Karin Waldherr

Gene–environment interaction in anorexia nervosa: relevance of non-shared environment and the serotonin transporter gene

Gene–environment interaction in anorexia nervosa: relevance of non-shared environment and the serotonin transporter gene

Internet-delivered cognitive–behavioural therapy v. conventional guided self-help for bulimia nervosa: long-term evaluation of a randomised controlled trial

BACKGROUND Cognitive-behavioural therapy (CBT)-based guided self-help is recommended as a first step in the treatment of bulimia nervosa. AIMS To evaluate in a randomised controlled trial (Clinicaltrials.gov registration number: NCT00461071) the long-term effectiveness of internet-based guided self-help (INT-GSH) compared with conventional guided bibliotherapy (BIB-GSH) in females with bulimia nervosa. METHOD A total of 155 participants were randomly assigned to INT-GSH or BIB-GSH for 7 months. Outcomes were assessed at baseline, month 4, month 7 and month 18. RESULTS The greatest improvement was reported after 4 months with a continued reduction in eating disorder symptomatology reported at month 7 and 18. After 18 months, 14.6% (n = 7/48) of the participants in the INT-GSH group and 25% (n = 7/28) in the BIB-GSH group were abstinent from binge eating and compensatory measures, 43.8% (n = 21/48) and 39.2% (n = 11/28) respectively were in remission. No differences regarding outcome between the two groups were found. CONCLUSIONS Internet-based guided self-help for bulimia nervosa was not superior compared with bibliotherapy, the gold standard of self-help. Improvements remain stable in the long term.

Prevalence of Eating Disorder Risk and Associations with Health‐related Quality of Life: Results from a Large School‐based Population Screening

OBJECTIVE The objective of this study was to investigate the prevalence of eating disorder (ED) risk as well as associated psychopathology and health-related quality of life (HrQoL) in a large population sample of Austrian adolescents. METHOD A sample of 3610 adolescents aged 10-18 years was recruited from 261 schools representative for the Austrian population. The SCOFF questionnaire was used to identify participants at risk for EDs, and the Youth Self-Report and KIDSCREEN were used to assess general psychopathology and HrQoL. RESULTS In total, 30.9% of girls and 14.6% of boys were screened at risk for EDs. SCOFF scores were significantly associated with internalising and externalising behavioural problems as well as HrQoL after controlling for sex, age and body mass index. The SCOFF score further turned out to be an independent predictor of HrQoL. DISCUSSION The high prevalence of ED risk among Austrian adolescents points out the need for prevention in this field. Variables indicating eating pathology should be included in general mental health screenings.

Participation by different stakeholders in participatory evaluation of health promotion: A literature review

Participatory evaluation has been increasingly used in health promotion (HP) and various forms of participatory evaluation have been put into practice. Simultaneously, the concept of participation has become more important for evaluation research in general, which is equally diverse and the subject of various discourses. This study addresses the issue of how the concept of participation has been established in HP evaluation practice. An analytical framework was developed, which served as a basis for a literature review, but can also be used as a general framework for analyzing and planning the scope of participation by various stakeholders within different phases of participatory evaluation. Three dimensions of participation, which refer to decision making (decision power, deliberation) and action processes are distinguished. The results show that only a few articles discussed participatory evaluation processes and participatory (evaluation) research was largely put forth by participatory (action) research in communities. The articles analyzed referred mostly to three stakeholder groups - evaluators, program staff and beneficiaries - and to participation processes in the initial evaluation phases. The application of the framework revealed that decision power seems to be held predominantly by program staff, evaluators seem to be more involved in action processes and beneficiaries in deliberation processes.

Implementing School Health Promotion in Austria Experiences From a Pilot Training Course

A pilot training course on school health promotion in Austria focused on supporting teachers and school heads during the implementation of the health-promoting school (HPS) concept. The participants talked about their experiences during the implementation phase in focus groups held in a feedback seminar at the end of the training course. The focus groups were analyzed by using an inductive approach. A coding method for thematic analysis was applied. Compatibility of the training course with the school setting was examined and supporting and hindering structures and processes pertaining to the schools and the training course are described. The results can be displayed in a model showing connections between the themes. Internal and external collaboration structures were identified as central aspects in the implementation phase. Particularly collaboration within the faculty is shown to be of importance when implementing the HPS approach. Voluntary cooperation especially of teachers, which is often connected with work in their spare time, is another aspect influencing the sustainability and therefore also the compatibility of the training course with the school setting. For future designs of teacher training courses in health promotion, the aspects of collaboration, teamwork, and collective commitment have to be taken into consideration.

