Using machine learning algorithm to predict the risk of post-traumatic stress disorder among firefighters in Changsha / 中南大学学报(医学版)

OBJECTIVES@#Firefighters are prone to suffer from psychological trauma and post-traumatic stress disorder (PTSD) in the workplace, and have a poor prognosis after PTSD. Reliable models for predicting PTSD allow for effective identification and intervention for patients with early PTSD. By collecting the psychological traits, psychological states and work situations of firefighters, this study aims to develop a machine learning algorithm with the aim of effectively and accurately identifying the onset of PTSD in firefighters, as well as detecting some important predictors of PTSD onset.@*METHODS@#This study conducted a cross-sectional survey through convenient sampling of firefighters from 20 fire brigades in Changsha, which were evenly distributed across 6 districts and Changsha County, with a total of 628 firefighters. We used the synthetic minority oversampling technique (SMOTE) to process data sets and used grid search to finish the parameter tuning. The predictive capability of several commonly used machine learning models was compared by 5-fold cross-validation and using the area under the receiver operating characteristic curve (ROC-AUC), accuracy, precision, recall, and F1 score.@*RESULTS@#The random forest model achieved good performance in predicting PTSD with an average AUC score at 0.790. The mean accuracy of the model was 90.1%, with an F1 score of 0.945. The three most important predictors were perseverance, forced thinking, and reflective deep thinking, with weights of 0.165, 0.158, and 0.152, respectively. The next most important predictors were employment time, psychological power, and optimism.@*CONCLUSIONS@#PTSD onset prediction model for Changsha firefighters constructed by random forest has strong predictive ability, and both psychological characteristics and work situation can be used as predictors of PTSD onset risk for firefighters. In the next step of the study, validation using other large datasets is needed to ensure that the predictive models can be used in clinical setting.

Antecedente de depresión, síntomas de estrés postraumático, apoyo social percibido: prediciendo la depresión posparto / History of depression, post-traumatic stress symptoms, perceived social support: predicting postpartum depression

Objetivo: Describir y analizar si el apoyo social percibido modera la relación entre antecedente de depresión (AD) o síntomas de trastorno de estrés postraumático (TEPT) y desarrollo de síntomas de depresión posparto (SDPP), evaluado prospectivamente. Método: Diseño longitudinal de tres tiempos: antes del parto (n = 458), primer mes posparto (n = 406) y tercer mes posparto (n = 426). Se utilizaron la Escala de Depresión Posparto de Edimburgo (EPDS), la Escala de Síntomas de Estrés Postraumático (PCL-C) y la Escala de Apoyo Social Percibido (MOS). Se realizó un análisis de ocho modelos jerárquicos de regresión lineal múltiple, por cada tiempo de evaluación en el estudio. Resultados: Se encontró una asociación significativa entre síntomas de TEPT y puntaje de SDPP en los tres tiempos. El apoyo social percibido es un factor protector significativo para los SDPP en los tiempos 1 y 2, mientras que el AD es un factor de riesgo significativo en los tiempos 2 y 3. Los resultados no apoyan las hipótesis de interacción. Conclusiones: El apoyo social es un factor protector significativo, que puede disminuir los SDPP; sin embargo, disminuye con el tiempo. El apoyo social no logra revertir la asociación de los síntomas de TEPT con el puntaje en SDPP.

Objective: Describe and analyze if the perceived social support moderates the relationship between depression history or post-traumatic stress disorder symptoms and the development of symptoms of postpartum depression, prospectively evaluated. Method: Longitudinal design of three times: before partum (n = 458), one month (n = 458) and 3 months postpartum (n = 458). The version of the Edinburgh Postnatal Depression Scale (EPDS), the version of the PTSD Checklist-Civilian Version (PCL-C), and the version of the Medical Outcomes Study Social Support Survey (MOS) were used. Analysis of eight hierarchical multiple linear regression models. Results: A significant association was found between symptoms of post-traumatic stress and postpartum depression, in the three times measured. The perceived social support variable was found to be a significant protective factor for perinatal depression in times 1 and 2, and history of depression was significant in times 2 and 3. The results do not support the interaction hypothesis. Conclusions: Social support is a significant protective factor, which can reduce the symptoms of postpartum depression, nevertheless the significance decreases over time. However, social support fails to reverse the association of post-traumatic stress disorder symptoms with symptoms of postpartum depression score.

