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BACKGROUND: Most individuals with severe mental illness (SMI) strongly prefer independent living over living in an institution. Independent Supported Housing (ISH) provides housing rehabilitation for persons with SMI in their accommodations. However, most individuals who need housing rehabilitation live in institutional housing settings (housing rehabilitation as usual: HAU). We investigated which housing rehabilitation setting is effective on which variable in the long term to support service users to form an informed preference for either housing rehabilitation setting. METHODS: We conducted a two-year longitudinal observational non-inferiority study to test the effectiveness of ISH in improving participants' social inclusion, quality of life, emotional social support, capabilities, symptom severity, functioning, service utilisation and costs. Participants were assessed at baseline and after six, twelve, and 24 months. Mixed effects models were computed to test between-group and within-group effects. RESULTS: The study included 83 participants in ISH (n = 31) and HAU (n = 52) housing rehabilitation settings with a mean age of 36.2 years. Most participants were male (64%) and had a primary psychotic or schizophrenic (35%) or an affective diagnosis (24%). During the study, ISH participants significantly improved their quality of life (ß = 0.54; 95% CI: 0.26 to 0.82), symptoms (ß = -0.32; 95% CI: -0.60 to -0.03), and capabilities (ß = 4.46; 95% CI: 0.14 to 8.77) and decreased psychiatric hospitalisations (p = 0.04). HAU participants improved their quality of life (ß = 0.40; 95% CI: 0.12 to 0.69). Housing and rehabilitation support costs were almost half with ISH than with HAU. CONCLUSION: ISH has been shown to be much less expensive than HAU and was associated with several improvements like reduced psychiatric hospitalisations and improved quality of life. Therefore, our findings strongly argue for a preference-driven provision of housing rehabilitation services and to end the institutionalisation of persons with SMI. TRIAL REGISTRATION: The study was registered on December 04, 2018, at ClinicalTrials.gov (NCT03815604).

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PURPOSE: The inclusion of people with mental disorders (MD) into competitive employment has become an important political and therapeutic goal. The present paper investigates meta-analytically to which extent people with MD who were unemployed or on sick leave due to MD prefer to work in a competitive job environment. METHODS: For this systematic review and meta-analysis of proportions, we searched Medline, PsycInfo, Cinahl, Google Scholar, and reference lists for peer-reviewed publications from 1990 to Dec 2023, which provided data on the job preferences of people with MD. Two authors independently conducted full-text screening and quality assessments. Pooled proportions of job preferences were calculated with a random-effects meta-analysis of single proportions, and subgroup analyses were performed to examine characteristics associated with job preferences. RESULTS: We included 30 studies with a total of 11,029 participants in the meta-analysis. The overall proportion of participants who expressed a preference for competitive employment was 0.61 (95%-CI: 0.53-0.68; I2 = 99%). The subgroup analyses showed different preference proportions between world regions where the studies were conducted (p < 0.01), publication years (p = 0.03), and support settings (p = 0.03). CONCLUSION: Most people with MD want to work competitively. More efforts should be given to preventive approaches such as support for job retention. Interventions should be initiated at the beginning of the psychiatric treatment when the motivation to work is still high, and barriers are lower. TRAIL REGISTRATION: The protocol is published in the Open Science registry at https://osf.io/7dj9r.

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The psychopharmacological treatment of patients with schizophrenia or depression is often accompanied by serious side effects. In particular, the clinical findings of weight gain are worrying, as this side effect can lead to various medical sequelae in the future. However, the treatment of metabolic changes in psychiatric patients is often neglected or unsuccessful. An improved knowledge of possible therapeutic approaches is needed. The aim of this study was to provide an overview of the utilisation and effectiveness of probiotics in reducing weight gain in patients with severe mental illness. A scoping review of studies published until 15 June 2022 was conducted to identify studies using probiotics in people with schizophrenia or depression. We systematically searched the databases EMBASE, PubMed (MEDLINE), Web of Science and SCOPUS with a predefined search string. In addition, reference lists of relevant publications were examined for additional studies. The studies were assessed by two reviewers. The primary outcomes were weight-related measurements. The secondary outcomes were metabolic blood parameters and gut microbiota. Four studies ultimately met the inclusion criteria. Two studies in which probiotics were administered did not find significant effects on pharmacologically induced weight gain. The other two studies examined the effects of synbiotics (a combination of probiotics and prebiotics). Interestingly, less weight gain was observed in individuals with this combined intervention. Adjustments in diet can be helpful and are generally well-accepted interventions in the fight against pharmacologically induced weight gain. The clinical use of probiotics and prebiotics (or synbiotics) as dietary interventions may represent a promising additional strategy in this regard. However, the few studies available showed no clear conclusions.

