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The factor structure, reliability, and concurrent validity of the Distress Tolerance Scale were evaluated in a large outpatient sample (N = 775). Prior research demonstrates mixed findings regarding the most appropriate factor structure, finding evidence for the presence of four subfactors as well as a potential second-order (hierarchical) General Distress Tolerance factor. Competing factor structures were compared using confirmatory factor analyses. A second-order hierarchical model with correlated residuals fit the data well, though results suggested poor factor discrimination. A bifactor hierarchical model also demonstrated acceptable fit. However, all subfactors except for Regulation demonstrated small or nonsignificant loadings and/or variances. The model was respecified with all items loading onto a General Distress Tolerance factor and three items loading onto the Regulation factor, which also demonstrated acceptable fit. In support of its concurrent validity, General Distress Tolerance was more strongly associated with neuroticism and a measure of difficulties with emotion regulation than with symptoms of anxiety and depression. The present study extends the literature by demonstrating support for a hierarchical bifactor structure and the favorable psychometric properties of the Distress Tolerance Scale in a large clinical sample. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Trastornos de Ansiedad , Ansiedad , Humanos , Psicometría/métodos , Reproducibilidad de los Resultados , Ansiedad/diagnóstico , Ansiedad/psicología , Trastornos de Ansiedad/diagnóstico , Análisis FactorialRESUMEN
A growing literature suggests robust associations between dimensions of emotion regulation and emotional disorder psychopathology. However, limited research has investigated associations of emotion regulation dimensions across several emotional disorders (transdiagnostic associations), or the incremental validity of emotion regulation versus the higher-order construct of neuroticism. The current study used exploratory structural equation modeling and a large clinical sample (N = 1,138) to: (a) develop a multidimensional emotion regulation measurement model, (b) evaluate the differential associations between latent emotion regulation dimensions and five latent emotional disorder symptom dimensions (social anxiety, depression, agoraphobia/panic, obsessions/compulsions, generalized worry), and (c) determine the incremental contribution of emotion regulation in predicting symptom dimensions beyond neuroticism. The best-fitting measurement model of emotion regulation included four dimensions: Problematic Responses, Poor Recognition/Clarity, Negative Thinking, and Emotional Inhibition/Suppression. Although many zero-order associations between the four latent emotion regulation dimensions and five latent symptom dimensions were significant, few associations remained significant in a structural regression model that included neuroticism. Specifically, Negative Thinking and Problematic Responses incrementally predicted depression symptoms, while Emotional Inhibition/Suppression predicted both social anxiety and depression symptoms. Associations between neuroticism and the emotional disorder dimensions were similar regardless of whether the emotion regulation dimensions were held constant. These results suggest that self-reported emotion regulation dimensions are associated with the severity and expression of a range of emotional disorder symptoms, but that some emotion regulation dimensions have limited incremental validity after accounting for general emotional reactivity. Studies of emotion regulation should assess neuroticism as a key covariate.
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Regulación Emocional , Ansiedad , Trastornos de Ansiedad , Emociones , Humanos , Trastornos del HumorRESUMEN
A growing literature is utilizing machine learning methods to develop psychopathology risk algorithms that can be used to inform preventive intervention. However, efforts to develop algorithms for internalizing disorder onset have been limited. The goal of this study was to utilize prospective survey data and ensemble machine learning to develop algorithms predicting adult onset internalizing disorders. The data were from Waves 1-2 of the National Epidemiological Survey on Alcohol and Related Conditions (n = 34,653). Outcomes were incident occurrence of DSM-IV generalized anxiety, panic, social phobia, depression, and mania between Waves 1-2. In total, 213 risk factors (features) were operationalized based on their presence/occurrence at the time of or before Wave 1. For each of the five internalizing disorder outcomes, super learning was used to generate a composite algorithm from several linear and non-linear classifiers (e.g., random forests, k-nearest neighbors). AUCs achieved by the cross-validated super learner ensembles were in the range of 0.76 (depression) to 0.83 (mania), and were higher than AUCs achieved by the individual algorithms. Individuals in the top 10% of super learner predicted risk accounted for 37.97% (depression) to 53.39% (social anxiety) of all incident cases. Thus, the algorithms achieved acceptable-to-excellent prediction accuracy with a high concentration of incident cases observed among individuals predicted to be highest risk. In parallel with the development of effective preventive interventions, further validation, expansion, and dissemination of algorithms predicting internalizing disorder onset/trajectory could be of great value.