Post-traumatic stress disorder and congenital anomalies in prenatal care / Transtorno de estresse pós-traumático e anomalias congênitas no pré-natal

Abstract Objective: to assess post-traumatic stress disorder (PTSD) symptoms in pregnant women diagnosed with congenital anomaly. Methods: his is a quantitative and cross-correlational study. The sample consisted of 111 pregnant women diagnosed with congenital anomaly between 2013 and 2014. We used a semi-structured questionnaire and the Impact of Events Scale - Revised (IES-R). For statistical analysis, the chi-square test, Student's t test or Mann-Whitney test, Cronbach Alpha coefficients, Pearson's correlation and simple linear regression models. Results: viable congenital anomalies corresponded to 66.6%, and non-viable, to 33.3%. The average of all areas of IES-R, as well as the sum of matters concerning IES-R, were high in all pregnant women diagnosed with congenital anomaly. Using a cut of 5.6 units in the IES-Rtotal score, we found that 46.8% of pregnant women diagnosed with a congenital anomaly showed PTSD symptoms; however, symptoms were more frequent among pregnant women diagnosed with non-viable congenital anomaly (64.9%). The IES-R intrusion and hyperstimulation dimensions were more correlated. We observed a decreasing connection with PTSD symptoms in relation to the time of the notification of congenital anomaly diagnosis. Conclusions: PTSD symptoms were more frequent in pregnant women diagnosed with non-viable congenital anomaly.

Resumo Objetivos: avaliar os sintomas do Transtorno de Estresse Pós-Traumático (TEPT) em gestantes com diagnóstico fetal de anomalia congênita. Métodos: estudo quantitativo e transversal-correlacional. A amostra foi composta por 111 gestantes com diagnóstico de anomalia, entre 2013 a 2014. Foi utilizado um questionário semiestruturado e a Escala do Impacto do Evento - Revisada (IES-R). Para a análise estatística o teste Qui quadrado, t de Student ou Mann-Whitney, coefficientes alfa de Cronbach, correlação de Pearson e modelos de regressão linear simples. Resultados: as anomalias congênitas viáveis corresponderam a 66,6% e as inviáveis, a 33,3%. A média de todos os domínios da IES-R como a soma das questões dos domínios da IES-R foram altas nas gestantes com diagnóstico de anomalia congênita. Ao se utilizar um corte de 5,6 unidades no escore total da IES-R, 46,8% de todas as gestantes com diagnóstico de anomalia congênita apresentaram sintomas de TEPT, sendo mais frequente entre as gestantes com diagnóstico de anomalia congênita inviável (64,9%). As questões de intrusão e hiperestimulação da escala IES-R estiveram mais correlacionadas entre si. Pareceu existir uma relação decrescente dos sintomas de TEPT, em relação ao tempo da notícia do diagnóstico de anomalia congênita. Conclusão: os sintomas do TEPT estiveram mais presentes em gestantes com diagnóstico de anomalia congênita inviável.

Predictors of response to cognitive-behavioral therapy in patients with posttraumatic stress disorder: a systematic review / Preditores de resposta à terapia cognitivo-comportamental em pacientes com transtorno de estresse pós-traumático: uma revisão sistemática

OBJETIVO: O transtorno de estresse pós-traumático (TEPT) é um transtorno altamente prevalente e incapacitante. Mesmo quando tratado com uma intervenção de primeira linha, terapia cognitivo-comportamental (TCC), 45% dos pacientes continuam sofrendo desse transtorno. Portanto, conhecer os fatores que podem prever quem responderá à TCC seria de grande valor no tratamento desses pacientes. Por esse motivo, revisamos sistematicamente a literatura para identificar as variáveis que poderiam predizer a resposta à TCC em pacientes que sofrem de TEPT. MÉTODOS: Seguindo as diretrizes do PRISMA 2020, pesquisamos em banco de dados eletrônico como ISI Web of Science, Scopus, PsycINFO, MEDLINE e PTSDpubs até novembro de 2021. Dois autores conduziram independentemente a seleção do estudo e a extração de dados. Estudos que examinaram possíveis preditores de resposta à terapia, com amostra de adultos (18-65 anos) de ambos os sexos, com e sem comorbidades, foram considerados elegíveis. As características dos estudos foram sintetizadas em uma tabela. O risco de viés foi avaliado pela ferramenta de avaliação de qualidade de risco de viés da Cochrane. RESULTADOS: Vinte e oito estudos envolvendo 15 variáveis foram selecionados. Desses, oito mostraram baixo risco de viés, 19 mostraram algumas preocupações e um mostrou alto risco potencial de viés. A relação terapêutica foi a única variável considerada um preditor de boa resposta à terapia. Todas as outras variáveis apresentaram resultados conflitantes. CONCLUSÕES: A variável mais promissora, embora muito fraca cientificamente, é a relação terapêutica. Ensaios clínicos randomizados adicionais devem ser conduzidos para esclarecer o papel dessa variável como um preditor de resposta da TCC em pacientes com TEPT.