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Compared to the general population, people with severe mental illness (SMI) have an increased risk of weight gain and metabolic syndrome, but also of malnutrition, in part due to unhealthy lifestyle behaviours. The aim of this cross-sectional study was to identify barriers to healthy eating, including nutrition knowledge and skills in people with SMI. For this purpose, we compared the means of anthropometric data such as body mass index, waist-to-hip ratio, and interview data on nutrition knowledge and skills, health-related variables, eating behaviours, personality, motivation, and attitudes in 65 inpatients and 67 outpatients of the Psychiatric Hospital of the University of Zurich and 64 healthy adults using ANOVA and chi-squared tests. The results showed that patients with SMI had worse nutritional status and lifestyle compared to the healthy controls, including disordered (e.g., night eating) and unhealthy (e.g., high intake of sugary foods) eating habits. However, levels of nutrition knowledge, cooking and food skills, and motivation to eat healthily were not significantly lower in the psychiatric patients than in the healthy adults and were not associated with weight change. Based on our findings, nutritional support for people with SMI is urgently needed and should include not only educational but also behavioural and long-term approaches.

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Despite widespread support for Independent Supported Housing (ISH) interventions, psychiatric housing rehabilitation still commonly takes place in residential care facilities (RCFs). This study compares preferences, attitudes and working conditions of mental healthcare professionals (MHCPs) in ISH and RCFs using an online survey. The survey included setting preferences, stress and strain at work, recovery attitudes, stigmatisation, and factors experienced as particularly important or obstructive in housing rehabilitation. Data were analysed using quantitative and qualitative approaches. Of the 112 participating MHCPs, 37% worked in ISH and 63% in RCFs. Professionals' education, work-related demands and influence at work were higher in ISH, stigmatising attitudes were higher in RCFs. MHCPs in both settings endorsed ISH. The support process was seen as particularly important whereas stigmatisation, regulatory and political requirements were seen as obstructive for successful housing rehabilitation. Results indicate that social inclusion of individuals with severe mental illness is seldom feasible without professional support.

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Background: No randomised controlled study (RCT) on the effectiveness of Independent Supported Housing (ISH) vs. housing as usual (HAU) settings for non-homeless individuals with severe mental illness (SMI) has been conducted to date because of limited feasibility. Alternative designs, such as observational studies, might be suitable for providing adequate evidence if well conducted. To test this hypothesis, this article reports on a prospective, direct comparison of the designs of two parallel studies in this field. Methods: A two-centre, parallel-group non-inferiority effectiveness study was conducted at two locations in Switzerland using identical instruments and clinical hypotheses. One centre applied an RCT design and the other an observational study (OS) design with propensity score methods (ClinicalTrials.gov: NCT03815604). The comparability of the two study centres was investigated in terms of participants, procedures, and outcomes. The primary outcome was social inclusion and the secondary outcomes were quality of life and psychiatric symptoms. Results: The study included 141 participants (RCT: n = 58; OS: n = 83). Within one year, 27% study dropouts occurred (RCT: 34%; OS: 22%). A similar balance of sample characteristics was achieved in the RCT and the OS using propensity score methods (inverse probability of treatment weighting). After one year, ISH was non-inferior to the control condition regarding social inclusion (mean differences [95% CI]) in the RCT (6.28 [-0.08 to 13.35]) and the OS (2.24 [-2.30 to 6.77]) and showed no significant differences in quality of life (RCT: 0.12 [-0.52 to 0.75]; OS: 0.16 [-0.26 to 0.58]) and symptoms (RCT: -0.18 [-0.75 to 0.40]; OS: 0.21 [-0.17 to 0.60]) in both study centres. However, strong and persistent preferences for ISH in the RCT control group reduced participants' willingness to participate. Because of several limitations in the RCT, the results of the RCT and the OS are not comparable. Conclusion: Participants were comparable in both study sites. However, there were significant problems in conducting the RCT because of strong preferences for ISH. The OS with propensity score methods provided results of more stable groups of participants and revealed balanced samples and valid outcome analysis. Our results do not support further investment in RCTs in this field.

