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Disordered eating in a community sample of Swedish adolescent girls

Viborg, Njördur LU (2021)
Abstract
Previous research has described that disordered eating (DE) is common in adolescents, especially in girls. DE is defined as maladaptive behaviours (e.g., vomiting) and negative attitudes toward eating and one’s body shape, appearance, and weight. The present thesis had several aims. First, to validate a Swedish version of a Danish 8-item screening inventory, Risk Behaviour for Eating Disorders/RiBED-8, for the detection of DE/risk behaviours for eating disorders (EDs) in a community sample of over 900 Swedish high school students. Second, to describe the occurrence of DE in this sample, especially in girls. Third, to prospectively study DE and its associations with risk factors for EDs and other psychological variables. Fourth, to advance... (More)
Previous research has described that disordered eating (DE) is common in adolescents, especially in girls. DE is defined as maladaptive behaviours (e.g., vomiting) and negative attitudes toward eating and one’s body shape, appearance, and weight. The present thesis had several aims. First, to validate a Swedish version of a Danish 8-item screening inventory, Risk Behaviour for Eating Disorders/RiBED-8, for the detection of DE/risk behaviours for eating disorders (EDs) in a community sample of over 900 Swedish high school students. Second, to describe the occurrence of DE in this sample, especially in girls. Third, to prospectively study DE and its associations with risk factors for EDs and other psychological variables. Fourth, to advance the knowledge on DE by using cluster analysis with the further aim to find patterns of DE and its prospective associations with other psychological variables. Three studies with a longitudinal design (one-year interval) with two measurement points were conducted. Study 1 found that DE is common among adolescents, especially in girls of which about 30 % presented DE. Study 1 also found that the RiBED-8 demonstrated good psychometric properties among girls, although not among boys. Study 2 found that DE, body esteem and psychological difficulties displayed a high degree of stability in girls over a one-year period. Furthermore, general psychological difficulties and lower levels of body esteem at T1 predicted DE at follow-up one year later (T2). Additionally, reciprocal associations between DE and psychological difficulties were found. Study 3, a cluster analysis, found six DE clusters at T1 that were replicated at T2 and that severe forms of DE clusters (multiple eating problems including/without purging) were associated with higher levels of psychological difficulties and lower levels of body esteem. Moreover, girls who reported purging as part of the multi-problems cluster also reported being engaged in nonsuicidal self-injury to a larger extent. The main conclusions of the thesis was that RiBED-8 is a useful tool for screening DE in girls, that DE is a common and stable phenomenon among adolescent girls and also associated with other psychological problems, and furthermore, that the results could contribute to the knowledge of DE and possibly the prevention of further development of more severe forms of DE in adolescent girls. (Less)
Abstract (Swedish)
Tidigare forskning har visat att störda ätbeteenden (disordered eating/DE) är vanligt bland ungdomar, särskilt bland tonårsflickor. DE definieras som olika beteenden (t.ex. kräkningar, restriktivt ätande) och negativa attityder till ätande/kroppsform/utseende/vikt. Avhandlingen hade flera syften. (1) Att validera en svensk version av frågeformuläret RiBED-8 (risk behaviour for eating disorders) som mäter DE/riskbeteende för ätstörningar. Detta studerades via ett representativt urval av mer än 900 svenska högstadieelever. (2) Att beskriva förekomsten av DE i detta urval, särskilt bland flickor. (3) Att studera DE och dess samband med andra psykologiska variabler. (4) Att främja kunskapen om DE genom att använda klusteranalys som metod för... (More)
Tidigare forskning har visat att störda ätbeteenden (disordered eating/DE) är vanligt bland ungdomar, särskilt bland tonårsflickor. DE definieras som olika beteenden (t.ex. kräkningar, restriktivt ätande) och negativa attityder till ätande/kroppsform/utseende/vikt. Avhandlingen hade flera syften. (1) Att validera en svensk version av frågeformuläret RiBED-8 (risk behaviour for eating disorders) som mäter DE/riskbeteende för ätstörningar. Detta studerades via ett representativt urval av mer än 900 svenska högstadieelever. (2) Att beskriva förekomsten av DE i detta urval, särskilt bland flickor. (3) Att studera DE och dess samband med andra psykologiska variabler. (4) Att främja kunskapen om DE genom att använda klusteranalys som metod för att undersöka mönster för DE och dess potentiella samband med andra psykologiska variabler. Tre studier med longitudinell design med ett-årsintervall mellan mättillfällena