OBJECTIVE: Posttraumatic stress disorder (PTSD) is a highly prevalent and disabling disorder. Even when treated with the first-line intervention, cognitive-behavioral therapy (CBT), 45% of the patients continue suffering from this disorder. Therefore, knowing the factors that could foresee who will respond to CBT would be of great value to the treatment of these patients. Thus, we have systematically reviewed the literature to identify the variables that could predict response to CBT in patients suffering from PTSD. METHODS: Following the PRISMA 2020 guidelines, we searched the electronic databases ISI Web of Science, Scopus, PsycINFO, MEDLINE, and PTSDpubs until November 2021. Two authors have independently conducted study selection and data extraction. Studies that examined possible predictors of response to therapy on a sample of adults (18-65 years), both genders, with and without comorbidities were considered eligible. The characteristics of the studies were synthesized in a table. The risk of bias was assessed by the Cochrane risk of bias quality assessment tool. RESULTS: Twenty- -eight studies comprising 15 variables were selected. Among those, eight showed a low risk of bias, 19 showed some concerns, and one showed a high potential risk of bias. The therapeutic relationship was the only variable considered to be a predictor of a good response to therapy. All other variables showed conflicting results. CONCLUSIONS: The most promising variable, although scientifically weak, is the therapeutic relationship. Additional randomized clinical trials should be conducted to clarify the role of this variable as a predictor of response to CBT in patients with PTSD.

The first instrument for complex PTSD assessment: psychometric properties of the ICD-11 Trauma Questionnaire

Objective: The ICD-11 Trauma Questionnaire (ITQ) was developed as a joint effort by researchers from several countries to evaluate post-traumatic stress (PTSD) and complex-PTSD (C-PTSD) symptoms. This study is part of a multi-center international collaborative research project that aims to provide psychometric support for this initial instrument in different languages, considering the specific contexts related to complex traumatization. This study verified the psychometric characteristics of the Portuguese version of the ITQ, evaluating symptoms beyond those described the existing literature. Methods: We examined the results of a convenience sample totaling 268 Portuguese and Angolan participants. Two instruments were applied: the ITQ, which evaluates symptoms resulting from a traumatic life event, and the Life Events Checklist (LEC), which evaluates stressful life events. The general characteristics of the scales are described, and reliability analysis and validity studies were performed. Results: Cronbach's alpha varied between 0.84 and 0.88, and the exploratory factorial analysis results were consistent with the concept of C-PTSD, with five components explaining 61.58% of scale variance. Conclusion: The results suggest good psychometric characteristics for the Portuguese version of the ITQ, and thus it can be included in protocols intended evaluating complex traumatic symptoms.

Tentativa de suicídio, transtorno de estresse pós-traumático e fatores associados em mulheres do Recife / Suicide attempt, Post-traumatic stress disorder and associated factors in women of Recife