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There is a lack of validated assessment instruments that capture all facets of cooking skills (CS) and food skills (FS). The goal of this study was to validate the German version of a questionnaire to assess a broad range of CS and FS and to examine its relationship with nutrition knowledge, attitude toward a healthy diet, and food intake. The German version was developed using forward−backward translation. An online survey was completed by students (n = 141), participants from the general Swiss population (n = 50), and nutrition experts (n = 18), including the CS and FS items along with nutrition knowledge, food frequency items, attitude toward a healthy diet and sociodemographic variables. The reliability and construct validity were examined. Results: For all of the samples, Cronbach's alpha was between 0.85 and 0.88 for CS items and between 0.84 and 0.86 for FS items. The scales were strongly correlated (r = 0.60−0.77, p < 0.01). Nutrition experts showed higher confidence in their CS and FS than students and the participants of the general Swiss population (p < 0.001). CS and FS correlated weakly to moderately with practical nutrition knowledge, attitude toward a healthy diet, and the diet quality index. The German version is an efficient, valid, and highly reliable instrument that seems sensitive to changes. FS, compared to CS, might be more important for a healthy diet.

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Background: Mental disorders are often associated with unhealthy eating behaviors and metabolic comorbidities. This can result in reduced life expectancy and poorer quality of life in people with mental disorders. This study protocol describes an observational study that examines the nutritional status and eating behaviors of people with severe mental illness (SMI) and the need for psychiatric treatment who were between 18 and 65 years old. In addition, the study focuses on possible barriers for healthy eating that have not yet been examined in this population. Methods: A total of 192 study participants will be recruited: 64 inpatients and 64 outpatients from the Psychiatric Hospital of the University of Zurich with SMI as well as 64 healthy individuals from the general population as a control group. The participants will be interviewed regarding their nutritional status, eating behavior, nutrition knowledge, food and cooking skills, personality, attitudes and feelings toward nutrition. In addition, the severity of symptoms and several control variables (e.g., sociodemographic variables and physical activity) will be assessed. For the patient samples, data will comprise routine medical data, and, if available, routine laboratory data. Inpatients will be interviewed once at the beginning of their treatment. Outpatients will be interviewed at the beginning and after 3 months of treatment (same interview questions). Healthy adults of the control group will be interviewed once at any time during the recruitment period. Discussion: The described study will identify nutritional needs and possible barriers to healthy eating in patients with mental disorders. The results will help to define recommendations for nutritional risk screening in psychiatric patients and for planning effective nutritional interventions.

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BACKGROUND: Home treatment (HT) has been proposed as a patient-centred alternative to acute mental inpatient care although evidence of patient-reported outcomes has remained limited. AIMS: The aim of this study was to examine patient experiences and satisfaction with HT. METHODS: This retrospective mixed-methods study included telephone interviews of 159 patients receiving HT between 2016 and 2019. Associations between patients' characteristics and global satisfaction (ZUF-8 scale) were assessed. Differences between HT patients and inpatients were tested on a propensity score -matched inpatient sample. Qualitative analyses were conducted using thematic analysis. RESULTS: Global satisfaction with HT was slightly higher than in the inpatient sample (p = 0.019). There was no relationship between satisfaction and patients' characteristics, such as gender, age, main psychiatric diagnosis, and treatment duration, but satisfaction was higher for patients who perceived HT as their only treatment option. Participants particularly appreciated the person-centred care and practical support whereas staff continuity and medical treatment were main sources of dissatisfaction. CONCLUSION: The results indicate that HT seems to be a more patient-centred alternative to inpatient treatment and might close a gap in the psychiatric care of patients who preferred not to use inpatient services but needed higher treatment intensity than outpatient treatment.

