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1.
Int J Eat Disord ; 55(8): 1143-1155, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35748112

RESUMO

OBJECTIVE: The primary aim was assessing the cost-effectiveness of an internet-based self-help program, expert-patient support, and the combination of both compared to a care-as-usual condition. METHOD: An economic evaluation from a societal perspective was conducted alongside a randomized controlled trial. Participants aged 16 or older with at least mild eating disorder symptoms were randomly assigned to four conditions: (1) Featback, an online unguided self-help program, (2) chat or e-mail support from a recovered expert patient, (3) Featback with expert-patient support, and (4) care-as-usual. After a baseline assessment and intervention period of 8 weeks, five online assessments were conducted over 12 months of follow-up. The main result constituted cost-utility acceptability curves with quality-of-life adjusted life years (QALYs) and societal costs over the entire study duration. RESULTS: No significant differences between the conditions were found regarding QALYs, health care costs and societal costs. Nonsignificant differences in QALYs were in favor of the Featback conditions and the lowest societal costs per participant were observed in the Featback only condition (€16,741) while the highest costs were seen in the care-as-usual condition (€28,479). The Featback only condition had the highest probability of being efficient compared to the alternatives for all acceptable willingness-to-pay values. DISCUSSION: Featback, an internet-based unguided self-help intervention, was likely to be efficient compared to Featback with guidance from an expert patient, guidance alone and a care-as-usual condition. Results suggest that scalable interventions such as Featback may reduce health care costs and help individuals with eating disorders that are currently not reached by other forms of treatment. PUBLIC SIGNIFICANCE STATEMENT: Internet-based interventions for eating disorders might reach individuals in society who currently do not receive appropriate treatment at low costs. Featback, an online automated self-help program for eating disorders, was found to improve quality of life slightly while reducing costs for society, compared to a do-nothing approach. Consequently, implementing internet-based interventions such as Featback likely benefits both individuals suffering from an eating disorder and society as a whole.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Intervenção Baseada em Internet , Análise Custo-Benefício , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Humanos , Internet , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida
2.
Int J Eat Disord ; 52(10): 1073-1076, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31578732

RESUMO

The aim of this editorial is to introduce a Special Issue of the International Journal of Eating Disorders on "Advancing Assessment of, and Interventions for, Eating Disorders via Innovative Uses of Technology." The 10 contributions to the Special Issue focus on the following main questions: (a) How can we optimize technology-enhanced interventions for eating disorders? (b) To what extent can technology help professionals to reach underserved populations? (c) How can innovative technology-enhanced tools improve assessment and treatment of eating disorders? The findings cumulatively suggest that technology can play a critical role in the detection and treatment of eating disorders, and may be used to enhance understanding of the etiology, maintenance, and course of these conditions. The contributions to this Special Issue have important implications for the conceptualization, design, and evaluation of technology-enhanced interventions as well as for the optimization of current assessment methods. Hopefully, they will stimulate future research in this quickly evolving field.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Tecnologia/métodos , Humanos
3.
J Health Pollut ; 9(23): 190912, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31497375