RESUMO: Objetivo: Investigar a associação da tentativa de suicídio (TS) com o transtorno de estresse pós-traumático (TEPT), a violência por parceiro íntimo (VPI) e variáveis relacionadas aos aspectos socioeconômicos e demográficos em uma coorte de mulheres cadastradas na Estratégia Saúde da Família do Recife. Métodos: Foi realizado um estudo transversal, aninhado em um estudo de coorte prospectivo, com 644 mulheres de 18 a 49 anos, cadastradas na Estratégia Saúde da Família do Distrito Sanitário II da cidade do Recife (PE), entre julho de 2013 e dezembro de 2014. A TS foi avaliada pela pergunta "Já tentou pôr fim à sua vida?", e o TEPT, diagnosticado por meio do Post-traumatic Stress Disorder Checklist - Civilian Version (PCL-C). Foram realizadas uma modelagem hierarquizada, a aplicação do teste χ2 e a análise de resíduos padronizados. A associação das variáveis independentes com a TS foi estimada por meio de regressão logística simples e ajustada. Resultados: A prevalência da TS foi de 10,9%, e a frequência de TEPT, de 16%. As mulheres que tinham TEPT e também as que não possuíam religião tiveram maior chance de tentar o suicídio (odds ratio - OR = 5,11, intervalo de confiança de 95% - IC95% 2,9 - 8,7; OR = 1,76, IC95% 1,0 - 2,9, respectivamente). Conclusões: Houve maior risco de TS nas mulheres que tiveram TEPT e baixa adesão a uma religião. Sendo assim, compreendeu-se que o enfrentamento do TEPT se dá prevenindo esse transtorno, tratando dele e promovendo mais conhecimentos sobre ele, além do efeito agregador e protetor social que a religiosidade promove, que também podem ser estratégias de redução e prevenção da TS.

ABSTRACT: Objective: To investigate the association of suicide attempt (SA) with Post-Traumatic Stress Disorder (PSTD), Intimate Partner Violence (IPV) and variables related to socioeconomic and demographic aspects in a cohort of women enrolled in the Family Health Strategy in Recife. Methods: A cross-sectional study was carried out, nested in a prospective cohort study with 644 women aged 18 to 49 enrolled in the Family Health Strategy of the Sanitary District II of Recife, PE, between July 2013 and December 2014. The SA was evaluated by the question "Have you ever tried to end your life?" PTSD was diagnosed through the Post-traumatic Stress Disorder Checklist - Civilian Version (PCL-C). A hierarchical modeling was performed, applying the χ2 test and Standardized Waste Analysis. The association of the independent variables with SA was estimated through simple and adjusted Logistic Regression. Results: The prevalence of SA was 10.9%, and the frequency of PSTD was 16%. Women who had PTSD and those who did not have a religion showed higher risk for suicide (odds ratio - OR = 5.11, 95%CI 2.9 - 8.7, OR = 1.76, 95%CI 1.0 - 2.9 respectively). Conclusions: There was a higher risk of SA in women who had PTSD and low adherence to a religion. Thus, it was understood that coping with PTSD comes from preventing, treating and promoting greater knowledge about this disorder, in addition to aggregating and social protective effect promoted by religiosity, which can be a strategy for the reduction and prevention of SA.

PTSD in mental health outpatient settings: highly prevalent and under-recognized

Objectives: To estimate the current prevalence of posttraumatic stress disorder (PTSD) and the diagnosis rate of this disorder ascertained by psychiatrists in training. Methods: We interviewed 200 adults under treatment in a university mental health outpatient clinic. The PTSD diagnoses obtained using the Structured Clinical Interview for DSM-IV (SCID-IV) were compared with the patients' medical records. Results: Forty-one patients (20.5%) were diagnosed with current PTSD, but only one of them (2.4%) had previously received this diagnosis. This study confirms that although PTSD is highly prevalent among mental health outpatients, it is remarkably underdiagnosed in teaching hospitals. Conclusions: These findings suggest that psychiatrists in training may be failing to investigate traumatic events and their consequences and strongly indicate that trauma-related issues should be given more prominence in psychiatry curricula and psychiatrist training.

Moral Distress Assessment in the Nursing Team of a Hematology-Oncology Sector / Evaluación del Sufrimiento Moral en el equipo de enfermería de un sector de Hemato-Oncología / Avaliação do Sofrimento Moral na equipe de enfermagem de um setor de Hemato-Oncologia

ABSTRACT Objective: To identify the frequency and intensity of Moral Distress, and to analyze the associations between Moral Distress and sociodemographic and labor characteristics of the nursing team of a Hematology-Oncology. Method: A cross-sectional study was carried out with 46 nursing professionals from a Hematology-Oncology sector of a hospital institution in Rio Grande do Sul State, Brazil, through the application of the Moral Distress Scale - Brazilian version. In the data analysis, descriptive statistics and nonparametric association tests were used. Results: Mortal Distress intensity of 3.27 (SD= 1.79) and frequency of 1.72 (SD= 1.02) were found in this team. The Moral Distress of greater intensity and frequency were related to the denial of the role of Nursing as a patient's advocate and the disrespect to the patient's autonomy, respectively. Conclusion: It is suggested a greater space for discussion among professionals, multiprofessional team and managers, so that adequate conditions of action and communication are provided.