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People with severe mental illness (SMI) are often in poor physical health, resulting in higher mortality and reduced life expectancy compared to the general population. Although eating habits are one of the main predictors of physical health, few studies assess the nutritional status and eating behavior of people with SMI. The aim of this study was to examine the nutritional status and risk of malnutrition in people with SMI who were in need of intensive psychiatric treatment. The cross-sectional study included 65 inpatients and 67 outpatients with psychotic or depressive disorders from the Psychiatric Hospital of the University of Zurich. Patients' assessments at admission included anthropometric measurements, such as weight and height, and interview data including severity of symptoms and functioning (SCL-K-9, PHQ-D, CGI, m-GAF), personal and medical data, nutrition risk screening tools (adapted NRS, MNA-SF), and laboratory values. The results showed that 32% of the inpatients and 34% of the outpatients were at risk of malnutrition, which was associated with higher levels of psychiatric symptoms and lower levels of functioning. Regardless, the body mass index (BMI) was overweight in both groups (mean BMIinpatients = 25.3, mean BMIoutpatients = 27.9). These results indicate that a substantial proportion of psychiatric patients seems to be at risk of malnutrition, despite most being overweight, and hence they might benefit from nutritional support during their psychiatric treatment. Moreover, nutritional risk screening tools specifically developed for the mental healthcare setting are needed.

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BACKGROUND: Home treatment (HT) is a patient-centred and cost-effective alternative to acute psychiatric inpatient care. However, the progress of its implementation and utilisation in routine care is slow. AIMS: The aim of this study was to examine the knowledge and attitude towards HT among healthcare professionals. METHOD: This observational study included telephone-based semi-structured interviews of 140 referring healthcare professionals including 35 self-referring patients to a large psychiatric hospital in Switzerland during 6 months in 2020. We assessed their knowledge, attitude and experience with HT along with sociodemographic characteristics, professional background and the intention for the referral. We completed the interviews with routine medical data of the referred patients such as diagnoses or symptom severity. RESULTS: Regarding referrals for inpatient treatment (involuntary and voluntary), half of the referring healthcare professionals and 80% of the self-referring patients had no prior experience or knowledge of HT. Knowledge of HT differed in the order of the participants' working places. We found that most participants were uncertain about the inclusion/exclusion criteria for HT. Despite the low levels of knowledge, attitudes towards HT were overall positive. CONCLUSIONS: Our results indicate that a proportion of the patients referred for inpatient treatment might have been eligible for HT too. The referring healthcare professionals' and patients' unfamiliarity and uncertainty with HT seems to be an important reason that home-based treatment approaches are still underused, although they are viewed very positively. Besides providing more information to potential referring health professionals, psychiatric hospitals should always carry out a standardized evaluation if HT is an option in patients who are referred for inpatient treatment.

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OBJECTIVE: For supported accommodation settings in mental health care, there is no comprehensive list of criteria for German-speaking countries available. The development and testing of a fidelity scale for independent housing is described. METHODS: By means of a cross-country cooperation a fidelity scale was developed and was utilized in interviews with heads of 87 housing services and institutions in Germany and Switzerland. RESULTS: The fidelity scale consists of 31 items in 4 topic fields. Outreach services demonstrated a slightly higher fidelity compared to residential care. This was particularly true for the topic fields 'Housing conditions' and 'Inclusion orientation'. We found not differences in the topic fields 'Staff/team' and 'Support conditions'. CONCLUSIONS: With this fidelity scale there is a testable list of criteria for independent housing services in mental health care available for the first time in German-speaking countries.

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BACKGROUND: Independent supported housing (ISH)-services to support independent housing are recommended by current guidelines. However, there is little evidence of ISH models for non-homeless people with severe mental illness (SMI). The aim of this study was to examine the effectiveness of ISH by comparing the clinical outcomes of a newly implemented ISH service with regular housing and support services. METHODS: A total of 58 adults with a broad spectrum of mental disorders experiencing housing problems were randomly assigned to either the intervention group (IG) with the possibility to use the ISH service in Zurich providing targeted, individual and flexible support for housing problems or to the control group (CG) with regular housing and support services currently available (trial registration at ClinicalTrials.gov: NCT03815604). RESULTS: After 12 months, almost all participants of the IG were able to live independently and need for inpatient treatment could be significantly reduced. Service utilization varied between 2 and 79 h. In the CG, 70% of the participants wanted to join a waiting list for the ISH service. The results indicated that IHS was comparable to regular housing and support services in terms of social inclusion and other social and clinical outcomes such as quality of life, capabilities, needs, mental state and functioning (p's > 0.05). The costs of service utilization were on average 115 Swiss Francs (about 124 USD) per participant per month. CONCLUSIONS: ISH is an effective service in housing rehabilitation in terms of social and clinical outcomes and costs. ISH is strongly preferred by service users. In line with the UN Convention on the Rights of Persons with Disabilities, access to ISH services for non-homeless people with SMI should be improved. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, identifier: NCT03815604, December 04, 2019.

