Page 27 - The efficacy and effectiveness of psychological treatments for eating disorders - Elske van den Berg
P. 27

  Chapter 2 27
 Highlights
• No significant differences between psychological treatment and control condition were found on weight gain, on eating disorder pathology and on quality of life.
• Studies including only patients over 18 years of age were more effective on weight gain than studies including adolescents as well.
• High-quality studies and studies with reported therapist training,
had larger effects on weight gain and quality of life compared with lower quality studies and studies without reported training.
Method
Appendix A provides an overview of the extent to which this study was conducted in accordance to the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines (Moher et al., 2015).
Selection procedure
For this meta-analysis, a systematic extensive electronic database literature search (from 1980 to 2017) for RCTs was conducted in the following databases: PubMed, PsycINFO, Embase, and Cochrane Library combining index and free terms of anorexia nervosa and psychological treatments (see Appendix B for an example of PubMed search string). Articles were also found via hand searches of reference lists by the first authors. The World Health Organization’s International Clinical Trials Registry was searched for unpublished studies.
Study selection
RCTs written in English or Dutch, published in peer-reviewed journals, were included in this meta-analysis if (a) a psychological treatment was compared with a control condition (b) the psychological treatment consisted of at least some face to face verbal contacts, and (c) the study reported on patient groups diagnosed with anorexia nervosa and included patients 12 years of age or above. Studies or arms were excluded if insufficient statistics were available to calculate effect sizes.
Psychological treatments could include psychodynamic or psychoanalytic ther- apy, cognitive (behavioural) therapy, interpersonal therapy, family therapy, social skills training, motivational interviewing and combinations of the above. Control conditions to be included could be treatment as usual (TAU) among which are dietary






















































































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