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Trastornos de Ansiedad/diagnóstico , Trastorno Bipolar/diagnóstico , Trastorno Depresivo/diagnóstico , Aprendizaje Automático , Medición de Riesgo , Adulto , Encuestas Epidemiológicas , Humanos , Estudios Longitudinales , Trastorno de Pánico/diagnóstico , Fobia Social/diagnósticoRESUMEN
BACKGROUND: Although parents are often the first to facilitate help-seeking in their children, parental perceptions regarding mental health serve as a significant barrier to the access of mental health services. This study examined mental health perceptions held by Chinese immigrant parents of youth. METHODS: Eighteen parents (13 female, 5 male), who identified as having children between the ages of 13 and 21 years, participated in audio-recorded interviews using five vignettes depicting depression with and without a somatic emphasis, schizophrenia with paranoid features, attenuated psychosis syndrome, and social anxiety in youth. Questions about potential causes, likely diagnosis, and health-seeking behaviors in relation to these vignettes were asked. Interviews were analyzed for themes using a deductive-inductive hybrid approach, informed by the explanatory models that have shed light on Asian perceptions of mental illness and approaches to help-seeking. RESULTS: While Asian groups are often considered as lacking in mental health knowledge, we found that Chinese immigrant parents were comfortable with psychological terminology as it pertained to identifying causes and describing supportive strategies and the seeking of Western-based providers. However, the majority of Chinese immigrant parent respondents did not easily note suicidality. Furthermore, respondents did not consider social anxiety as a major mental health issue among Chinese immigrant parents and attributed social anxiety to personality or cultural differences. DISCUSSION: These findings provide an understanding of how Chinese immigrant parents conceptualize mental illness and help-seeking, which may be helpful for providers when working with Chinese immigrant parents of children that have a mental health concern.
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Conducta del Adolescente/etnología , Asiático , Conocimientos, Actitudes y Práctica en Salud/etnología , Trastornos Mentales/etnología , Padres , Adolescente , Adulto , China/etnología , Emigrantes e Inmigrantes , Femenino , Humanos , Masculino , Persona de Mediana Edad , New England/etnología , Investigación Cualitativa , Adulto JovenRESUMEN
Using a factor mixture model (FMM) approach, this study examined if SAD could be subtyped by distinct risk profiles, and whether these subtypes predicted different manifestations of the disorder. We derived risk profiles from neurotic temperament (NT), positive temperament (PT), and autonomic arousability (AA), which are hypothesized to be important in the maintenance of anxiety disorders such as SAD. In our sample of 758 SAD outpatients, a two-class FMM solution fit the data best. Class 1 was characterized by very low PT whereas PT in Class 2 was substantially higher. The two classes differed to a lesser extent on NT, but were virtually equivalent on AA. Class 1 had significantly more males, individuals with depressive disorders, generalized SAD, and higher SAD severity. Class 2 had more individuals with performance subtype SAD. These findings provide initial support for distinct risk profiles within SAD that may be predictive of its clinical expression.
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BACKGROUND: A promising approach to reducing the phenotypic heterogeneity of psychiatric disorders involves the identification of homogeneous subtypes. Careful study of comorbidity in obsessive-compulsive disorder (OCD) contributed to the identification of the DSM-5 subtype of OCD with tics. Here we investigated one of the largest available cohorts of clinically diagnosed trichotillomania (TTM) to determine whether subtyping TTM based on comorbidity would help delineate clinically meaningful subgroups. METHODS: As part of an ongoing international collaboration, lifetime comorbidity data were collated from 304 adults with pathological hair-pulling who fulfilled criteria for DSM-IV-TR or DSM-5 TTM. Cluster analysis (Ward's method) based on comorbidities was undertaken. RESULTS: Three clusters were identified, namely Cluster 1: cases without any comorbidities (n = 63, 20.7%) labeled "simple TTM," Cluster 2: cases with comorbid major depressive disorder only (N = 49, 16.12%) labeled "depressive TTM," and Cluster 3: cases presenting with combinations of the investigated comorbidities (N = 192, 63.16%) labeled "complex TTM." The clusters differed in terms of hair-pulling severity (F = 3.75, p = .02; Kruskal-Wallis [KW] p < .01) and depression symptom severity (F = 5.07, p = <.01; KW p < .01), with cases with any comorbidity presenting with increased severity. Analysis of the temporal nature of these conditions in a subset suggested that TTM onset generally preceded major depressive disorder in (subsets of) Clusters 2 and 3. CONCLUSIONS: The findings here are useful in emphasizing that while many TTM patients present without comorbidity, depression is present in a substantial proportion of cases. In clinical practice, it is crucial to assess comorbidity, given the links demonstrated here between comorbidity and symptom severity. Additional research is needed to replicate these findings and to determine whether cluster membership based on comorbidity predicts response to treatment.
