The purpose of this study is to determine whether mobile-based self-help CBT-E treatment for eating disorder can reduce eating disorder symptoms compared to the waitlist group
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
120
The intervention will be delivered through a smartphone app. The app provides users with ED symptom self-monitoring, psycho-education and relapse prevention in an evidence-based CBT-E.
The intervention will be delivered through a smartphone app. The app provides users with ED symptom self-monitoring, psycho-education and relapse prevention in an evidence-based CBT-E.
GangnamSeverance Hospital
Seoul, South Korea
RECRUITINGChange in Eating Disorder Cognitions assessed using EDE-Q global scores
The global score of Eating Disorder Examination Questionnaire (EDE-Q) has the 28-item scale of key attitudinal and behavioral ED symptoms. Higher scores indicate higher eating disorder symptomology.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in concerns with body weight assessed using EDE-Q weight concern scores
EDE-Q subscales Higher scores indicate higher eating disorder symptomology.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in concerns with body shape assessed using EDE-Q shape concern scores
EDE-Q subscales Higher scores indicate higher eating disorder symptomology.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in restrained eating assessed using EDE-Q dietary restraint scores
EDE-Q subscales Higher scores indicate higher eating disorder symptomology.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in concerns with eating assessed using EDE-Q eating concern scores
EDE-Q subscales Higher scores indicate higher eating disorder symptomology.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in eating disorder symptoms assessed using the Eating Attitude Test
The Eating Attitude Test (EAT) is a 40-item, 6-point, self-report scale that measures dieting behaviors, food preoccupation, anorexia, bulimia, and concerns about being overweight. The total score (between 0 and 78) provides an overall risk score, where higher scores indicating greater risk of an eating disorder.
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Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in addictive-like eating behaviors assessed using the Yale Food Addiction scale
The Yale Food Addiction Scale is a 35-item self-report inventory to identify people most likely to have an addiction to high-fat and/or high-sugar foods. The scale uses a combination of Likert and dichotomous scoring options. The YFAS provides two scoring options, a "symptom" count version that indicates the number of dependence symptoms experienced in the past 12 months and a "diagnostic" threshold that is met when three or more "symptoms" are present during the past 12 months and clinically significant impairment or distress is endorsed(Gearhardt et al., 2012).
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in addictive-like eating behaviors assessed using the Yale Food Addiction Scale for Children
The Yale Food Addiction Scale for Children(YFAS-C) is a 25-item, 5-point self-report scale with higher scores indicating more food addiction symptoms in children. Items 1 to 18 are rated on a 5-point Likert scale and Items 19 to 25 are rated on a dichotomous (0 = no; 1 = yes) scale.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in emotion regulation problems assessed using the Difficulties in Emotion Regulation Scale
The Difficulties in Emotion Regulation Scale(DERS) is the 36 items self-report scale to asks respondents how they relate to their emotions. Scores are presented as a total score as well as a score for each of the 6 subscales. Higher scores mean greater problems with emotion regulation.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in Depression symptoms assessed using the Beck Depression Inventory
The Beck Depression Inventory (BDI) is a 21-item self-reporting questionnaire for assessing the severity of depression. The total score range from 0 to 63 and 0-9 indicates minimal depression, 10-18: indicates mild depression, 19-29: indicates moderate depression and 30-63: indicates severe depression.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in anxiety symptoms assessed using the State-Trait Anxiety Inventory
The State-Trait Anxiety Inventory (STAI) is a commonly used measure of trait and state anxiety. All items are rated on a 4-point scale. Higher scores indicate greater anxiety
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in assessed the impact an eating disorder has on psychosocial functioning using The Clinical Impairment Assessment Questionnaire (CIA)
The Clinical Impairment Assessment questionnaire (CIA) is a 16-items self-report measure to assess psychosocial impairment resulting from eating disorder features. Possible scores range between 0 - 48, with higher scores indicating more impairment and lower scores indicating less impairment.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in self-esteem assessed using the Rosenberg self-esteem scale (RSES)
The Rosenberg Self-Esteem Scale(RSES) is a A 10-item scale that measures global self-worth by measuring both positive and negative feelings about the self. The total score is from 0 to 30, with higher scores representing higher self-esteem.
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in the body attitudes associated with desiring a thinner assessed using the Eating Disorder Inventory-2, Drive for Thinness
Drive for thinness (DT), a subscale of the Eating Disorder Inventory (EDI), is a self-report measure of disordered eating attitudes about body image, weight, and shape. The total score is from 0 to 21. Higher scores mean an excessive concern with dieting, preoccupation with weight, and fear of weight gain
Time frame: Baseline, 8 weeks,16 weeks, 28 weeks
Change in eating disorder symptoms assessed using the Korean version of the Eating disorder Diagnostic Scale
The Eating Disorder Diagnostic Scale (EDDS) is a 22-item self-report questionnaire designed to measure eating disorders symptomatology
Time frame: Baseline, 8 weeks,16 weeks
Change in the heart rate variability
The heart rate variabilities the physiological recordings of the variation in the time interval between consecutive heartbeats in milliseconds. This measures only those who want it
Time frame: Baseline, 8 weeks,16 weeks
Change in brain activities recorded with functional near-infrared spectroscopy (fNIRS)
Functional near-infrared spectroscopy (fNIRS) is a tool to measure functional brain activities using the changes of optical absorption in the brain through the intact skull. This tool measures only those who want it, and the target number of participants is 40.
Time frame: Baseline, 8 weeks