Study of the Characteristics of Orthorexia Nervosa in the Population Living with Type 1 Diabetes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 33
- 试验地点
- 2
- 主要终点
- Forced food categorization task according to the categories "healthy / unhealthy"
研究概览
简要总结
In the general population, the excessive and constant desire to control one's diet and body has become increasingly problematic. Indeed, the demand for control over one's diet and body is now an unspoken social prescription that can lead in some cases to eating disorders. In patients with type 1 diabetes (T1D), these concerns are even more central, as they are accentuated by the very nature of the treatment of the disease (dietary modification, insulin compensation according to food intake, etc.). Studies on adolescents with T1D show that the prevalence of eating disorders would be present in at least 1 in 5 patients. Among these disorders, orthorexia is of particular interest. Indeed, orthorexia was defined in 1997 by Steven Bratman as a rigid eating behavior based on the avoidance of foods considered qualitatively unhealthy. More precisely, orthorexia is characterized by a constant preoccupation with one's diet and persistent nutritional (or health) beliefs that take precedence over food pleasure. It has been estimated that the prevalence of orthorexia in patients living with T1D may be as high as 80%. We are currently conducting a study on the mechanisms of orthorexia in the general population of Quebec (the results of phase 1 of this study are being analyzed). We now wish to conduct the same study in a population with T1D, which has a higher prevalence of people with orthorexia nervosa.
The main objective of this study is to investigate the characteristics of orthorexia nervosa (obsessions and fixations on healthy eating) in the Quebec population with T1D from the BETTER Registry.
详细描述
The BETTER registry is supervised by Dr. Rabasa-Lhoret and Dr. Brazeau and co-funded by CIHR and JDRF: more than 2000 patients with T1D are currently in the registry, of which 98% of the participants have agreed to be contacted for future research studies. This will be done by comparing food categorization strategies between control subjects from the previous study (results under analysis) and subjects with orthorexia nervosa traits in the T1D patient population, and also by testing the hypothesis of dysfunctions specific to the orthorexia population of executive functions (including attention, cognitive flexibility, inhibition and working memory) in the general domain and then more specifically in the food domain.
Considering the existing literature on orthorexia described above, and in particular the definition of orthorexia nervosa (orthorexia nervosa is defined as obsessions and fixations on healthy eating leading to negative emotional and behavioral consequences for the individual, e.g., excessive anxiety, social isolation), as well as the strong correlations observed in the literature between distress, anxiety, and diabetes, the hypotheses are the following:
- Hypothesis 1: The more orthorexic traits subjects exhibit, the more quickly they categorize foods into healthy/unhealthy.
- Hypothesis 2: The likelihood that a food, regardless of its properties, will be categorized as unhealthy is greater the more orthorexic traits the subjects exhibit.
- Hypothesis 3: The more orthorexic traits subjects exhibit, the more stable they respond (i.e., they respond in the same way to each repetition of the same stimulus) when it comes to categorizing a food as good or bad for health.
- Hypothesis 4: The more severe the orthorexia behaviors, the more distressing the patients will express about their T1D.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Person living with type 1 diabetes
- •French speaking
- •Between 18 and 35 years old
排除标准
- 未提供
结局指标
主要结局
Forced food categorization task according to the categories "healthy / unhealthy"
时间窗: Baseline
Instruction to the participant: "Classify the food that appears on your screen as quickly as possible, either as "healthy" (key E) or "unhealthy" (key I). Each response and the associated reaction time will be recorded. Stimuli must be classified by the participant as quickly as possible, if the stimulus is not classified before 3 sec the participant moves to the next observation and the stimulus is recorded as NC (not classified).
次要结局
- Trail Making Test (TMT)(Baseline)
- Stroop Task(Baseline)
- Height(Baseline)
- Weight(Baseline)
- Diabetes Information : How insulin is administered(Baseline)
- Diabetes Information : Total dose of insulin(Baseline)
- Eating Habit Questionnaire (EHQ)(Baseline)
- Ortho-15 Questionnaire(Baseline)
- Diabetes Information : Age of appearance and duration(Baseline)
- Diabetes Information : Severe hypoglycemic episodes(Baseline)
- Eating Disorder Examination Questionnaire (EDE-Q)(Baseline)
- Type 1 Diabetes Distress Scale (T1-DDS)(Baseline)
- Age(Baseline)
- Gender(Baseline)
- Diabetes Information : Duration of diabetes self-monitoring(Baseline)
- Diabetes Information : Diabetes complications(Baseline)
研究者
Sylvain Iceta
Principal Investigator - Assitant Professor
Laval University