyberchondria partially mediated the relationship between intolerance of uncertainty and HA and PIU partially mediated the relationship between intolerance of uncertainty and psychological distress in both samples. The link between cyberchondria and psychological distress was significant in Sample 2 but non-significant in Sample 1. The model accounted for a substantial variance of HA and psychological distress in both samples. CONCLUSION: Our findings suggest that problematic online behaviors might exacerbate the negative consequences of intolerance of uncertainty in terms of higher levels of HA and psychological distress both in pandemic and non-pandemic contexts.

How Communication Technology Fosters Individual and Social Wellbeing During the Covid-19 Pandemic: Preliminary Support For a Digital Interaction Model.

The aim of the present study was to test an explanatory model for individual and social wellbeing which incorporates the advantages of using digital technologies during the COVID-19 pandemic. The study was carried out in Italy, one of the countries that has been most severely affected by the pandemic worldwide. The study was designed to include variables that might be specifically pertinent to the uniqueness of the restrictions imposed by the pandemic. Adults living in Italy (n = 1412) completed an online survey during the lockdown period in March 2020. Results showed two distinct digital interaction processes highlighted by the facilitating use of online emotions ("e-motions") and online social support ("e-support"). In short, e-motions were positively related to posttraumatic growth, which in turn was positively associated with positive mental health and higher engagement in prosocial behaviors. Moreover, individuals who perceived themselves as having greater e-support were characterized by higher levels of positive mental health, which it turn was positively associated with prosocial behaviors. Collectively, these two digital interaction processes suggest that digital technologies appear to be critical resources in helping individuals cope with difficulties raised by the COVID-19 pandemic.

The information capacity of adolescent alcohol consumption indicators along a continuum of severity: A cross-national comparison of sixteen Central and Eastern European countries.

BACKGROUND: Because there is high variability among European countries in prevalence levels of various alcohol consumption measures, the informational value of adolescent's alcohol consumption indicators is uncertain. The present study aimed to examine information capacity and measurement invariance of different alcohol consumption indicators in adolescents from countries of the former Soviet (Eastern) Bloc in Central and Eastern Europe (CEE). METHODS: Data were collected in 16 CEE countries, as part of the 2013/2014 wave of the Health Behavior in School-aged Children study. Data from adolescents (age 15) who reported having consumed alcohol at least once in their lifetime were analyzed. Four binary items selected for analysis measured the presence or absence of alcohol consumption in the last 30 days, lifetime drunkenness, weekly drinking frequency, and binge drinking on a typical occasion. Multiple group confirmatory factor analysis and item response theory analysis were used to examine the data. RESULTS: In most of the included countries, alcohol consumption in the last 30 days and lifetime drunkenness were indicative at lower severity levels, while binge drinking and weekly drinking frequency were informative at higher levels of alcohol use severity. A low proportion of the estimated intercepts and factor loadings were noninvariant, which indicated approximate cross-national invariance of these indicators. CONCLUSIONS: Adolescent alcohol consumption indicators are informative for different severity levels and enable cross-nationally invariant measurement. However, different indicators suggested the presence of diverging drinking cultures in the CEE regions, with the highest discrimination capacity at the lower and higher ends of the continuum of alcohol use severity.

Cross-national time trends in adolescent alcohol use from 2002 to 2014.

BACKGROUND: Adolescent alcohol consumption is a major public health concern that should be continuously monitored. This study aims (i) to analyze country-level trends in weekly alcohol consumption, drunkenness and early initiation in alcohol consumption and drunkenness among 15-year-old adolescents from 39 countries and regions across Europe and North America between 2002 and 2014 and (ii) to examine the geographical patterns in adolescent alcohol-related behaviours. METHODS: The sample was composed of 250 161 adolescents aged 15 from 39 countries and regions from Europe and North America. Survey years were 2002, 2006, 2010 and 2014. The alcohol consumption and drunkenness items of the HBSC questionnaire were employed. Prevalence ratios and 95% confidence intervals were estimated using Poisson regression models with robust variance. RESULTS: Data show a general decrease in all four alcohol variables between 2002 and 2014 except for some countries. However, there is variability both within a country (depending on the alcohol-related behaviour under study) and across countries (in the beginning and shape of trends). Some countries have not reduced or even increased their levels in some variables. Although some particularities have persisted over time, there are no robust patterns by regions. CONCLUSIONS: Despite an overall decrease in adolescent alcohol consumption, special attention should be paid to those countries where declines are not present, or despite decreasing, rates are still high. Further research is needed to clarify factors associated with adolescent drinking, to better understand country specificities and to implement effective policies.