The evolving gambling environment, marked by increased accessibility and innovative promotions, has led to rising expenditures globally. Despite this, the relationship between social media use and problem gambling in the Czech Republic remains underexplored. To investigate the association between social media use and problem gambling severity among Czech adults using the Problem Gambling Severity Index (PGSI). Is there a difference in gambling severity based on demographic characteristics? (1); Is there a relationship between social media news consumption and gambling severity? (2); Is there a connection between negative motives for social media use and problematic usage? (3); Is there a link between problematic social media use and gambling severity? (4). Primary research, designed as a cross-sectional study, was conducted in the Czech Republic in November 2024 on a sample of 3093 respondents (48.4% male). All participants were aged 16 years or older. The sample was selected using quota sampling based on multiple identifying quota variables, with minimal differences in the proportions of quota indicators compared to the general population. Non-parametric tests and ordinal logistic regression analyzed relationships between demographics, social media use, and PGSI scores. Higher PGSI scores were found among males, younger participants, those with lower education, and the unemployed or students. Greater social media news consumption correlated with increased gambling severity. Disruptive social media behaviors, such as waking up to check notifications and interrupting activities, were significantly associated with higher PGSI scores. Problematic social media use involving deceit and family conflict substantially heightened the risk of severe gambling problems. These findings highlight the need for targeted prevention initiatives, regulatory policies, and enhanced digital literacy to safeguard vulnerable groups from the risks posed by digital gambling platforms. Addressing both gambling behaviors and problematic social media use is crucial in mitigating potential harms.

• Klíčová slova
• Problem Gambling Severity Index (PGSI), digital gambling platforms and expenditures, digital literacy and prevention, disruptive social media behavior, internet gambling addiction,
• MeSH
• dospělí MeSH
• hráčství * psychologie   epidemiologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• motivace MeSH
• průřezové studie MeSH
• průzkumy a dotazníky MeSH
• sociální média * statistika a číselné údaje   MeSH
• stupeň závažnosti nemoci MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika epidemiologie   MeSH

PURPOSE: This study examined (1) whether intense and problematic social media use (SMU) were independently associated with adolescent well-being; (2) whether these associations varied by the country-level prevalence of intense and problematic SMU; and (3) whether differences in the country-level prevalence of intense and problematic SMU were related to differences in mobile Internet access. METHODS: Individual-level data came from 154,981 adolescents (meanage = 13.5) from 29 countries that participated in the 2017/2018 Health Behaviour in School-aged Children (HBSC) survey. Intense SMU was measured by the time spent on social media, whereas problematic SMU was defined by symptoms of addiction to social media. Mental (life satisfaction and psychological complaints), school (school satisfaction and perceived school pressure), and social (family support and friend support) well-being were assessed. Country-level data came from aggregated individual-level data and data from the Organisation for Economic Co-operation and Development (OECD) on Internet access. RESULTS: Two-level regression analyses indicated that in countries with a lower prevalence of intense SMU, intense users reported lower levels of life satisfaction and family support and more psychological complaints than nonintense users. In contrast, in countries with a higher prevalence of intense SMU, intense users reported higher levels of family support and life satisfaction than nonintense users, and similar levels of psychological complaints. In all countries, intense users reported more friend support than nonintense users. The findings regarding problematic SMU were more consistent: In all countries, problematic users reported lower well-being on all domains than nonproblematic users. Observed differences in country-level prevalence rates of intense and problematic SMU could not be explained by mobile Internet access. CONCLUSIONS: Adolescents reporting problematic SMU are particularly at risk of lower well-being. In many countries, intense SMU may be a normative adolescent behavior that contributes positively to specific domains of their well-being.

• Klíčová slova
• Adolescents, Cross-national research, HBSC, Problematic social media use, Social media use, Well-being,
• MeSH
• Bayesova věta MeSH
• chování mladistvých * MeSH
• dítě MeSH
• duševní zdraví statistika a číselné údaje   MeSH
• internet MeSH
• kvalita života MeSH
• lidé MeSH
• mladiství MeSH
• návykové chování * MeSH
• osobní uspokojení * MeSH
• psychický stres MeSH
• sociální média statistika a číselné údaje   MeSH
• srovnání kultur MeSH
• zdravé chování * MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

European self-regulation to ensure children's safety on social networking sites (SNS) stipulates that children should be old enough to use their services. However, a growing number of children are not. Drawing on data from the Net Children Go Mobile (NCGM) project (2012-2014), this study focuses on children aged 9-12 years, among whom 42% have a profile on Facebook, many with the explicit permission of their parents, despite the explicit policy allowing only children aged 13 years and older. Yet, such parental influence is not the only factor contributing to an underage child having a profile. Hierarchical logistic regressions were conducted in which the odds of having a profile on Facebook among children aged 9-12 years (N=1,723) were predicted. After controlling for demographic variables, Facebook use was connected to daily use of the Internet from home (bedroom and other places), looking for new friends online, and online disinhibition (e.g., being able to talk about different things on the Internet than when speaking to people face-to-face). In terms of parental mediation, restrictions lower the probabilities of an underage child having a SNS profile, while active parental mediation increases the odds. In addition to parental mediation, peer mediation increases the chances of underage Facebook use, indicating that children play a significant role in influencing each other in adoption of new technologies and applications. Finally, digital skills related to communication have a significant effect, suggesting an integrated adoption of communicative practices online. Daily use of mobile devices had no effect in the model.

• MeSH
• dítě MeSH
• komunikace * MeSH
• lidé MeSH
• přátelé * MeSH
• rodiče MeSH
• sociální média statistika a číselné údaje   MeSH
• sociální sítě * MeSH
• vztahy mezi rodiči a dětmi * MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH