Author(s):
Conceição, Eva Martins ; Mitchell, James E. ; Machado, Paulo P. P. ; Vaz, Ana Rita Rendeiro Ribeiro ; Silva, Ana Isabel Pinto Bastos Leite ; Ramalho, Sofia Marlene Marques ; Brandão, Isabel ; Simões, Joana Botelho ; Lourdes, Marta Francisca Magalhães de ; Freitas, Ana Catarina
Date: 2017
Persistent ID: http://hdl.handle.net/1822/52312
Origin: RepositóriUM - Universidade do Minho
Project/scholarship:
info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F94490%2F2013/PT;
info:eu-repo/grantAgreement/FCT/5876/147227/PT;
info:eu-repo/grantAgreement/FCT/5876-PPCDTI/132140/PT
;
Subject(s): Grazing problematic eating behaviors; Psychometric properties; Self-report measure; Bariatric surgery; Grazing; Problematic eating behaviors; Science & Technology
Description
Background/objective: Grazing has been associated with poor weight loss or weight regain in obese patients undergoing bariatric surgery, but research remains scarce and complicated by the use of different non-validated measures. The aim of this paper is to describe the validation of the Rep(eat)-Q a self-report measure developed to assess grazing, and investigates its relationship with BMI and psychopathology.Subjects/Methods: 1223 university students and community participants (non-clinical; Study A) and 154 pre-bariatric and 84 post-bariatric patients (Study B) completed a set of self-report measures, including the Rep(eat)-Q (worded in Portuguese), to assess disordered eating, depression, anxiety, stress and impulsivity. Exploratory and confirmatory factor analyses tested the factor structure; internal consistency construct, convergent and divergent validity were also tested.Results: The Rep(eat)-Q scales showed good internal consistency (alpha >= 0.849) and temporal stability (r(sp) = 0.824, p < 0.000). Factor analyses generated two subscales: compulsive grazing and repetitive eating. Significant correlations (p < 0.05) were found between the Rep(eat)-Q and BMI in the non-clinical population and weight loss and weight regain in the bariatric sample. Generally, the correlations with psychological distress were weak (r(sp) < 0.4). Strong and significant (r(sp)>= 0.4; p's < 0.05) correlations were found between compulsive grazing and eating disorder psychopathology. Repetitive eating subscale was inversely correlated with cognitive restraint (r(sp) -0.321, p < 0.05) and directly correlated with uncontrolled eating and emotional eating (r(sp) = 0.754; r(sp) = 0.691; p < 0.05).Discussion/conclusion: The Rep(eat)-Q is a valid measure to assess grazing in non-clinical and in bariatric surgery populations. Grazing can be conceptualized on the spectrum of disordered eating behavior, and appears associated with loss of control over eating. Considering the link between grazing and weight outcomes, the Rep(eat)-Q represe
This research was partially supported by Fundacao para a Ciencia e a Tecnologia/Foundation for Science and Technology through a European Union COMPETE program grant to Eva Conceicao (IF/01219/2014), post-doctoral scholarship to Ana Vaz (SFRH/BPD/94490/2013) doctoral scholarship to Ana Pinto-Bastos (SFRH/BD/104159/2014) and Sofia Ramalho (SFRH/BD/104182/2014), co-financed by FEDER under the PT2020 Partnership Agreement (UID/PSI/01662/2013) and the project PTDC/MHC-PCL/4974/2012. The funding body had no role in the design, collection, analysis, and interpretation of data; the writing of the manuscript; or the decision to submit the manuscript for publication.
info:eu-repo/semantics/publishedVersion