RESUMEN Objetivo: Identificar la frecuencia e intensidad del Sufrimiento Moral y analizar las asociaciones entre el Sufrimiento Moral y las características sociodemográficas y laborales del equipo de enfermería de un sector de Hemato-Oncología. Método: Estudio transversal, realizado con 46 profesionales de enfermería de un sector de Hemato-Oncología de una institución hospitalaria de Rio Grande do Sul, por medio de la aplicación de la escala Moral Distress Scale - Versión brasileña. Se empleó, en el análisis de los datos, estadística descriptiva y pruebas de asociación no paramétricas. Resultados: Se verificó una media de intensidad del Sufrimiento Moral de 3,27 (DP = 1,79) y la frecuencia de 1,72 (DP = 1,02) en ese equipo. El Sufrimiento Moral de mayor intensidad y frecuencia fueron referentes a la negación del papel de la enfermería como abogada del paciente y el irrespeto a la autonomía del paciente, respectivamente. Conclusión: Se sugiere mayor espacio de discusión entre profesionales, equipo multiprofesional y jefaturas, para que sean proporcionadas adecuadas condiciones de actuación y comunicación.

RESUMO Objetivo: Identificar a frequência e intensidade do Sofrimento Moral, e analisar as associações entre Sofrimento Moral e características sociodemográficas e laborais da equipe de enfermagem de um setor de Hemato-Oncologia. Método: Estudo transversal, realizado com 46 profissionais de enfermagem de um setor de Hemato-Oncologia de uma instituição hospitalar do Rio Grande do Sul, por meio da aplicação da escala Moral Distress Scale - Versão brasileira. Empregou-se, na análise dos dados, estatística descritiva e testes de associação não paramétricos. Resultados: Verificou-se média de intensidade do Sofrimento Moral de 3,27 (DP = 1,79) e frequência de 1,72 (DP = 1,02) nessa equipe. O Sofrimento Moral de maior intensidade e frequência foram referentes à negação do papel da Enfermagem como advogada do paciente e o desrespeito à autonomia do paciente, respectivamente. Conclusões: Sugere-se maior espaço de discussão entre profissionais, equipe multiprofissional e chefias, para que sejam proporcionadas adequadas condições de atuação e comunicação.

Moral sensitivity components identified among nurses from Intensive Care Units / Componentes de la sensibilidad moral identificados entre enfermeros de Unidades de Cuidado Intensivo / Componentes da sensibilidade moral identificados entre enfermeiros de Unidades de Terapia Intensiva

ABSTRACT Objective: to identify ethical problems from the components of moral sensitivity among nurses of Intensive Care Units. Method: qualitative, exploratory-descriptive study developed in a hospital in the South of Brazil with 19 nurses working in intensive care units through semi-structured interviews that were analyzed through discursive textual analysis. Results: ethical education, dialogue, relationships with other health team members, professional autonomy, knowledge, personal values, effective communication, leadership and patients' positive outcomes were identified as important components of nurses' moral sensitivity, and comprise the domains of moral consciousness, benevolent motivation, and spontaneous moral perception. Final considerations: the components of moral sensitivity identified in this study facilitate nurses' instrumentalization in the face of decision making and ethical problems in the intensive care setting.

RESUMEN Objetivo: identificar los problemas éticos a partir de los componentes de la sensibilidad moral entre enfermeros de Unidades de Cuidado Intensivo. Método: investigación cualitativa, del tipo exploratorio-descriptivo, desarrollada en institución hospitalaria del sur de Brasil con 19 enfermeros actuantes en unidades de cuidado intensivo, por medio de entrevistas semiestructuradas y analizadas mediante el análisis textual discursivo. Resultados: la educación ética, el diálogo, la relación con los demás miembros del equipo de salud, la autonomía profesional, el conocimiento, los valores personales, la comunicación efectiva, el liderazgo y los resultados positivos presentados por los pacientes fueron identificados como importantes componentes de la sensibilidad moral de los enfermeros, que comprende los dominios de la conciencia moral, motivación benévola y percepción moral espontánea. Consideraciones finales: los componentes de la sensibilidad moral identificados en este estudio facilitan la instrumentalización de los enfermeros delante de las tomas de decisión y los problemas éticos en el ambiente de cuidado intensivo.