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Home treatment (HT) has been proposed as an alternative to inpatient treatment for individuals in acute mental crises. However, there is limited evidence concerning the effectiveness of HT to date. The aim of this study was to investigate which patients benefit most from HT. The concept and utilization of two HT services in Switzerland were retrospectively compared based on routine medical data of all patients who were treated in one of the two HT services between July 2016 and December 2017. We examined which patient characteristics were related to successful replacement of hospital care by HT based on a calculated success score using binary regression analyses. The whole sample included 408 individuals with an average age of 43 years and of whom 68% were female. As a result of conceptual similarities, in both HT settings, the typical patient was middle-aged, female and having an affective disorder as the main diagnosis. Half of the treatment cases met the criteria of successful replacement of hospital care (> 50% of the total treatment episodes in HT, treatment duration < 40 days and treatment terminated by mutual agreement). The results of the regression analyses indicated that patients with a lower symptom severity at admission (lower HoNOS score) and those who were employed had more likely a successful replacement of hospital care.The findings suggest that patients with acute mental disorders who have a certain level of functioning and social support might benefit most from HT in the sense of successful replacement of hospital care.

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BACKGROUND: Eating disorders (ED) and disordered eating (DE) among male elite athletes share some of the characteristics seen in female elite athletes and the population, but also exhibit some key differences. OBJECTIVE: Scoping review of ED and DE in male elite athletes. METHODS: In May 2020, a comprehensive systematic literature search was conducted for DE and ED in male elite athletes. RESULTS: We identified 80 studies which included 47 uncontrolled, 14 controlled studies, one interventional trial and 18 reviews. DISCUSSION: There was a wide range of definitions of DE and a high level of heterogeneity regarding competitive level, age and sport type. In adult male elite athletes, ED prevalence rates up to 32.5% were found, higher than in the general population. Prevalence was not higher in young/adolescent male elite athletes. The most frequently associated factor was competing in weight-sensitive sports. Male elite athletes tended to exhibit less body dissatisfaction than controls and were not always associated with DE. There were no studies looking at the prognosis or reporting an evidence-based approach for the management of DE in male elite athletes. CONCLUSION: Existing literature indicates high prevalence of DE and ED in male elite athletes, with a wide range of aetiopathogenesis. There is a need for longitudinal studies to characterise the pathology and long-term outcomes, as well as develop standardised tools for assessment and treatments.

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BACKGROUND: The social environment might play an important role in explaining people's physical activity (PA) behavior. However, little is known regarding whether personal networks differ between physically active and physically inactive people. This study aimed to examine the relationship between personal network characteristics and adults' physical (in)activity. METHODS: An egocentric social network study was conducted in a random sample in Switzerland (n = 529, mean age of 53 years, 54% females). Individual and personal network measures were compared between regular exercisers and non-exercisers. The extent of these factors' association with PA levels was also examined. RESULTS: Non-exercisers (n = 183) had 70% non-exercising individuals in their personal networks, indicating homogeneity, whereas regular exercisers (n = 346) had 57% regularly exercising individuals in their networks, meaning more heterogeneous personal networks. Additionally, having more regular exercisers in personal networks was associated with higher PA levels, over and above individual factors. Respondents with an entirely active personal network reported, on average, 1 day of PA more per week than respondents who had a completely inactive personal network. Other personal network characteristics, such as network size or gender composition, were not associated with PA. CONCLUSION: Non-exercisers seem to be clustered in inactive networks that provide fewer opportunities and resources, as well as less social support, for PA. To effectively promote PA, both individuals and personal networks need to be addressed, particularly the networks of inactive people (e.g., by promoting group activities).