RESUMO

BACKGROUND: The worldwide emergence of multi-drug resistant bacteria has become a health crisis, as fewer or sometimes no antimicrobial agents are effective against these bacteria. The Rio Grande River is the natural boundary between the United States (US) and Mexico. It spans a border region between Texas, New Mexico and Mexico. Underserved populations on the Mexican side use the river for recreational purposes, while on the US side, the river is used for irrigation and as a source of drinking water. OBJECTIVES: The purpose of the present study was to evaluate the concentration of antibiotic residues, to determine the presence of genetic elements conferring antibiotic resistance and to characterize multi-drug resistant bacteria in the waters of the Rio Grande River. METHODS: Water samples were obtained from the Rio Grande River. Deoxyribonucleic acid (DNA) was extracted from both isolated bacteria and directly from the water. Amplification of selected genetic elements was accomplished by polymerase chain reaction. Identification and isolation of bacteria was performed through MicroScan autoSCAN-4. Fecal contamination was assessed by IDEXX Colilert. Antibiotic residues were determined by liquid chromatography and mass spectrometry. RESULTS: Antibiotics were found in 92% of both water and sediment samples. Antibiotic concentrations ranged from 0.38 ng/L - 742.73 ng/L and 0.39 ng/l - 66.3 ng/g dry weight in water and sediment samples, respectively. Genetic elements conferring resistance were recovered from all collection sites. Of the isolated bacteria, 91 (64.08%) were resistant to at least two synergistic antibiotic combinations and 11 (14.79%) were found to be resistant to 20 or more individual antibiotics. Fecal contamination was higher during the months of April and July. CONCLUSIONS: The 26 km segment of the Rio Grande River from Sunland Park NM to El Paso, TX and Juarez, Mexico is an area of concern due to poor water quality. The presence of multidrug resistant bacteria, antibiotics and mobile genetic elements may be a health hazard for the surrounding populations of this binational border region. Policies need to be developed for the appropriate management of the environmental natural resources in this border region. COMPETING INTERESTS: The authors declare no competing financial interests.

4.
Trials ; 20(1): 425, 2019 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-31300065

RESUMO

BACKGROUND: Non-suicidal self-injury (NSSI) is a clinically significant behavior affecting approximately 18% of adolescents and young adults worldwide. The importance of NSSI is supported by its association with a broad spectrum of mental disorders. Despite its high relevance, evidence-based, specific, time-, and cost-effective treatment approaches are scarce. Cognitive behavioral therapy (CBT) seems effective in reducing the frequency of NSSI in adolescents and young adults. However, young people are often reluctant to seek professional help and effective interventions adressing NSSI are not sufficiently available across all regions of Germany. Research indicates that the majority of youth with risk behavior (including NSSI) prefer technology-based interventions. To date, effective interventions for adolescents and young adults with NSSI that are deliverd online are not available. METHODS: The present project aims to develop and evaluate an online intervention for adolescents and young adults with NSSI based on the content of a recently evaluated face-to-face short-term program that includes elements of CBT and dialectical behavior therapy (DBT): "The Cutting Down Programme" (CDP). The efficacy of the new online CDP intervention will be tested in a randomized controlled trial (RCT) in which n = 700 youths engaging in repetitive NSSI will participate in either an online psychoeducation (n = 350) or online CDP (n = 350). Within a postline assessment four months after baseline (end of treatment; T1), and follow-up evaluations 12 and 18 months after baseline (follow-ups; T2 and T3), NSSI and comorbid symptoms as well as quality of life will be assessed. It is hypothesized that participants receiving online CDP report a greater reduction in the frequency of NSSI within the last three months at T2 (primary endpoint) compared to those receiving online psychoeducation. Exploratory analyses will focus on predictors of treatment outcome. DISCUSSION: We report on the development and evaluation of an online intervention for adolescents and young adults engaging in NSSI based on the CDP. If supported by empirical evidence, an online-based intervention for NSSI might help to overcome the limited availability of adequate interventions for youth. TRIAL REGISTRATION: German Clinical Trials Register, DRKS00014623 . Registered on 22 May 2018.


Assuntos
Comportamento do Adolescente , Terapia Cognitivo-Comportamental/métodos , Terapia do Comportamento Dialético/métodos , Intervenção Baseada em Internet , Comportamento Autodestrutivo/terapia , Terapia Assistida por Computador , Adolescente , Fatores Etários , Feminino , Alemanha , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Estudos Multicêntricos como Assunto , Educação de Pacientes como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Comportamento Autodestrutivo/diagnóstico , Comportamento Autodestrutivo/psicologia , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
5.
Trials ; 20(1): 91, 2019 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-30700318

