NEO-FFI personality clusters in trichotillomania

Abstract The purpose of this study was to determine whether personality prototypes exist among hair pullers and if these groups differ in hair pulling (HP) characteristics, clinical correlates, and quality of life. 164 adult hair pullers completed the NEO-Five Factor Inventory (NEO-FFI; Costa and Mc...

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Published inPsychiatry research Vol. 239; pp. 196 - 203
Main Authors Keuthen, Nancy J, Tung, Esther S, Tung, Matthew G, Curley, Erin E, Flessner, Christopher A
Format Journal Article
LanguageEnglish
Published Ireland Elsevier Ireland Ltd 30.05.2016
Subjects
Adult
Big five
Female
Hair Pulling
Humans
Male
Middle Aged
Personality
Personality - classification
Personality - physiology
Psychiatry
Quality of life
Trichotillomania - classification
Trichotillomania - physiopathology
Young Adult
Bayesian Information Criterion
Big five
Hair Pulling
HP
Personality
AIC
TTM
Trichotillomania
BIC
Akaike Information Criterion
Quality of life
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Summary:Abstract The purpose of this study was to determine whether personality prototypes exist among hair pullers and if these groups differ in hair pulling (HP) characteristics, clinical correlates, and quality of life. 164 adult hair pullers completed the NEO-Five Factor Inventory (NEO-FFI; Costa and McCrae, 1992 ) and self-report measures of HP severity, HP style, affective state, and quality of life. A latent class cluster analysis using NEO-FFI scores was performed to separate participants into clusters. Bonferroni-corrected t -tests were used to compare clusters on HP, affective, and quality of life variables. Multiple regression was used to determine which variables significantly predicted quality of life. Two distinct personality prototypes were identified. Cluster 1 (n=96) had higher neuroticism and lower extraversion, agreeableness, and conscientiousness when compared to cluster 2 (n=68). No significant differences in demographics were reported for the two personality clusters. The clusters differed on extent of focused HP, severity of depression, anxiety, and stress, as well as quality of life. Those in cluster 1 endorsed greater depression, anxiety, and stress, and worse quality of life. Additionally, only depression and cluster membership (based on NEO scores) significantly predicted quality of life.
Bibliography:ObjectType-Article-1
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ISSN:0165-1781
1872-7123
DOI:10.1016/j.psychres.2016.03.011