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Trastorno Depresivo Mayor/epidemiología , Trastorno Obsesivo Compulsivo/epidemiología , Tricotilomanía/epidemiología , Adolescente , Adulto , Anciano , Comorbilidad , Trastorno Depresivo Mayor/diagnóstico , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastorno Obsesivo Compulsivo/diagnóstico , Índice de Severidad de la Enfermedad , Tricotilomanía/diagnóstico , Adulto JovenRESUMEN
The goals of this study were to estimate the prevalence of the DSM-5 anxious distress specifier (AD) among depressed outpatients, to examine associations of AD with comorbid diagnoses, and to test the incremental validity of AD over comorbidity in predicting functional impairment and severity of anxiety and depression symptoms. The sample was 237 outpatients diagnosed with major depressive disorder (MDD) or persistent depressive disorder (PDD), with and without AD, using the Anxiety and Related Disorders Interview Schedule for DSM-5. Outpatients also completed self-report questionnaires assessing functional impairment and anxiety, stress, and depression symptom severity. Two-by-two contingency tables were used to examine the associations of AD with comorbidity. Two-thirds (66.2%) of outpatients were assigned AD, with similar rates among those with MDD and PDD. Outpatients with AD were significantly more likely than those without AD to have a comorbid GAD diagnosis (ORâ¯=â¯2.47). Hierarchical multiple regressions were used to test the incremental validity of AD in predicting functional impairment and symptom outcomes beyond comorbid disorders. Controlling for comorbid disorders, AD was significantly associated with more severe functional impairment, autonomic arousal, stress, panic, generalized anxiety, and depression. The strongest incremental association were observed between AD and autonomic arousal (f2â¯=â¯0.12-0.18) and generalized anxiety (f2â¯=â¯0.17). These findings add to a growing literature that AD is common among outpatients and associated with important clinical outcomes, suggesting that AD should be routinely assessed in patients with mood disorders.
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Trastornos de Ansiedad/epidemiología , Trastornos de Ansiedad/etiología , Trastorno Depresivo Mayor/complicaciones , Trastorno Depresivo Mayor/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Trastornos de Ansiedad/diagnóstico , Comorbilidad , Trastorno Depresivo Mayor/diagnóstico , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pacientes Ambulatorios , Prevalencia , Escalas de Valoración Psiquiátrica , Análisis de Regresión , Adulto JovenRESUMEN
Trichotillomania/hair pulling disorder (HPD) and excoriation/skin picking disorder (SPD) are childhood-onset, body-focused repetitive behaviors that are thought to share genetic susceptibility and underlying pathophysiology with obsessive-compulsive disorder (OCD) and Tourette syndrome (TS). We sought to determine the prevalence of DSM-5 HPD and SPD in TS patients, and to identify clinical factors most associated with their co-morbidity with TS. Participants included 811 TS patients recruited from TS specialty clinics for a multi-center genetic study. Patients were assessed using standardized, validated semi-structured interviews. HPD and SPD diagnoses were determined using a validated self-report questionnaire. HPD/SPD prevalence rates were calculated, and clinical predictors were evaluated using regression modeling. 3.8 and 13.0% of TS patients met DSM-5 criteria for HPD and SPD, respectively. In univariable analyses, female sex, OCD, and both tic and obsessive-compulsive symptom severity were among those associated with HPD and/or SPD. In multivariable analyses, only lifetime worst-ever motor tic severity remained significantly associated with HPD. Female sex, co-occurring OCD, ADHD, and motor tic severity remained independently associated with SPD. This is the first study to examine HPD and SPD prevalence in a TS sample using semi-structured diagnostic instruments. The prevalence of HPD and SPD in TS patients, and their association with increased tic severity and co-occurring OCD, suggests that clinicians should screen children with TS and related disorders for HPD/SPD, particularly in females and in those with co-occurring OCD. This study also helps set a foundation for subsequent research regarding HPD/SPD risk factors, pathophysiology, and treatment models.