RESUMO

BACKGROUND: The development of efficacious, cost-effective, and widely accessible programs for the prevention of eating disorders (EDs) is crucial in order to reduce the ED-related burden of illness. Programs using dissonance-based and cognitive behavioral approaches are most effective for the selective prevention of ED. Internet-based delivery is assumed to maximize the reach and impact of preventive efforts. However, the current evidence for Internet-based ED prevention is limited. The present trial evaluates the efficacy and cost-effectiveness of two new interventions (based on dissonance theory and principles of cognitive behavioral therapy (CBT)) that are implemented as add-ons to the existing Internet-based ED prevention program ProYouth. METHODS: The trial is one of five sub-projects of the German multicenter consortium ProHEAD. It is a three-arm, parallel, randomized controlled superiority trial. Participants will be randomized to (1) the online program ProYouth (active control condition) or (2) ProYouth plus a structured dissonance-based module or (3) ProYouth plus a CBT-based chat group intervention. As part of ProHEAD, a representative school-based sample of N = 15,000 students (≥ 12 years) will be screened for mental health problems. N = 309 participants at risk for ED (assessed with the Weight Concerns Scale (WCS) and the Short Evaluation of Eating Disorders (SEED)) will be included in the present trial. Online assessments will be conducted at baseline, at end of intervention (6 weeks), at 6 months follow-up, and - as part of ProHEAD - at 12 and 24 months follow-up. The primary outcome is ED-related impairment (assessed with the Child version of the Eating Disorder Examination-Questionnaire (ChEDE-Q)) at the end of the intervention. Secondary outcomes include ED-related symptomatology at follow-up, ED-related stigma, ED-related help-seeking, and acceptance of and compliance with the interventions. For the health economic evaluation data on costs of the interventions, healthcare utilization and health-related quality of life will be assessed. DISCUSSION: This is the first study augmenting a flexible prevention approach such as ProYouth with structured evidence-based modules in order to overcome some of the key limitations in the current practice of ED prevention. TRIAL REGISTRATION: German Clinical Trials Register (DRKS), DRKS00014679 . Registered on 25 April 2018.


Assuntos
Comportamento do Adolescente , Comportamento Infantil , Terapia Cognitivo-Comportamental/métodos , Comportamento Alimentar , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Hábitos , Internet , Terapia Assistida por Computador/métodos , Adolescente , Fatores Etários , Criança , Terapia Cognitivo-Comportamental/economia , Dissonância Cognitiva , Análise Custo-Benefício , Estudos de Equivalência como Asunto , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/economia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Alemanha , Custos de Cuidados de Saúde , Humanos , Internet/economia , Masculino , Estudos Multicêntricos como Assunto , Inquéritos e Questionários , Terapia Assistida por Computador/economia , Fatores de Tempo , Resultado do Tratamento
6.
Trials ; 20(1): 53, 2019 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-30646944

RESUMO

BACKGROUND: Depression is a serious mental health problem and is common in children and adolescents. Online interventions are promising in overcoming the widespread undertreatment of depression and in improving the help-seeking behavior in children and adolescents. METHODS: The multicentre, randomized controlled E.motion trial is part of the German ProHEAD consortium (Promoting Help-seeking using E-technology for ADolescents). The objective of the trial is to investigate the efficacy and cost-effectiveness of two online interventions to reduce depressive symptomatology in high-risk children and adolescents with subsyndromal symptoms of depression in comparison to an active control group. Participants will be randomized to one of three conditions: (1) Intervention 1, a clinician-guided self-management program (iFightDepression®); (2) Intervention 2, a clinician-guided group chat intervention; and (3) Control intervention, a psycho-educational website on depressive symptoms. Interventions last six weeks. In total, N = 363 children and adolescents aged ≥ 12 years with Patient Health Questionnaire-9 modified for Adolescents (PHQ-A) scores in the range of 5-9 will be recruited at five study sites across Germany. Online questionnaires will be administered before onset of the intervention, at the end of the intervention, and at the six-month follow-up. Further, children and adolescents will participate in the baseline screening and the one- and two-year school-based follow-up assessments integrated in the ProHEAD consortium. The primary endpoint is depression symptomatology at the end of intervention as measured by the PHQ-A score. Secondary outcomes include depression symptomatology at all follow-ups, help-seeking attitudes, and actual face-to-face help-seeking, adherence to and satisfaction with the interventions, depression stigma, and utilization and cost of interventions. DISCUSSION: This study represents the first randomized controlled trial (RCT) investigating efficacy and cost-effectiveness of two online interventions in children and adolescents aged ≥ 12 years at risk for depression. It aims to provide a better understanding of the help-seeking behavior of children and adolescents, potential benefits of E-mental health interventions for this age group, and new insights into so far understudied aspects of E-mental health programs, such as potential negative effects of online interventions. This knowledge will be used to tailor and improve future help offers and programs for children and adolescents and ways of treatment allocation. TRIAL REGISTRATION: German Register for Clinical Trials (DRKS), DRKS00014668 . Registered on 4 May 2018. International trial registration took place through the "international clinical trials registry platform" with the secondary ID S-086/2018.