Healthy Teens @ School: Evaluating and disseminating transdiagnostic preventive interventions for eating disorders and obesity for adolescents in school settings

Background The worldwide prevalence of overweight and obesity is at alarming levels. Nearly one in three children in Europe is overweight or obese. Disordered eating and body image concerns are equally widespread and increase risk for more chronic and severe weight-related problems. Research has shown that online interventions that address both healthy weight regulation and body image can reduce risk for eating disorders and obesity simultaneously and are feasible to implement in school settings. To date, evaluation and dissemination of such programs in Europe is scant. Methods The Healthy Teens @ School study is a multi-country cluster-randomized controlled trial (RCT) comparing the effectiveness of an unguided, online, multi-level intervention for promoting a healthy lifestyle and reducing problematic eating behavior, eating disorder and obesity risk among students aged 14 to 19 years with control condition. As part of the Horizon 2020 funded project ICare (GA No. 634757) the trial is conducted in Austria and Spain. Cluster randomization by school is used. The intervention is an adapted version of an evidence-based program developed in the USA (StayingFit). Participants of the intervention group are assigned to one of two possible program tracks based on the results of the initial online-assessment: Overweight adolescents are assigned to the “Weight Management” track emphasizing balanced eating and exercise for weight maintenance, and all other individuals are assigned to the “Healthy Habits” track which aims at promoting healthy habits related to e.g., nutrition, physical activity, sleep. The participants of both tracks work on ten modules (one 20–30 min module per week) during school hours and/or at home. Assessments are conducted at pre- and post-intervention, and at 6- and 12-months after baseline assessment. The primary outcome is intuitive eating, secondary outcomes are eating disorder symptomatology, body image concerns, body mass index, food intake, physical activity, self-esteem, stress coping, depression, and anxiety. Following the initial assessment, individuals in the control group do not have access to the prevention program but continue as normal and are only prompted to the assessments at all time points. At the end of the 12-month study they will get access to the program. Discussion The results from this study will add to the understanding of how to address eating and weight related problems in adolescents and will shed light on the feasibility of implementing online prevention programs in school routine in Austria and Spain. As part of the larger ICare project this RCT will determine how an adapted version of StayingFit is disseminated within Europe.

Assessing the costs and cost-effectiveness of ICare internet-based interventions (protocol)

Background Mental health problems are common and place a burden on the individual as well as on societal resources. Despite the existence of evidence-based treatments, access to treatment is often prevented or delayed due to insufficient health care resources. Effective internet-based self-help interventions have the potential to reduce the risk for mental health problems, to successfully bridge waiting time for face-to-face treatment and to address inequities in access. However, little is known about the cost-effectiveness of such interventions. This paper describes the study protocol for the economic evaluation of the studies that form the ICare programme of internet-based interventions for the prevention and treatment of a range of mental health problems. Methods An overarching work package within the ICare programme was developed to assess the cost-effectiveness of the internet-based interventions alongside the clinical trials. There are two underlying tasks in the ICare economic evaluation. First, to develop schedules that generate equivalent and comparable information on use of services and supports across seven countries taking part in clinical trials of different interventions and second, to estimate unit costs for each service and support used. From these data the cost per person will be estimated by multiplying each participants use of each service by the unit cost for that service. Additionally, productivity losses will be estimated. This individual level of cost data matches the level of outcome data used in the clinical trials. Following the analyses of service use and costs data, joint analysis of costs and outcomes will be undertaken to provide findings on the relative cost-effectiveness of the interventions, taking both a public sector and a societal perspective. These analyses use a well-established framework, the Production of Welfare approach, and standard methods and techniques underpinned by economic theory. Discussion/conclusion Existing research tends to support the effectiveness of internet-based interventions, but there is little information on their cost-effectiveness compared to ‘treatment as usual’. The economic evaluation of ICare interventions will add considerably to this evidence base.