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Trastorno Obsesivo Compulsivo/etiología , Conducta Autodestructiva/etiología , Síndrome de Tourette/diagnóstico , Tricotilomanía/etiología , Niño , Comorbilidad , Femenino , Humanos , Masculino , Prevalencia , Encuestas y Cuestionarios , Síndrome de Tourette/patologíaRESUMEN
Worry behaviors (i.e., overt acts to avoid or cope with worry-induced distress) have been recognized as being important in the psychopathology and treatment of generalized anxiety disorder (GAD). This study evaluated the worry behaviors criterion proposed for DSM-5 GAD, but was ultimately not adopted due to insufficient evidence. In 800 outpatients with emotional disorders (366 with GAD), most patients with GAD (92.6%) met the proposed worry behaviors criterion, which was at a rate significantly higher than other patient groups (e.g., patients with mood disorders). Patients who met the worry behaviors criterion had more severe GAD than patients who did not. The worry behaviors criterion, and 3 of its 4 constituent behaviors, were associated with no better than "fair" interrater reliability. Diagnostic reliability of GAD was not improved in cases where both interviewers agreed the worry behaviors criterion was met. The worry behaviors criterion significantly predicted DSM-5 GAD holding core GAD features constant (e.g., excessive worry), but this contribution was weak and did not appreciably improve the classification accuracy of GAD diagnostic status. Mixed support was obtained for the discriminant validity of the worry behaviors criterion in relation to mood disorders. Raising the proposed threshold of the criterion (requiring 2 instead of 1 behaviors) did not result in a substantial improvement in reliability, prediction, and classification accuracy. Although additional research is warranted (e.g., importance of worry behaviors in the treatment and natural course of GAD), the results raise questions about the role of worry behaviors in the diagnostic classification of GAD.
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Trichotillomania (TTM) and eating disorders (ED) share many phenomenological similarities, including ritualized compulsive behaviors. Given this, and that comorbid EDs may represent additional functional burden to hair pullers, we sought to identify factors that predict diagnosis of an ED in a TTM population. Subjects included 555 adult females (age range 18-65) with DSM-IV-TR TTM or chronic hair pullers recruited from multiple sites. 7.2% (N=40) of our TTM subjects met criteria for an ED in their lifetime. In univariable regression analysis, obsessive-compulsive disorder (OCD), Yale-Brown Obsessive Compulsive Scale (Y-BOCS) worst-ever compulsion and total scores, certain obsessive-compulsive spectrum disorders, anxiety disorder, attention-deficit/hyperactivity disorder (ADHD), and substance disorder all met the pre-specified criteria for inclusion in the multivariable analysis. In the final multivariable model, diagnosis of OCD (OR: 5.68, 95% CI: 2.2-15.0) and diagnosis of an additional body-focused repetitive behavior disorder (BFRB) (OR: 2.69, 95% CI: 1.1-6.8) were both associated with increased risk of ED in TTM. Overall, our results provide further support of the relatedness between ED and TTM. This finding highlights the importance of assessing for comorbid OCD and additional BFRBs in those with TTM. Future research is needed to identify additional predictors of comorbid disorders and to better understand the complex relationships between BFRBs, OCD and EDs.