Assuntos
Comportamento do Adolescente , Afeto , Comportamento Infantil , Depressão/terapia , Internet , Telemedicina/métodos , Terapia Assistida por Computador/métodos , Adolescente , Fatores Etários , Criança , Análise Custo-Benefício , Depressão/diagnóstico , Depressão/economia , Depressão/psicologia , Alemanha , Custos de Cuidados de Saúde , Humanos , Internet/economia , Estudos Multicêntricos como Assunto , Questionário de Saúde do Paciente , Ensaios Clínicos Controlados Aleatórios como Assunto , Autocuidado , Telemedicina/economia , Terapia Assistida por Computador/economia , Fatores de Tempo , Resultado do Tratamento
7.
Z Kinder Jugendpsychiatr Psychother ; 45(5): 403-413, 2017 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-27951744

RESUMO

Eating disorders are severe mental illnesses that are challenging to treat and often follow a chronic course. They are associated with immense impairment on the psychological, physical, interpersonal, and social level as well as signifi cant direct and indirect cost. Therefore, prevention and early intervention are of utmost importance. Based on a qualitative literature review, we summarized the empirical evidence for the effi cacy of universal and selective prevention of eating disorders. Programs available in German and/or English were included in the review. In addition to research on effi cacy and effectiveness, the areas of implementation, dissemination, and reach were identifi ed as key issues for future studies. Furthermore, more research is needed on the relationship of cost, benefi t, and risks of eating disorder prevention.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Adolescente , Criança , Efeitos Psicossociais da Doença , Medicina Baseada em Evidências , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/economia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Alemanha , Custos de Cuidados de Saúde , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Programas Nacionais de Saúde/economia , Avaliação de Processos e Resultados em Cuidados de Saúde , Psicoterapia/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto , Adulto Jovem
8.
Prev Sci ; 17(3): 306-13, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26581198

RESUMO

Only little is known about costs and effects (i.e., success) of dissemination strategies, although cost-effective dissemination strategies are crucial for the transfer of interventions into routine care. This study investigates the effects and cost-effectiveness of five school-based dissemination strategies for an Internet-based intervention for the prevention and early intervention of eating disorders. Three-hundred ninety-five schools were randomly assigned to one of five dissemination strategies. Strategies varied with respect to intensity from only sending advertisement materials and asking the school to distribute them among students to organizing presentations and workshops at schools. Effects were defined as the number of page visits, the number of screenings conducted, and the number of registrations to the Internet-based intervention. More expensive strategies proved to be more cost-effective. Cost per page visit ranged from 2.83€ (introductory presentation plus workshop) to 20.37€ (dissemination by student representatives/peers). Costs per screening ranged from 3.30€ (introductory presentation plus workshop) to 75.66€ (dissemination by student representatives/peers), and costs per registration ranged from 6.86€ (introductory presentation plus workshop) to 431.10€ (advertisement materials only). Dissemination of an Internet-based intervention for prevention and early intervention is challenging and expensive. More intense, expensive strategies with personal contact proved to be more cost-effective. The combination of an introductory presentation on eating disorders and a workshop in the high school was most effective and had the best cost-effectiveness ratio. The sole distribution of advertisement materials attracted hardly any participants to the Internet-based program.


