An empirical study of the typology of bulimic symptoms in young Portuguese women.
OBJECTIVE
To investigate whether clusters of bulimic symptoms exist in a community sample of young Portuguese women.


METHODS
A total of 2028 females, aged 12-23 years, completed the Eating Disorder Examination Questionnaire (EDE-Q). Latent class analysis was applied to the seven bulimic symptoms, age, and body mass index.


RESULTS
The selected 4-class solution yielded a "healthy" class, reporting minimal binge eating and purging behaviors. A "binge eating" class, resembled binge eating disorder. A "purging" class had infrequent binge eating, but frequent compensatory behaviors. Finally, in a "classic bulimia nervosa" class, binge eating episodes were reported by 95% of participants, and compensatory behaviors were frequently endorsed. EDE -Q global and subscale scores differed across all latent classes.


CONCLUSIONS
In the community, three natural patterns exist: binge eating plus compensatory behaviors, binge eating only, and purging in the absence of binge eating. These results have implications for future revisions of eating disorders nosology.
Pinheiro
Andrea Poyastro
AP
Department of Psychiatry, University of North Carolina at Chapel Hill, North Carolina, USA.
Bulik
Cynthia M
CM
Sullivan
Patrick F
PF
Machado
Paulo P P
PP
D000293:Adolescent; D000328:Adult; D015992:Body Mass Index; D002032:Bulimia / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D052018:Bulimia Nervosa / Q000175:diagnosis* / Q000208:ethnology* / Q000523:psychology; D002391:Catchment Area, Health; D002648:Child; D036262:Empirical Research; D005260:Female; D006801:Humans; D011174:Portugal; D015995:Prevalence; D012720:Severity of Illness Index; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires