Skin picking and trichotillomania in adults with obsessive-compulsive disorder.
The objective of this study was to compare patients with obsessive-compulsive disorder (OCD) associated with pathologic skin picking (PSP) and/or trichotillomania, and patients with OCD without such comorbidities, for demographic and clinical characteristics. We assessed 901 individuals with a primary diagnosis of OCD, using the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) Axis I disorders. Diagnoses of PSP and trichotillomania were made in 16.3% and 4.9% of the sample, respectively. After the logistic regression analysis, the following factors retained an association with OCD-PSP/trichotillomania: younger (odds ratio [OR] = 0.979; P = .047), younger at the onset of compulsive symptoms (OR = 0.941; P = .007), woman (OR = 2.538; P < .001), with a higher level of education (OR = 1.055; P = .025), and with comorbid body dysmorphic disorder (OR = 2.363; P = .004). These findings support the idea that OCD accompanied by PSP/trichotillomania characterizes a specific subgroup.
Department of Psychiatry, Federal University of Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil. medicolucaslovato@gmail.com
Lucas
L
Lovato
Ygor Arzeno
YA
Ferrão
Dan J
DJ
Stein
Roseli G
RG
Shavitt
Leonardo F
LF
Fontenelle
Analise
A
Vivan
Eurípedes Constantino
EC
Miguel
Aristides Volpato
AV
Cordioli
D000328:Adult; D017677:Age Distribution; D057215:Body Dysmorphic Disorders / Q000453:epidemiology; D001938:Brazil / Q000453:epidemiology; D016022:Case-Control Studies; D015897:Comorbidity; D003430:Cross-Sectional Studies; D007174:Disruptive, Impulse Control, and Conduct Disorders / Q000453:epidemiology* / Q000523:psychology; D004493:Education; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000453:epidemiology* / Q000523:psychology; D015995:Prevalence; D017678:Sex Distribution; D014256:Trichotillomania / Q000453:epidemiology* / Q000523:psychology