Assuntos
Análise Custo-Benefício , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Internet , Instituições Acadêmicas , Adolescente , Intervenção Educacional Precoce , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Feminino , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde
9.
Eur Eat Disord Rev ; 23(2): 139-46, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25611336

RESUMO

OBJECTIVE: The ProYouth programme focuses on the promotion of mental health and the prevention of eating disorders (EDs) among young people. The aim of our study was to explore whether the programme can address individuals who are at risk for developing 2EDs. METHOD: This study is designed as an online cross-sectional survey (n = 664, 12.2% men, 87.8% women, mean age: 24.9 years, SD = 5.4 years, range: 18-40 years). Measures included demographic data, self-reported weight and height, the Patient Health Questionnaire for Depression and Anxiety, Short Evaluation of Eating Disorders, Weight Concerns Scale and previous/current treatment for EDs. RESULTS: In terms of severity of EDs, 22.9% (n = 152) of the screened participants were symptom free, 48.8% (n = 324) had considerable concerns about their weight, 11.1% (n = 74) were slightly impaired, 15.1% (n = 100) had severe impairment and 2.1% (n = 14) of participants are currently under treatment for EDs. In total, 56.3% of users (n = 374) registered in the programme. According to our results, those who had considerable concerns about their weight and individuals who were severely impaired registered with a greater odds to the programme than those who were symptom free [odds ratio (OR) = 1.64, p = .021 and OR = 1.90, p = .023, respectively]. Furthermore, those who previously received treatment for their ED registered to the programme with greater odds than those who did not (OR = 2.40, p = .017). CONCLUSION: ProYouth successfully addressed those who have elevated concerns about their weight and who also registered with greater odds to the programme than those who were symptom free regarding EDs. The screening results show that there is a greater need for specialized care targeting EDs in Hungary than what is currently available.


Assuntos
Peso Corporal , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Promoção da Saúde/métodos , Programas de Rastreamento/métodos , Adolescente , Adulto , Transtornos de Ansiedade/psicologia , Estudos Transversais , Depressão/psicologia , Transtorno Depressivo/psicologia , Impulso (Psicologia) , Feminino , Humanos , Hungria , Internet , Masculino , Saúde Mental , Fatores de Risco , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
10.
Psychother Res ; 24(4): 496-503, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24188127

RESUMO

OBJECTIVE: The implementation of new interventions into routine care requires the demonstration of both their effectiveness and cost-effectiveness. METHOD: We explored the cost-effectiveness of an Internet-based aftercare program in addition to treatment as usual (CHAT) which was compared to treatment as usual (TAU) following inpatient treatment. Incremental cost-effectiveness ratios were calculated based on cost of the intervention, cost of outpatient treatment, and remission rates within 1 year after discharge from hospital. RESULTS: Assuming a willingness-to-pay of an additional 14.87 € per treatment for every additional percent of remission, CHAT was cost-effective against TAU at a 95% level of certainty. Cost per remission equaled 2664.84 € in TAU and 1752.75 € in CHAT (34.2% savings). CONCLUSIONS: This is the first evidence that Internet-based aftercare may enhance long-term treatment outcome in a cost-effective way.