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Trastornos de Ansiedad/epidemiología , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Trastorno de Personalidad Compulsiva/epidemiología , Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología , Trastorno Obsesivo Compulsivo/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Tricotilomanía/epidemiología , Adolescente , Adulto , Comorbilidad , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Humanos , Persona de Mediana Edad , Factores de Riesgo , Sudáfrica/epidemiología , Estados Unidos/epidemiologíaRESUMEN
BACKGROUND: Trichotillomania (TTM), obsessive-compulsive disorder (OCD), and skin-picking disorder (SPD) frequently occur together and share overlapping phenomenology, pathophysiology, and possible genetic underpinnings. This study sought to identify factors that predict OCD and SPD in hair pullers. METHODS: Five hundred fifty-five adult female hair pullers were recruited from specialty clinics and assessed using standardized, semi-structured interviews and self-reports. Clinical predictors and multivariate models were evaluated using logistic regression modeling. RESULTS: Hair pullers met criteria for OCD (18.9%), SPD (19.5%), or chronic skin picking (CSP) (5%), or both comorbid diagnoses, respectively. In the final multivariate model for OCD, family history of OCD and an eating disorder diagnosis were associated with an increased risk of OCD in TTM. A nail-biting diagnosis was associated with a decreased risk of OCD in TTM. In the final multivariate model for SPD/CSP, only family history of OCD was associated with an increased risk of SPD/CSP in TTM. CONCLUSIONS: Identification of factors predicting OCD and SPD in TTM provides evidence for the relatedness of these disorders and supports their collective classification as obsessive-compulsive and related disorders (OCRDs) in DSM-5. The findings of this study further underscore the importance of assessing for comorbid OCRDs and family histories of OCRDs in clinical practice.
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Comorbilidad , Trastorno Obsesivo Compulsivo/epidemiología , Tricotilomanía/epidemiología , Adulto , Trastorno Dismórfico Corporal , Familia , Femenino , Humanos , Trastorno Obsesivo Compulsivo/genética , Encuestas y CuestionariosRESUMEN
BACKGROUND: Skin-picking disorder (SPD) was recognized as its own entity for the first time in DSM-5. The existing SPD literature is limited and, to date, no study has examined the differences between clinical and sub- clinical SPD. Identifying differences between these 2 groups may improve diagnostic accuracy, treatment, and prevention efforts. METHODS: Israeli adults (N = 4,325) from 2 previous studies were examined for the presence of clinical and subclinical SPD. Individuals with clinical SPD (n = 150) vs subclinical SPD (n = 219) were compared on skin-picking characteristics, psychological phenomena, and clinical correlates. RESULTS: There were many similarities between clinical and subclinical skin pickers. Individuals with clinical SPD, however, had more severe skin picking, greater associated functional impairment, greater perceived stress, and greater depressive and obsessive-compulsive symptoms, and were also more likely to have a first-degree relative with SPD. CONCLUSIONS: This study suggests that although there are some similarities between clinical and subclinical SPD, there also are distinct differences in the clinical presentation. Understanding these differences may be an important factor in treatment and prevention planning.
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Trastorno Obsesivo Compulsivo/epidemiología , Trastorno Obsesivo Compulsivo/psicología , Autoinforme , Adulto , Árabes/psicología , Trastorno Dismórfico Corporal/epidemiología , Trastorno Dismórfico Corporal/psicología , Comparación Transcultural , Femenino , Humanos , Israel/epidemiología , Judíos , Masculino , Estrés Psicológico , Encuestas y CuestionariosRESUMEN
BACKGROUND: Trichotillomania (TTM) appears to be a fairly common disorder, yet little is known about sex differences in its clinical presentation. Long thought to be a primarily female disorder, males with TTM may have unique clinical presentations. METHODS: Participants with TTM (N = 462) were examined on a variety of clinical measures including symptom severity, functioning, and psychiatric comorbidity. Clinical features were compared between males (n = 27) and females (n = 435). RESULTS: There were many similarities in the clinical presentations of males and females with TTM. Males with TTM, however, were more likely to pull from their face, arms, and torso, and were more likely to suffer from a co-occurring substance use disorder. Females were more likely to be younger and less likely to be married. CONCLUSIONS: This study suggests that, although few males seek treatment for TTM, sex differences may be an important clinical factor when assessing and treating this disorder. Further research is needed to validate these findings and identify whether treatments should be tailored differently for males and females with TTM.
