Eating disorders (including but not limited to anorexia nervosa, bulimia nervosa, binge eating disorder, avoidant restrictive food intake disorder, other specified feeding and eating disorder) Mental and Behavioural Disorders
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 16-25 years – all genders, all ethnicities 2. Ability to give informed consent 3. Access and ability to complete the self-reported assessments via smartphone and/or computer 4. Willingness to use either their own Android smartphone or a provided Android study smartphone as their only smartphone during the data collection period of 12 months 5. Willingness and ability to install a RADAR Passive App and RADAR Active App on the study smartphone provided, during the data collection period of 12 months
Exclusion criteria
Exclusion criteria: 1. Insufficient knowledge of English to complete study assessments 2. Severe learning disabilities 3. Any other major medical condition which might impact the patient’s ability to participate in normal daily activities (e.g., due to hospitalisations) 4. Residing outside the UK
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Eating disorder symptoms are measured using the Eating Disorder Examination Questionnaire (EDE-Q) global score at baseline, 3, 6, 12 and 24 months | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Eating disorder symptom changes and related clinical outcomes are measured using brief clinical symptom questionnaires and visual analogue scales (VAS) every 2 weeks for 1 year, and at 24-month follow-up 2. Other related psychological, social, and functional outcomes are measured using scores on validated questionnaires and VAS at baseline, 6-, 12- and 24-month follow-up 3. Speech prosody is measured using a speech task every month for 1 year 4. Real-time experiences, mood changes and stressors in daily life are measured using an Experience Sampling Methodology (ESM) protocol every 12 weeks, for 6 consecutive days, at 6 times per day, for 1 year 5. Digital biomarkers of ED symptom changes are measured using ongoing remote monitoring via purpose-built smartphone applications and wearable devices for 1 year 6. Neurocognitive functioning is measured using performance on tasks involving food-related attentional bias, decision making, impulse control, temporal discounting, and emotion regulation at baseline, 12- and 24-month follow-up | — |
Countries
England, Scotland, United Kingdom