Assuntos
Assistência ao Convalescente/normas , Análise Custo-Benefício , Internet/estatística & dados numéricos , Transtornos Mentais/reabilitação , Adulto , Assistência ao Convalescente/economia , Assistência ao Convalescente/métodos , Pesquisa Comparativa da Efetividade , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Medicina Psicossomática/métodos
11.
Psychiatr Prax ; 40(6): 332-8, 2013 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-24008682

RESUMO

OBJECTIVE: The study reports on the implementation and dissemination of an internet-based program for prevention and early intervention in eating disorders (ProYouth). METHODS: The program consists of several modules that can be flexibly combined by users depending on their individual needs for support. The uptake and utilization of the online intervention, user characteristics, as well as the estimated amount of required resources to maintain the program are analyzed. RESULTS: Within 16 months, 1211 individuals registered for participation in the program. Active utilization of the different modules varies highly between participants and is related to their degree of impairment. User satisfaction is high. With the current sample, managing the platform requires approximately 11.5 hours of staff time per week. In a sample of 1000 participants, fixed costs (e. g. server and software maintenance) and cost for provision of online support amount to approx. 15 Euro per participant per year. CONCLUSIONS: ProYouth allows for the provision of individualized support based on participants' needs. Maintenance of the program is efficient since modules are partly automated. More research on the implementation and dissemination of internet-based interventions is needed to facilitate transfer into routine care.


Assuntos
Intervenção Médica Precoce/métodos , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Internet , Software , Adolescente , Adulto , Comportamento do Consumidor/economia , Redução de Custos , Diagnóstico Precoce , Intervenção Médica Precoce/economia , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/economia , Feminino , Alemanha , Humanos , Internet/economia , Masculino , Avaliação de Processos e Resultados em Cuidados de Saúde , Autocuidado/economia , Autocuidado/métodos , Apoio Social , Software/economia , Adulto Jovem
12.
J Ment Health ; 21(4): 355-63, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22548363

RESUMO

Advances in technology increasingly facilitate data collection in the context of psychosocial and psychotherapeutic care. Such technology-enhanced assessments (e.g. via Internet-based systems and mobile devices) open new perspectives for research into processes related to mental health and well-being. The use of this knowledge for the development and refinement of (online and face-to-face) therapeutic interventions promises to contribute to an optimization of care. The aim of this paper is to provide an overview on how information and communication technologies may be used (a) to improve our understanding of illness development and recovery through longitudinal technology-enhanced assessment of symptoms and behaviors (e.g. outcome monitoring and ecological momentary assessment) and (b) to optimize care for mental disorders by integrating such monitoring assessments in specific interventions (e.g. ecological momentary interventions and supportive monitoring) in face-to-face or e-mental health settings.


Assuntos
Transtornos Mentais/terapia , Avaliação das Necessidades , Psicoterapia/métodos , Telemedicina/métodos , Retroalimentação , Alemanha , Humanos , Avaliação de Resultados em Cuidados de Saúde/métodos , Apoio Social , Inquéritos e Questionários
13.
Int J Eat Disord ; 45(5): 677-84, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21882219

RESUMO

OBJECTIVE: Latent class analysis (LCA) has frequently been used to identify qualitatively distinct phenotypes of disordered eating. However, little consideration has been given to methodological factors that may influence the accuracy of these results. METHOD: Monte Carlo simulations were used to evaluate methodological factors that may influence the accuracy of LCA under scenarios similar to those seen in previous eating disorder research. RESULTS: Under these scenarios, the aBIC provided the best overall performance as an information criterion, requiring sample sizes of 300 in both balanced and unbalanced structures to achieve accuracy proportions of at least 80%. The BIC and cAIC required larger samples to achieve comparable performance, while the AIC performed poorly universally in comparison. Accuracy generally was lower with unbalanced classes, fewer indicators, greater or nonrandom missing data, conditional independence assumption violations, and lower base rates of indicator endorsement. DISCUSSION: These results provide critical information for interpreting previous LCA research and designing future classification studies.


Assuntos
Pesquisa Biomédica , Transtornos da Alimentação e da Ingestão de Alimentos/classificação , Método de Monte Carlo , Manual Diagnóstico e Estatístico de Transtornos Mentais , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Humanos , Fenótipo
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