Background and AimsSmartphone addiction, its association with smartphone use, and its predictors have not yet been studied in a European sample. This study investigated indicators of smartphone use, smartphone addiction, and their associations with demographic and health behaviour-related variables in young people.MethodsA convenience sample of 1,519 students from 127 Swiss vocational school classes participated in a survey assessing demographic and health-related characteristics as well as indicators of smartphone use and addiction. Smartphone addiction was assessed using a short version of the Smartphone Addiction Scale for Adolescents (SAS-SV). Logistic regression analyses were conducted to investigate demographic and health-related predictors of smartphone addiction.ResultsSmartphone addiction occurred in 256 (16.9%) of the 1,519 students. Longer duration of smartphone use on a typical day, a shorter time period until first smartphone use in the morning, and reporting that social networking was the most personally relevant smartphone function were associated with smartphone addiction. Smartphone addiction was more prevalent in younger adolescents (15–16 years) compared with young adults (19 years and older), students with both parents born outside Switzerland, persons reporting lower physical activity, and those reporting higher stress. Alcohol and tobacco consumption were unrelated to smartphone addiction.DiscussionDifferent indicators of smartphone use are associated with smartphone addiction and subgroups of young people have a higher prevalence of smartphone addiction.ConclusionsThe study provides the first insights into smartphone use, smartphone addiction, and predictors of smartphone addiction in young people from a European country, which should be extended in further studies.
AimsTo test the efficacy of a web‐based alcohol intervention with and without guidance.DesignThree parallel groups with primary end‐point after 6 weeks.SettingOpen recruitment in the German working population.ParticipantsAdults (178 males/256 females, mean age 47 years) consuming at least 21/14 weekly standard units of alcohol (SUA) and scoring ≥ 8/6 on the Alcohol Use Disorders Identification Test.InterventionFive web‐based modules including personalized normative feedback, motivational interviewing, goal setting, problem‐solving and emotion regulation during 5 weeks. One intervention group received an unguided self‐help version (n=146) and the second received additional adherence‐focused guidance by eCoaches (n=144). Controls were on a waiting list with full access to usual care (n=144).MeasurementsPrimary outcome was weekly consumed SUA after 6 weeks. SUA after 6 months was examined as secondary outcome, next to numbers of participants drinking within the low‐risk range, and general and work‐specific mental health measures.FindingsAll groups showed reductions of mean weekly SUA after 6 weeks (unguided: −8.0; guided: −8.5; control: −3.2). There was no significant difference between the unguided and guided intervention (P=0.324). Participants in the combined intervention group reported significantly fewer SUA than controls [B=−4.85, 95% confidence interval (CI)=−7.02 to −2.68, P < 0.001]. The intervention groups also showed significant reductions in SUA consumption after 6 months (B=−5.72, 95% CI=−7.71 to −3.73, P < 0.001) and improvements regarding general and work‐related mental health outcomes after 6 weeks and 6 months.ConclusionsA web‐based alcohol intervention, administered with or without personal guidance, significantly reduced mean weekly alcohol consumption and improved mental health and work‐related outcomes in the German working population.
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