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BACKGROUND: Social inclusion is essential for an adequate rehabilitation process for people with serious mental illness (SMI). Various supported housing settings aim to promote housing competencies and social inclusion in service users. Nevertheless, there is a strong preference in service users for independent living. We aim to evaluate the effectiveness and efficiency of Independent Housing and Support (IHS) compared to institutionalised residential care settings and other treatment as usual conditions (RCS/TAU) in two cities in Switzerland. METHODS: This is a prospective multi-centre, four-arm, non-inferiority cohort study investigating the effectiveness and efficiency of IHS and RCS/TAU for people with SMI. Effectiveness will be measured by a standardised measure of social inclusion as primary outcome as well as by measures of functioning and well-being. Efficiency will be analysed on the basis of service usage and costs associated with the different housing settings. Participants will be consecutively recruited and subsequently enrolled between April 2019 and December 2020 and assessed at baseline and after six, twelve and after 24 months. At one study site, 56 participants will be randomly assigned to one of the conditions; the other study site will be conducted as an observational study investigating 112 admitted participants. DISCUSSION: While the UN Convention of the Rights of People with Disabilities aims to promote the opportunity to choose one's place of residence, the limited supply of alternative forms of housing does not guarantee genuine freedom of choice. Increased diversification and flexibility of housing support is essential. If IHS shows non-inferiority in terms of their effectiveness and efficiency, users should be allowed to choose their kind of housing support. TRIAL REGISTRATION: ClinicalTrials.gov: NCT03815604, December 04, 2019.

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Stigmatization towards individuals with mental illness is common among mental healthcare professionals, yet poses a key concern regarding the provision of effective support and therapy for those undergoing psychiatric treatment. In this study, we examined to what extent recovery attitudes among mental healthcare professionals are associated with stigmatization. We conducted a survey among staff members (n = 110) of a large psychiatric hospital working on acute or semi-acute wards one year following a multi-professional training session, which included the promotion of recovery orientation as a therapeutic approach. The survey included measures such as gender, age, professional background, years of working experience, ward setting (mostly open or closed doors), recovery attitudes (RAQ-7), and stigmatization of individuals with mental illness (OMS-HC scale). Mental healthcare professionals who attended training in recovery orientation significantly more frequently stated to know the concept of recovery compared to those who did not receive training. In addition, recovery attitudes were more optimistic and significantly associated with levels of stigmatization among professionals who were familiar with the concept of recovery. Despite the cross-sectional study design that did not test causal links, these findings suggest that enhancing recovery attitudes through training may lead to less stigmatization among mental healthcare professionals.

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Treatment guidelines recommend home treatment (HT) as an effective alternative to inpatient treatment for individuals with severe, acute mental illness (SAMI). Nevertheless, HT is largely unfamiliar in German-speaking countries. Here we examined the utilization and effectiveness of HT services newly implemented in a large hospital setting in Switzerland. We used a naturalistic observational study design including patients (n = 201, 18-65 years, 65.7% females) with SAMI who received HT between June 2016 and December 2017. HT patients were compared with a crude inpatient sample (n = 1078) and a matched inpatient sample (n = 201). Propensity-score matching was used to control for personal characteristics. Treatment outcomes were compared between HT patients and the matched inpatients based on routinely obtained medical data. The results showed that the HT sample consisted of more females (+21%), older (+4 years), and better educated (+10%) patients with more affective disorders (+13%) and less substance use disorders (-15%) as compared with the crude inpatient sample. The severity of symptoms was the same. After matching, there were no significant differences in the proportion of readmissions (36%), the duration until readmission and scores of the Health of the Nation Outcome Scales (HoNOS). The treatment duration of HT patients was significantly longer and, post-treatment, scores on the Global Assessment of Functioning scale (GAF) were significantly better. We conclude that HT is an effective treatment option for patients with SAMI also in Switzerland concerning the reduction of hospital days, the improvement of symptoms and functioning and readmission rates. HT cannot fully replace hospital admissions in all cases and HT may be beneficial for particular groups of patients (e.g., females and individuals with affective disorders). The study further shows the potential value of propensity-score matching in health care service research.

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OBJECTIVE: To develop and validate a brief scale to assess knowledge about the energy content of meals for adults in Switzerland. METHODS: Based on a random sample, the scale was developed using a Rasch model approach. To assess validity and reliability, the model was replicated and scores were compared with another nutrition knowledge measure and with dietitian trainees' scores. A test-retest was performed. RESULTS: Survey studies included 477, 505, and 136 participants from the general population and 59 dietician trainees. The Rasch scale consisted of 11 multiple-choice items ranging from easy to difficult and correlated with general nutrition knowledge (r = .47; P < .001; r2 = .22). Dietitian trainees achieved higher scores (P < .001; d = 2.17) than did people from the general population; test-retest reliability results were r = .73, P < .001, and r2 = .53. CONCLUSIONS AND IMPLICATIONS: Results showed that the scale is efficient, valid, and reliable for use in the general population in Switzerland.

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