| Summary: | Orientador: Juliana Alvares Duarte Bonini Campos === Resumo: Objetivo: Avaliar a contribuição da imagem corporal, do comportamento alimentar e da percepção de competência para a saúde na qualidade de vida de estudantes universitários brasileiros e portugueses. Métodos: Os participantes preencheram os instrumentos Body Shape Questionnaire (BSQ; versão reduzida, somente mulheres), Male Body Dissatisfaction Scale (MBDS; versão reduzida, somente homens), Three-Factor Eating Questionnaire (TFEQ-18), Perceived Health Competence Scale (PHCS), World Health Organization Quality of Life Questionnaire-Short Form (WHOQoL-bref) e um questionário para caracterização da amostra. As propriedades psicométricas de cada instrumento foram estimadas para cada sexo por meio de análise fatorial confirmatória. Um modelo hipoteticamente causal para cada sexo foi testado utilizando a modelagem de equações estruturais. Os aspectos da imagem corporal (BSQ="Preocupação com a Forma Corporal"; ou MBDS="Musculatura" e "Aparência Geral do Corpo"), do comportamento alimentar (TFEQ-18="Restrição Cognitiva", "Alimentação Emocional", e "Descontrole Alimentar") e da percepção de competência para a saúde (PHCS="Expectativas de Alcançar os Resultados", e "Competências nos Comportamentos") foram inseridos diretamente na qualidade de vida (WHOQoL-bref). As variáveis "idade", "consumo de medicamentos para alterar o corpo", "consumo de suplementos para alterar o corpo" e "índice de massa corporal (IMC)" foram inseridas no BSQ e nos fatores da MBDS. As características demográfica... (Resumo completo, clicar acesso eletrônico abaixo) === Abstract: Aim: To evaluate the contribution of body image, eating behavior and perceived health competence in quality of life of Brazilian and Portuguese university students. Methods: Participants completed the instruments Body Shape Questionnaire (BSQ; reduced version, only women), Male Body Dissatisfaction Scale (MBDS; reduced version, only men), Three-Factor Eating Questionnaire (TFEQ-18), Perceived Health Competence Scale (PHCS), World Health Organization Quality of Life Questionnaire-Short Form (WHOQoL-bref) and a questionnaire for characterization of sample. The psychometric properties of each instrument were estimated for each sex using confirmatory factorial analysis. A causal hypothetically model for each sex was tested using structural equation modeling. The aspects of body image (BSQ = "Body Shape Concern"; or MBDS = "Musculature", and "General Body Appearance"), of eating behavior (TFEQ-18 = "Cognitive Restrain"; "Emotional Eating", "Uncontrolled Eating") and Perceived Health Competence (PHCS = "Expectations of achieving Outcomes", and "Competencies in Behaviors") were inserted directly into the quality of life (WHOQoL-bref). The variables "age", "use medication to body change", "use supplements to body change" and "body mass index (BMI)" were inserted in the BSQ and MBDS' factors. Demographic and academic characteristics were inserted directly in the quality of life. The models were evaluated by fit indices of measurement model and by the significance of the trajectories of the causal model adopting a level of significance of 5%. Results: A total of 2,198 university students (1,396 women) participated of the study. The psychometric properties of the instruments were adequate except for the PHCS that was necessary to refine. In both, female and male models, the higher the competence in health... (Complete abstract click electronic access below) === Doutor
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