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Clustering of eating disorder symptoms in a general population female twin sample: a latent class analysis.
Psychol Med. 2007 Aug; 37(8):1097-107.PM

Abstract

BACKGROUND

Previous studies have reported that the current DSM-IV eating disorder (ED) criteria do not adequately describe ED symptomatology. The objective of the current study was to examine the clustering of ED symptoms in a general population sample using latent class analysis (LCA).

METHOD

ED symptoms from 3723 female young adult twins (mean age 22) were analyzed using LCA, and resulting classes were compared on external validators reflecting ED and other co-morbid psychiatric diagnoses, substance use disorders (SUDs), and suicidality.

RESULTS

The optimal solution consisted of five latent classes characterized as: (1) Unaffected; (2) Low Weight Gain; (3) Weight Concerned; (4) Dieters; and (5) ED. Members of the ED class had significantly higher prevalence of co-morbid psychiatric disorders, SUDs, and suicidality than the Unaffected and Low Weight Gain classes, and elevated rates of suicidality and major depression compared to the Weight Concerned and Dieter classes, which differed from each other primarily in terms of current body mass index (BMI). Dieter class members were more likely to be overweight and obese and less likely to be underweight than Weight Concerned class members. The majority of women with an ED diagnosis were assigned to the ED class, and few differences were found between ED class members with and without an ED diagnosis.

CONCLUSIONS

The results add to the evidence that many women with significant ED psychopathology are not being identified by the DSM-IV ED categories.

Authors+Show Affiliations

Department of Psychiatry and Midwest Alcoholism Research Center, Washington University School of Medicine, St Louis, MO 63110, USA. duncana@psychiatry.wustl.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Twin Study

Language

eng

PubMed ID

17472759

Citation

Duncan, Alexis E., et al. "Clustering of Eating Disorder Symptoms in a General Population Female Twin Sample: a Latent Class Analysis." Psychological Medicine, vol. 37, no. 8, 2007, pp. 1097-107.
Duncan AE, Bucholz KK, Neuman RJ, et al. Clustering of eating disorder symptoms in a general population female twin sample: a latent class analysis. Psychol Med. 2007;37(8):1097-107.
Duncan, A. E., Bucholz, K. K., Neuman, R. J., Agrawal, A., Madden, P. A., & Heath, A. C. (2007). Clustering of eating disorder symptoms in a general population female twin sample: a latent class analysis. Psychological Medicine, 37(8), 1097-107.
Duncan AE, et al. Clustering of Eating Disorder Symptoms in a General Population Female Twin Sample: a Latent Class Analysis. Psychol Med. 2007;37(8):1097-107. PubMed PMID: 17472759.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Clustering of eating disorder symptoms in a general population female twin sample: a latent class analysis. AU - Duncan,Alexis E, AU - Bucholz,Kathleen Keenan, AU - Neuman,Rosalind J, AU - Agrawal,Arpana, AU - Madden,Pamela A F, AU - Heath,Andrew C, Y1 - 2007/05/02/ PY - 2007/5/3/pubmed PY - 2007/10/17/medline PY - 2007/5/3/entrez SP - 1097 EP - 107 JF - Psychological medicine JO - Psychol Med VL - 37 IS - 8 N2 - BACKGROUND: Previous studies have reported that the current DSM-IV eating disorder (ED) criteria do not adequately describe ED symptomatology. The objective of the current study was to examine the clustering of ED symptoms in a general population sample using latent class analysis (LCA). METHOD: ED symptoms from 3723 female young adult twins (mean age 22) were analyzed using LCA, and resulting classes were compared on external validators reflecting ED and other co-morbid psychiatric diagnoses, substance use disorders (SUDs), and suicidality. RESULTS: The optimal solution consisted of five latent classes characterized as: (1) Unaffected; (2) Low Weight Gain; (3) Weight Concerned; (4) Dieters; and (5) ED. Members of the ED class had significantly higher prevalence of co-morbid psychiatric disorders, SUDs, and suicidality than the Unaffected and Low Weight Gain classes, and elevated rates of suicidality and major depression compared to the Weight Concerned and Dieter classes, which differed from each other primarily in terms of current body mass index (BMI). Dieter class members were more likely to be overweight and obese and less likely to be underweight than Weight Concerned class members. The majority of women with an ED diagnosis were assigned to the ED class, and few differences were found between ED class members with and without an ED diagnosis. CONCLUSIONS: The results add to the evidence that many women with significant ED psychopathology are not being identified by the DSM-IV ED categories. SN - 0033-2917 UR - https://www.unboundmedicine.com/medline/citation/17472759/Clustering_of_eating_disorder_symptoms_in_a_general_population_female_twin_sample:_a_latent_class_analysis_ L2 - https://www.cambridge.org/core/product/identifier/S0033291707000505/type/journal_article DB - PRIME DP - Unbound Medicine ER -