Web-based indicated prevention of common mental disorders in university students in four European countries – study protocol for a randomised controlled trial

Background Mental disorders and their symptoms are highly prevalent in the university student population, and the transition from secondary to tertiary education is associated with a rise in mental health problems. Existing web-based interventions for the prevention of common mental disorders in student populations often focus on just one disorder and have not been designed specifically for students. There is thus a need for transdiagnostic, student-specific preventative interventions that can be widely disseminated. This two-arm, parallel group randomised controlled trial aims to evaluate the effectiveness and cost-effectiveness of a web-based transdiagnostic mental health problem prevention programme (PLUS) across several universities in four countries. Method Students (N = 5550) will be recruited through a variety of channels and asked to complete a personality assessment to determine whether they are at high risk for developing common mental disorders. Students at high risk will be randomly allocated to either PLUS or a control intervention, which provides practical support around issues commonly experienced at university. Students at low risk will be allocated to the control intervention. Both intervention groups will be assessed at baseline, 4 weeks, 3 months, 6 months and 12 months after randomisation. Depression and generalised anxiety, assessed using the Patient Health Questionnaire and the Generalised Anxiety Disorder scales, will form the primary outcomes in this study. Secondary outcome measures include alcohol and drug use, eating behaviour, self-esteem, and quality of life. The cost-effectiveness of the intervention will also be evaluated. Conclusions This study will contribute to understanding the role of transdiagnostic indicated web-based interventions for the prevention of common mental disorders in university students. It will also be one of the first studies to investigate the cost-effectiveness of such interventions. Trial Registration This trial was registered in the ISRCTN register (ISRCTN15570935) on 12th February 2016.

Prevalence of emotional and behavioral problems and subthreshold psychiatric disorders in Austrian adolescents and the need for prevention

PurposeEpidemiological data are crucial to plan adequate prevention strategies. Thus, this study aims at obtaining the prevalence of mental health problems (MHP) and subthreshold psychiatric disorders based on a representative sample of Austrian adolescents.MethodsAdolescents aged 10–18 were recruited from Austrian schools. Emotional and behavioral problems were determined using the Youth Self-Report (YSR); the point prevalence of subthreshold psychiatric disorders was assessed using structured diagnostic interviews. Sociodemographic variables including socioeconomic background, migration status, family structure, and place of residence were obtained. In addition, a non-school sample (unemployed adolescents, and child and adolescent psychiatry patients) was included to enhance representativeness and generalizability.Results3446 students, 37 unemployed adolescents, and 125 child and adolescent psychiatric patients provided analyzable YSR data sets. In the school sample, 16.5% scored in the clinically relevant range, while internalizing problems were more prevalent (17.8%) than externalizing problems (7.4%). These prevalences increased by 0.7–2.0% when the non-school sample was taken into account. A low socioeconomic status (SES) and living in single parent families were associated with higher problem scores. Regarding the interviewed sample (377 students and 407 parents), subthreshold psychiatric disorders were observed in 12.7% of students. 92.5% of them have not yet received any kind of help.ConclusionsA significant proportion of Austrian adolescents are at risk for MHP. A non-responder analysis indicates that the observed prevalence may be even underestimated. These findings emphasize the urgent need for targeted prevention, especially for reducing anxiety and depressive symptoms and for adolescents in disadvantaged families.

Interrelations between participant and intervention characteristics, process variables and outcomes in online interventions: A protocol for overarching analyses within and across seven clinical trials in ICare

Background It is well known that web-based interventions can be effective treatments for various conditions. Less is known about predictors, moderators, and mediators of outcome and especially interrelations between participant and interventions characteristics, process variables and outcomes in online interventions. Clinical trials often lack statistical power to detect variables that affect intervention effects and their interrelations. Within ICare, we can investigate the interrelation of potential predictor and process variables in a large sample. Method The ICare consortium postulated a model of interrelations between participant and intervention characteristics, process variables and outcomes in online interventions. We will assess general and disorder-specific interrelations between characteristics of the intervention, characteristics of the participants, adherence, working alliance, early response, and intervention outcomes in a sample of over 7500 participants from seven clinical trials evaluating 15 online interventions addressing a range of mental health conditions and disorders, using an individual participant data meta-analyses approach. Discussion/conclusion Existing research tends to support the efficacy of online mental health interventions, but the knowledge base regarding factors that affect intervention effects needs to be expanded. The overarching analyses using data from the ICare intervention trials will add considerably to the evidence.