genomfördes. Studie 1 fann att DE är vanligt bland tonåringar, särskilt bland flickor, av vilka cirka 30% uppvisade DE. Studie 1 fann också att RiBED-8 uppvisade goda psykometriska egenskaper bland flickor, men inte bland pojkar. Studie 2 fann att DE vid T1 predicerade generella psykologiska svårigheter och lägre nivåer av kroppsnöjdhet vid T2 (ett år senare). Ett reciprokt samband mellan DE och psykologiska svårigheter noterades. Studie 3 fann sex DE-mönster vid T1 som replikerades vid T2 och att allvarliga former av DE-mönster (multipla ätproblem med/utan kräkning) var förknippade med högre nivåer av psykologiska svårigheter och lägre nivåer av kroppsnöjdhet. Fem av sex kluster var också stabila på den individuella nivån mellan T1 och T2. Dessutom noterades att flickor som rapporterade kräkning också rapporterade självskadebeteende i större omfattning. Avhandlingens huvudsakliga slutsatser var att RiBED-8 är ett användbart formulär för screening av DE bland flickor, att DE är ett vanligt och stabilt fenomen bland flickor samt associerat med andra psykologiska problem. Resultaten från avhandlingen kan bidra till kunskap om DE och eventuellt även till förebyggande av vidare utveckling av allvarligare former av DE bland tonårsflickor. (Less)
Please use this url to cite or link to this publication:
author
supervisor
opponent
  • Associate professor Aila-Gustafsson, Sanna, Örebro University
organization
publishing date
type
Thesis
publication status
published
subject
keywords
eating disorders, disordered eating, adolescent girls, longitudinal design, community sample
pages
55 pages
publisher
Lund University
defense location
Online, Link is available via Caroline Flyjer, caroline.flyjer@psy.lu.se
defense date
2021-10-01 09:00:00
ISBN
978-91-7895-984-6
978-91-7895-983-9
language
English
LU publication?
yes
id
46dda05f-8214-4c6f-a4c0-748f58001091
date added to LUP
2021-09-14 10:34:10
date last changed
2021-11-26 08:30:06
@phdthesis{46dda05f-8214-4c6f-a4c0-748f58001091,
  abstract     = {{Previous research has described that disordered eating (DE) is common in adolescents, especially in girls. DE is defined as maladaptive behaviours (e.g., vomiting) and negative attitudes toward eating and one’s body shape, appearance, and weight. The present thesis had several aims. First, to validate a Swedish version of a Danish 8-item screening inventory, Risk Behaviour for Eating Disorders/RiBED-8, for the detection of DE/risk behaviours for eating disorders (EDs) in a community sample of over 900 Swedish high school students. Second, to describe the occurrence of DE in this sample, especially in girls. Third, to prospectively study DE and its associations with risk factors for EDs and other psychological variables. Fourth, to advance the knowledge on DE by using cluster analysis with the further aim to find patterns of DE and its prospective associations with other psychological variables. Three studies with a longitudinal design (one-year interval) with two measurement points were conducted. Study 1 found that DE is common among adolescents, especially in girls of which about 30 % presented DE. Study 1 also found that the RiBED-8 demonstrated good psychometric properties among girls, although not among boys. Study 2 found that DE, body esteem and psychological difficulties displayed a high degree of stability in girls over a one-year period. Furthermore, general psychological difficulties and lower levels of body esteem at T1 predicted DE at follow-up one year later (T2). Additionally, reciprocal associations between DE and psychological difficulties were found. Study 3, a cluster analysis, found six DE clusters at T1 that were replicated at T2 and that severe forms of DE clusters (multiple eating problems including/without purging) were associated with higher levels of psychological difficulties and lower levels of body esteem. Moreover, girls who reported purging as part of the multi-problems cluster also reported being engaged in nonsuicidal self-injury to a larger extent. The main conclusions of the thesis was that RiBED-8 is a useful tool for screening DE in girls, that DE is a common and stable phenomenon among adolescent girls and also associated with other psychological problems, and furthermore, that the results could contribute to the knowledge of DE and possibly the prevention of further development of more severe forms of DE in adolescent girls.}},
  author       = {{Viborg, Njördur}},
  isbn         = {{978-91-7895-984-6}},
  keywords     = {{eating disorders; disordered eating; adolescent girls; longitudinal design; community sample}},
  language     = {{eng}},
  month        = {{09}},
  publisher    = {{Lund University}},
  school       = {{Lund University}},
  title        = {{Disordered eating in a community sample of Swedish adolescent girls}},
  url          = {{https://lup.lub.lu.se/search/files/102476857/Avhandling_kort.pdf}},
  year         = {{2021}},
}