Sleep quality and its clinical associations in trichotillomania and skin picking disorder
Sleep quality and its clinical associations in trichotillomania and skin picking disorder
Background: Trichotillomania (TTM) is characterized by recurrent hair pulling and associated hair loss. Skin picking disorder (SPD) is characterized by recurrent skin picking and associated scarring or tissue damage. Both disorders are also accompanied by psychological distress and poor sleep. Very little, however, is known about lifestyle variables that may contribute to symptom severity in these disorders.
Methods: we recruited 87 adults as part of a cross-sectional study of 3 groups (TTM, SPD, and non-affected). Clinical subjects (n=69) were compared with controls (n=18) on sleep quality as measured by Pittsburgh Sleep Quality Index (PSQI). We used partial least squares regression to identify which variables were significantly associated with poor sleep quality among those participants with TTM or SPD.
Results: clinical subjects had significantly poorer sleep quality than controls. Sleep quality was significantly related to older age, worse perceived stress, lower distress tolerance and greater impulsivity in adults with BFRBs. Poor sleep quality was associated with worse hair pulling symptom severity but not skin picking severity. Higher levels of comorbid mental disorders was also associated with worse sleep, above and beyond the impact of these other variables.
Conclusions: poor sleep quality appears to be related to multiple variables. Further research is needed to determine causality and to tailor treatment to specific patient needs.
Skin-picking disorder, Sleep quality, Stress, Trichotillomania
Cavic, Elizabeth
0811dc24-44e4-4758-b4db-e83d39bc5a79
Chamberlain, Samuel R.
8a0e09e6-f51f-4039-9287-88debe8d8b6f
Valle, Stephanie
fdb6f4ca-a7e1-4e3d-bbf5-4dd380570aa5
Grant, Jon E.
68b74bfc-0910-4325-aa34-24d285abfc19
1 February 2021
Cavic, Elizabeth
0811dc24-44e4-4758-b4db-e83d39bc5a79
Chamberlain, Samuel R.
8a0e09e6-f51f-4039-9287-88debe8d8b6f
Valle, Stephanie
fdb6f4ca-a7e1-4e3d-bbf5-4dd380570aa5
Grant, Jon E.
68b74bfc-0910-4325-aa34-24d285abfc19
Cavic, Elizabeth, Chamberlain, Samuel R., Valle, Stephanie and Grant, Jon E.
(2021)
Sleep quality and its clinical associations in trichotillomania and skin picking disorder.
Comprehensive Psychiatry, 105, [152221].
(doi:10.1016/j.comppsych.2020.152221).
Abstract
Background: Trichotillomania (TTM) is characterized by recurrent hair pulling and associated hair loss. Skin picking disorder (SPD) is characterized by recurrent skin picking and associated scarring or tissue damage. Both disorders are also accompanied by psychological distress and poor sleep. Very little, however, is known about lifestyle variables that may contribute to symptom severity in these disorders.
Methods: we recruited 87 adults as part of a cross-sectional study of 3 groups (TTM, SPD, and non-affected). Clinical subjects (n=69) were compared with controls (n=18) on sleep quality as measured by Pittsburgh Sleep Quality Index (PSQI). We used partial least squares regression to identify which variables were significantly associated with poor sleep quality among those participants with TTM or SPD.
Results: clinical subjects had significantly poorer sleep quality than controls. Sleep quality was significantly related to older age, worse perceived stress, lower distress tolerance and greater impulsivity in adults with BFRBs. Poor sleep quality was associated with worse hair pulling symptom severity but not skin picking severity. Higher levels of comorbid mental disorders was also associated with worse sleep, above and beyond the impact of these other variables.
Conclusions: poor sleep quality appears to be related to multiple variables. Further research is needed to determine causality and to tailor treatment to specific patient needs.
Text
Sleep quality and its clinical associations
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e-pub ahead of print date: 24 December 2020
Published date: 1 February 2021
Additional Information:
Funding Information:
This study was funded by the TLC Foundation for Body-Focused Repetitive Behaviors.
Funding Information:
Dr. Grant has received research grants from the TLC Foundation for Body-Focused Repetitive Behaviors, the American Foundation for Suicide Prevention, Takeda, Neurocrine, Biohaven, and Avanir Pharmaceuticals. He receives yearly compensation for acting as editor-in-chief of the Journal of Gambling Studies and has received royalties from Oxford University Press, American Psychiatric Publishing, Inc., Norton Press, and McGraw Hill. Dr. Grant has received a research grant from the TLC Foundation for Body-Focused Repetitive Behaviors. Ms. Cavic and Ms. Valle report no financial relationships with commercial interests. Dr. Chamberlain consults for Ieso and Promentis; and receives a stipend from Elsevier for editorial work. Dr. Chamberlain's role in this study was funded by a Wellcome Trust Clinical Fellowship ( 110049/Z/15/Z ).
Publisher Copyright:
© 2020 The Authors
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords:
Skin-picking disorder, Sleep quality, Stress, Trichotillomania
Identifiers
Local EPrints ID: 447398
URI: http://eprints.soton.ac.uk/id/eprint/447398
ISSN: 0010-440X
PURE UUID: e3bb9c87-a68f-447d-a4ca-8ba7112b6f50
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Date deposited: 10 Mar 2021 17:43
Last modified: 18 Mar 2024 03:58
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Contributors
Author:
Elizabeth Cavic
Author:
Samuel R. Chamberlain
Author:
Stephanie Valle
Author:
Jon E. Grant
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