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Comorbilidad , Trastorno Obsesivo Compulsivo/epidemiología , Tricotilomanía/epidemiología , Tricotilomanía/psicología , Adulto , Femenino , Humanos , Masculino , Escalas de Valoración Psiquiátrica/estadística & datos numéricos , Factores SexualesRESUMEN
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.
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Personalidad/fisiología , Tricotilomanía/fisiopatología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Personalidad/clasificación , Tricotilomanía/clasificación , Adulto JovenRESUMEN
To ascertain how patient age influences suicide risk assessment, clinicians (N = 262) read an ambiguous vignette about Bill (aged either 39 or 79 years old) and subsequently rated Bill's suicide risk and hospitalization needs. Suicide-risk ratings varied greatly and young clinicians rated Bill's suicide risk and hospitalization needs higher when he was elderly (79 years old); whereas, older clinicians rated Bill's suicide risk and need for hospitalization higher when he was younger (39 years old). The interaction between patient and clinician age may reflect a "similarity" bias, such that clinicians perceive those who are different (i.e., younger or older) to be at elevated risk.
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Actitud del Personal de Salud , Toma de Decisiones Clínicas , Suicidio , Adulto , Factores de Edad , Anciano , Femenino , Hospitalización , Humanos , Masculino , Persona de Mediana Edad , Medición de Riesgo , Adulto JovenRESUMEN
Objective: To examine whether personality traits have predictive validity for trichotillomania (TTM) diagnosis, pulling severity and control, and hair pulling style. Methods: In study 1, logistic regression was used with TTM cases (n=54) and controls (n=25) to determine if NEO Five-Factor Inventory (NEO-FFI) personality domains predicted TTM case vs. control classification. In study 2, hierarchical multiple regression was used with TTM cases (n=164) to determine whether NEO-FFI personality domains predicted hair pulling severity and control as well as focused and automatic pulling styles. Results: TTM case vs. control status was predicted by NEO-FFI neuroticism. Every 1-point increase in neuroticism scores resulted in a 10% greater chance of TTM diagnosis. Higher neuroticism, higher openness, and lower agreeableness were associated with greater pulling severity. Higher neuroticism was also associated with less control over hair pulling. Higher neuroticism and lower openness were associated with greater focused pulling. None of the personality domains predicted automatic hair pulling. Conclusions: Personality traits, especially neuroticism, can predict TTM diagnosis, hair pulling severity and control, and the focused style of pulling. None of the personality traits predicted automatic pulling. Longitudinal studies are needed to determine whether personality variables predispose to TTM onset, impact disorder course, and/or result from hair pulling behavior.
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Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Trastornos de la Personalidad/psicología , Personalidad/fisiología , Tricotilomanía/diagnóstico , Tricotilomanía/psicología , Trastornos de Ansiedad/fisiopatología , Trastornos de Ansiedad/psicología , Estudios de Casos y Controles , Comorbilidad , Modelos Logísticos , Trastornos de la Personalidad/fisiopatología , Inventario de Personalidad/normas , Valor Predictivo de las Pruebas , Escalas de Valoración Psiquiátrica/normas , Índice de Severidad de la Enfermedad , Tricotilomanía/fisiopatologíaRESUMEN
OBJECTIVE: To examine whether personality traits have predictive validity for trichotillomania (TTM) diagnosis, pulling severity and control, and hair pulling style. METHODS: In study 1, logistic regression was used with TTM cases (n=54) and controls (n=25) to determine if NEO Five-Factor Inventory (NEO-FFI) personality domains predicted TTM case vs. control classification. In study 2, hierarchical multiple regression was used with TTM cases (n=164) to determine whether NEO-FFI personality domains predicted hair pulling severity and control as well as focused and automatic pulling styles. RESULTS: TTM case vs. control status was predicted by NEO-FFI neuroticism. Every 1-point increase in neuroticism scores resulted in a 10% greater chance of TTM diagnosis. Higher neuroticism, higher openness, and lower agreeableness were associated with greater pulling severity. Higher neuroticism was also associated with less control over hair pulling. Higher neuroticism and lower openness were associated with greater focused pulling. None of the personality domains predicted automatic hair pulling. CONCLUSIONS: Personality traits, especially neuroticism, can predict TTM diagnosis, hair pulling severity and control, and the focused style of pulling. None of the personality traits predicted automatic pulling. Longitudinal studies are needed to determine whether personality variables predispose to TTM onset, impact disorder course, and/or result from hair pulling behavior.
