| Authors |
Ljotsson et al. [ |
16] Robinson & Serfaty [17] |
Johnston et al. [ |
15] Carrard et al. |
[ 12] |
Sanchez-Ortiz et al. [19] |
Fernandez-Aranda et al. [ |
14] Carrard et al. [ |
| 13] Ruwaard et al. [18] Kind of study/Randomisation RCT: based upon |
created random numbers; Stratification treatment was executed with regard to medical diagnosis and severity |
RCT: randomization was based upon created random numbers |
RCT: No specific description was given |
RCT: Randomization was based upon generated random numbers |
RCT: based upon created random numbers; Stratification procedure was implemented with regard to medical diagnosis and recruitment website |
CT: participants were consecutively appointed to either the treatment group or the control group |
CT: participants were either provided to participate in the treatment program or asked to take part in the control group during details session for WLT |
RCT: randomization was based on generated random numbers |
| Intervention |
Self- help based upon CBT utilizing the Swedish translation of the book “Conquering Binge Eating” |
Email treatment based upon CBT dealing with a model of the eating disorder |
20 minutes writings on the basis of the Pennebaker task |
Guided self-help treatment program consisting of 11 modules based upon CBT targeting behavioural and mental elements of BED |
guided self-help treatment program “Overcoming Binge-purge syndrome Online” consisting of eight sessions based upon CBT |
Directed self-help program presenting CBT and psychoeducational principles in 7 consecutive stepsc |
Directed self-help program and including 11 modules based upon CBT targeting behavioural and psychological elements of BED |
Guided self-help program referring to CBT main concepts for treatment of BN |
| Anonymity |
No: EDE interview was performed as primary evaluation |
Yes: no interview or in person meeting was conducted |
Yes: no interview or face-to-face conference was performed |
3 additional in person assessments during a year |
introduction in an in person conference or as telephone evaluation |
No: 2 face-to-face examinations with their coaches during therapy |
no: 3 extra in person evaluations |
Yes: only an interview with a diagnostician |
| Lengths |
12 weeks |
3 months |
3 days |
Six months |
8 to 12 weeks |
Four months |
6 months |
20 weeks |
| Frequency of contact |
One to 2 e-mail contacts weekly |
Typically two e-mails per week were expected |
No contact at all throughout therapy |
Weekly e-mail contact during the intervention phase; monthly e-mail contact during the follow-up duration |
Therapists sent out e-mails when every one to two weeks and responded to any e-mail received |
Weekly e-mail contact with their coach throughout intervention phase |
Therapists sent weekly emails and participants needed to compose a minimum of one e-mail weekly to their coaches |
Treatment includes 25 scheduled therapist feedback minutes |
| Number and medical diagnosis of individuals |
73 individuals with complete or sub-threshold Binge-purge syndrome Nervosa (BN) or Binge Consuming Condition (BED) medical diagnosis according to DSM-IV; sub-threshold BN was defined as episodes of binge consuming and offsetting behaviour at least twice-monthly for the last 3 months. BED individuals needed to have at least 2 OBEs each month for the last 6 months |
97 individuals suffering from BN (n = 36 purging; n =15 non-purging), BED (n = 26) or EDNOS (n = 20) diagnosis according to DSM-IV |
94 individuals experiencing BN; Individuals were required to score at or above the medium-range cut off for bulimic symptomatology |
74 participants suffering from BED (n = 43) or sub-threshold BED (n = 31) medical diagnosis according to DSM-IV; for sub-threshold BED individuals needed to have at least one OBE weekly for the last 3 months |
76 trainees experiencing BN (n = 39) or EDNOS (n = 37) medical diagnosis according to DSM-IV; individuals experiencing BED were omitted |
62 participants experiencing BN purging subtype; diagnosis according to DSM-IV |
42 obese individuals struggling with BED (n = 21) or sub-threshold BED (n = 21); medical diagnosis according to DSM-IV; Frequency of binges had to be at least for as soon as a month during the last 3 months |
105 individuals suffering from BN symptoms (80% taken part in purging behaviour) |
| An official diagnosis of BN was not an inclusion requirements. Individuals needed to report recurrent binge consuming, inappropriate weight-control behaviour and elevated concern with body shape and weight |
| Women N (%) |
69 (97.3%) |
93 (95.9%) |
71 (75.5%) |
74 (100%) |
75 (98.7%) |
62 (100%) |
42 (100%) |
104 (99%) |
| Age of individuals M (SD) |
Intervention Group: 35.5 (11.4 ) |
Whole sample: 24.5 (23– 25.9) |
Whole sample: 28.9 (9.8 ) |
Entire sample: 36 (11.4 ) |
Entire sample: 23.9 (5.69 ) |
Entire sample: 23.7 (3.6 ) |
Intervention Group: 44.6 (11.4 ) |
Online-CBT: 30 (10 ) |
| Control group: 33.7 (9.3 ) |
Control |
group: 41.0(8.2 |
) |
Bibliotherapy: 31 (9 ) |
Waiting list group: 32 (11)Are |
| internet-based |
treatment |
programs |
an |
efficient |
method |
for treatment of different eating conditions? |