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Pretreatment motivation and therapy outcomes in eating disorders: A systematic review and meta-analysis.

Author(s): Sansfaçon J, Booij L, Gauvin L, Fletcher É, Islam F, Israël M, Steiger H

OBJECTIVE: Identifying modifiable predictors of outcomes following treatment for eating disorders may help to tailor interventions to patients' individual needs, improve treatment efficacy, and develop new interventions. The goal of this meta-analysis w...

Article GUID: 32954512
Methylation of the OXTR gene in women with anorexia nervosa: Relationship to social behavior.

Author(s): Thaler L, Brassard S, Booij L, Kahan E, McGregor K, Labbe A, Israel M, Steiger H

Eur Eat Disord Rev. 2019 Dec 10;: Authors: Thaler L, Brassard S, Booij L, Kahan E, McGregor K, Labbe A, Israel M, Steiger H

Article GUID: 31823473
A longitudinal, epigenome-wide study of DNA methylation in anorexia nervosa: results in actively ill, partially weight-restored, long-term remitted and non-eating-disordered women

Author(s): Steiger H, Booij L, Kahan `, McGregor K, Thaler L, Fletcher E, Labbe A, Joober R, Israël M, Szyf M, Agellon LB, Gauvin L, St-Hilaire A, Rossi E

J Psychiatry Neurosci. 2019 05 01;44(3):205-213 Authors: Steiger H, Booij L, Kahan `, McGregor K, Thaler L, Fletcher E, Labbe A, Joober R, Israël M, Szyf M, Agellon LB, Gauvin L, St-Hilaire A, Rossi E

Article GUID: 30693739
Title:Pretreatment motivation and therapy outcomes in eating disorders: A systematic review and meta-analysis.
Authors:Sansfaçon J,  Booij L,  Gauvin L,  Fletcher É,  Islam F,  Israël M,  Steiger H
Link:https://www.ncbi.nlm.nih.gov/pubmed/32954512
DOI:10.1002/eat.23376
Category:Int J Eat Disord
PMID:32954512
Dept Affiliation: PSYCHOLOGY
1 Eating Disorders Continuum, Douglas Mental Health University Institute, Montreal, Quebec, Canada.
2 Department of Psychology, Concordia University, Montreal, Quebec, Canada.
3 Centre de Recherche de l'Hôpital Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada.
4 Department of Psychiatry, McGill University, Montreal, Quebec, Canada.
5 Centre de Recherche du Centre Hospitalier, Université de Montréal, Montreal, Quebec, Canada.
6 Department of Social & Preventive Medicine, École de santé publique, Université de Montréal, Montreal, Quebec, Canada.
7 Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium.
8 Research Centre, Douglas Mental Health University Institute, Montreal, Quebec, Canada.

Description:

Pretreatment motivation and therapy outcomes in eating disorders: A systematic review and meta-analysis.

Int J Eat Disord. 2020 Sep 21; :

Authors: Sansfaçon J, Booij L, Gauvin L, Fletcher É, Islam F, Israël M, Steiger H

Abstract

OBJECTIVE: Identifying modifiable predictors of outcomes following treatment for eating disorders may help to tailor interventions to patients' individual needs, improve treatment efficacy, and develop new interventions. The goal of this meta-analysis was to quantify the association between pretreatment motivation and posttreatment changes in eating disorder symptomology.

METHOD: We reviewed 196 longitudinal studies reporting on change on indices of overall eating-disorder symptomatology, weight gain, binge-eating, vomiting, anxiety/depression, and treatment adherence. Meta-analyses were performed using two complementary approaches: (a) combined probability analysis using the added Z's method; (b) effect size analyses. Using random-effect models, effect sizes were pooled when there were at least three studies with the same type of statistical design and reporting statistics on the same outcome. Heterogeneity in study outcome was evaluated using Q and I2 statistics. Studies were reviewed qualitatively when the number of studies or reported data were insufficient to perform a meta-analysis.

RESULTS: Forty-two articles were included. Although samples and treatments differed substantially across studies, results across studies were remarkably consistent. Both combined-probability and effect-size analyses indicated positive effects of pretreatment motivation on improvement in general eating-disorder symptoms (Cohen's r = .17), and an absence of effects on anxiety/depression symptoms. Remaining outcome indices were subject to selective reporting and/or small sample size bias.

DISCUSSION: Our findings underscore the importance of incorporating treatment engagement approaches in the treatment of eating disorders. Optimal reporting of study findings and improving study quality would improve future efforts to obtain an in-depth understanding of the relationship between motivation and eating disorder symptoms.

PMID: 32954512 [PubMed - as supplied by publisher]