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Trastornos de la Personalidad/psicología , Personalidad/fisiología , Tricotilomanía/diagnóstico , Tricotilomanía/psicología , Adolescente , Adulto , Anciano , Trastornos de Ansiedad/fisiopatología , Trastornos de Ansiedad/psicología , Estudios de Casos y Controles , Comorbilidad , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Neuroticismo , Trastornos de la Personalidad/fisiopatología , Inventario de Personalidad/normas , Valor Predictivo de las Pruebas , Escalas de Valoración Psiquiátrica/normas , Índice de Severidad de la Enfermedad , Tricotilomanía/fisiopatología , Adulto JovenRESUMEN
In the present study, we evaluated the Milwaukee Inventory for Subtypes of Trichotillomania-Adult Version (MIST-A) in a replication sample of clinically characterized hair pullers using exploratory factor analysis (EFA; N = 193). EFA eigenvalues and visual inspection of our scree plot revealed a two-factor solution. Factor structure coefficients and internal consistencies suggested a 13-item scale with an 8-item "Intention" scale and a 5-item "Emotion" scale. Both scales displayed good construct and discriminant validity. These findings indicate the need for a revised scale that provides a more refined assessment of pulling phenomenology that can facilitate future treatment advances.
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Tricotilomanía/diagnóstico , Adulto , Análisis Factorial , Femenino , Humanos , Masculino , Escalas de Valoración Psiquiátrica , Psicometría , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad , Tricotilomanía/clasificaciónRESUMEN
BACKGROUND: To date, there has been no investigation of dissemination outcomes for cognitive-behavioral training programs for body-focused repetitive behaviors (BFRBs). METHODS: Sixty-three past participants of the Trichotillomania Learning Center (TLC) intensive professional training institutes completed an online survey assessing referral sources, skills utilization, and treatment outcomes before and after training. The intensive training focused on the treatment of trichotillomania (hair-pulling) disorder and excoriation (skin-picking) disorder using in-person or videotaped didactics, role playing, and case presentations with supervision upon request. RESULTS: Participants endorsed a greater number of referral sources and BFRB patients after attending training. Paired t tests indicated significant pre- to post-training increases in self-reported utilization of all individual cognitive-behavioral therapy (CBT) skills as well as overall mean skills usage (both P<.001). Changes after training in the reported percent of abstinent patients and mean reduction in symptom severity were also noted. CONCLUSIONS: The TLC intensive professional training institutes may be useful for disseminating CBT skills for the treatment of BFRBs, but additional research is warranted.
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Terapia Cognitivo-Conductual/métodos , Difusión de la Información , Conducta Autodestructiva/terapia , Piel/lesiones , Tricotilomanía/terapia , Humanos , Capacitación en ServicioRESUMEN
BACKGROUND: Limited research has investigated disability and functional impairment in trichotillomania (TTM) subjects. This study examined the relationships between hair pulling (HP) style and severity and disability while controlling for mood severity. Disability was measured in individual life areas (work, social, and family/home life) instead of as a total disability score as in previous studies. METHODS: One hundred fifty three adult hair pullers completed several structured interviews and self-report instruments. HP style and severity, as well as depression, anxiety, and stress were correlated with work, social, and family/home life impairment on the Sheehan Disability Scale (SDS). Multiple regression analyses were performed to determine significant predictors of life impairment. RESULTS: Depressive severity was a significant predictor for all SDS life areas. In addition, interference/avoidance associated with HP was a predictor for work and social life disability. Distress from HP was a significant predictor of social and family/home life disability. Focused HP score and anxiety were significant predictors of family/home life disability. CONCLUSIONS: As expected, depression in hair pullers predicted disability across life domains. Avoiding work and social situations can seriously impair functioning in those life domains. Severity of distress and worry about HP may be most elevated in social situations with friends and family and thus predict impairment in those areas. Finally, since HP often occurs at home, time spent in focused hair pulling would have a greater negative impact on family and home responsibilities than social and work life.