Jacobi 2012.

Methods	Randomised controlled trial of 1 active intervention and 1 control condition
Participants	Inclusion criteria: Girls aged 11 to 17 with combination of selected risk factors (e.g. excessive participation in physical activities, strong weight and shape concerns) or early symptoms of AN (e.g. lower than 90% of her ideal body weight, amenorrhoea), or both
Interventions	Intervention group 1 Description: Family‐oriented, internet‐based intervention. The intervention consists of an online programme for parents of adolescent daughters moderated by eating disorder experts (e.g. diploma‐level psychologists). Parents are educated on the danger of AN and the need to intervene to prevent this outcome. In addition, parents are encouraged to take definitive steps to intervene with any weight loss efforts (dieting, diet pills, over‐exercise) in order to prevent the elaboration of these behaviours with an attendant escalation in medical and psychological problems. Additional features are an online discussion group, 2 phone calls to enable individualised feedback on the child's problems with eating, weight and shape, and referral to other resources (self‐help guide,Lock 2004); in‐ or outpatient treatment) if necessary Length: 6 sessions over 6 weeks Control group Description: Non‐intervention control group Length: 'non‐intervention'
Outcomes	Primary outcomes: 1. Weight normalisation (changes in BMI) 2. Weight and shape concerns, eating concerns, restraint (restrictive eating): EDE interview Secondary outcomes: 1. Risk status (as described in inclusion criteria, questionnaire) 2. Full or partial AN diagnoses: EDE interview 3. Drive for thinness, body dissatisfaction: EDI‐2 questionnaire 4. Self‐esteem: RSE questionnaire 5. Depression: BDI‐II questionnaire 6. Perfectionism: MPS‐F questionnaire 7. Social adjustment: SAS, German version: Fragebogen zur sozialen Integration, FSI, questionnaire
Notes	www.isrctn.com/ISRCTN18614564