Cited by 142Obsessive-Compulsive Spectrum DisordersAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesPersonality Disorders and Psychopathology

Treating trichotillomania: A meta-analysis of treatment effects and moderators for behavior therapy and serotonin reuptake inhibitors

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McGuire, Joseph F., Ung, Danielle, Selles, Robert R., Rahman, Omar, Lewin, Adam B., Murphy, Tanya K., Storch, Eric A.·2014·Journal of Psychiatric Research

Abstract

Few randomized controlled trials (RCTs) exist examining the efficacy of behavior therapy (BT) or serotonin reuptake inhibitors (SRIs) for the treatment of trichotillomania (TTM), with no examination of treatment moderators. The present meta-analysis synthesized the treatment effect sizes (ES) of BT and SRI relative to comparison conditions, and examined moderators of treatment. A comprehensive literature search identified 11 RCTs that met inclusion criteria. Clinical characteristics (e.g., age, comorbidity, therapeutic contact hours), outcome measures, treatment subtypes (e.g., SRI subtype, BT subtype), and ES data were extracted. The standardized mean difference of change in hair pulling severity was the outcome measure. A random effects meta-analysis found a large pooled ES for BT (ES = 1.41, p < 0.001). BT trials with greater therapeutic contact hours exhibited larger ES (p = 0.009). Additionally, BT trials that used mood enhanced therapeutic techniques exhibited greater ES relative to trials including only traditional BT components (p = 0.004). For SRI trials, a random effects meta-analysis identified a moderate pooled ES (ES = 0.41, p = 0.02). Although clomipramine exhibited larger ES relative to selective serotonin reuptake inhibitors, the difference was not statistically significant. Publication bias was not identified for either treatment. BT yields large treatment effects for TTM, with further examination needed to disentangle confounded treatment moderators. SRI trials exhibited a moderate pooled ES, with no treatment moderators identified. Sensitivity analyses highlighted the need for further RCTs of SRIs, especially among youth with TTM.

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Authors
McGuire, J. F., Ung, D., Selles, R. R., Rahman, O., Lewin, A. B., Murphy, T. K., & Storch, E. A.
Affiliations
  • University of South Florida (US)
  • Johns Hopkins University (US)
Corresponding author
McGuire, Joseph F.
Venue
Journal of Psychiatric Research
Publisher
Elsevier BV
Published
2014-11
Volume
58
Pages
76-83
ISSN
0022-3956 (ISSN-L)
OpenAlex
W2160932918
Cited by
142
References
63
Citations by year
2026: 3 · 2025: 6 · 2024: 11 · 2023: 18 · 2022: 7 · 2021: 8 · 2020: 7 · 2019: 14 · 2018: 14 · 2017: 18 · 2016: 17 · 2015: 17 · 2014: 1 · 2013: 1
FWCI
2.67
Type
journal article
Language
en
Open access
Locations
  • Journal of Psychiatric Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (MH093381, R01MH093381)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Social Sciences › Psychology › Clinical Psychology › Personality Disorders and Psychopathology
Keywords
trichotillomania, hair pulling, behavior therapy, serotonin reuptake inhibitors, clomipramine, selective serotonin reuptake inhibitors, treatment moderators, treatment effect size, youth
MeSH terms
Adolescent, Adult, Analysis of Variance, Behavior Therapy, Clomipramine, Female, Humans, Male, Trichotillomania, Reproducibility of Results, Randomized Controlled Trials as Topic, Treatment Outcome, Selective Serotonin Reuptake Inhibitors, Young Adult

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