RESUMO Objetivo: identificar, entre enfermeiros de Unidades de Terapia Intensiva, problemas éticos com base nos componentes da sensibilidade moral. Método: pesquisa qualitativa, do tipo exploratório-descritiva, desenvolvida em instituição hospitalar do Sul do Brasil, com 19 enfermeiros atuantes em unidades de terapia intensiva. Dados foram coletados por meio de entrevistas semiestruturadas e analisados mediante análise textual discursiva. Resultados: a educação ética, o diálogo, a relação com os demais membros da equipe de saúde, a autonomia profissional, o conhecimento, os valores pessoais, a comunicação efetiva, a liderança e os resultados positivos apresentados pelos pacientes constituem importantes componentes da sensibilidade moral dos enfermeiros, compreendendo os domínios da consciência moral, motivação benevolente e percepção moral espontânea. Considerações finais: os componentes da sensibilidade moral identificados neste estudo facilitam a instrumentalização dos enfermeiros diante das tomadas de decisões e de problemas éticos no ambiente de terapia intensiva.

Psychometric properties of the Posttraumatic Growth Inventory in a sample of Brazilian university students / Propriedades psicométricas do Inventário de Crescimento Pós-Traumático em uma amostra de estudantes universitários brasileiros

Abstract Objective: To examine psychometric properties of the Brazilian version of the Posttraumatic Growth Inventory (PTGI). Method: A total of 300 university students were evaluated though instruments that investigated trauma history, depression and posttraumatic symptoms, and personality traits through the Big Five model. Pearson's correlation was used to assess internal consistency, inter-item reliability and construct validity. Principal component analysis and confirmatory factor analysis were performed to investigate the factor structure of the PTGI. Results: Results confirmed the original five-factor structure. The results showed good internal consistency for the total scale (α = 0.91) and its subscales, ranging from α = 0.85 to α = 0.70. Also, evidence of construct and convergent validity was observed through correlations with posttraumatic and depression symptoms and personality measures. Conclusions: These preliminary results suggest that the Brazilian PTGI is reliable and showed adequate evidence of validity.

Resumo Objetivo: O objetivo deste estudo é examinar as propriedades psicométricas da versão brasileira do Inventário de Crescimento Pós-Traumático (Posttraumatic Growth Inventory - PTGI). Método: Foram avaliados 300 estudantes universitários através de instrumentos que investigaram histórico de trauma, sintomas pós-traumáticos e de depressão e traços de personalidade através do modelo Big Five. A correlação de Pearson foi utilizada para investigar consistência interna, confiabilidade entre itens e procedimentos de validade de construto. Análise de componentes principais e análise de fatores confirmatórios foram realizadas para investigar a estrutura fatorial do PTGI. Resultados: Os resultados confirmaram a estrutura original de cinco fatores. Os resultados mostraram boa consistência interna para a escala total (α = 0.91) e suas subescalas, variando de α = 0.85 a α = 0.70. Além disso, evidências de validade de construto e convergente foram observadas através de correlações com sintomas pós-traumáticos e de depressão e medidas de personalidade. Conclusões: Os resultados preliminares sugerem que o PTGI brasileiro é confiável e apresentou evidência de validade adequada.

Reappraising the dimensional structure of the PTSD Checklist: lessons from the DSM-IV-based PCL-C

Objective: The dimensional structure of posttraumatic stress disorder (PTSD) has been extensively debated, but the literature is still inconclusive and contains gaps that require attention. This article sheds light on hitherto unvisited methodological issues, reappraising several key models advanced for the DSM-IV-based civilian version of the PTSD Checklist (PCL-C) as to their configural and metric structures. Methods: The sample comprised 456 women, interviewed at 6-8 weeks postpartum, who attended a high-complexity facility in Rio de Janeiro, Brazil. Confirmatory factor analysis (CFA) and exploratory structural equation models (ESEM) were used to evaluate the dimensional structure of the PCL-C. Results: The original three-factor solution was rejected, along with the four-factor structures most widely endorsed in the literature (PTSD-dysphoria and PTSD-numbing models). Further exploration supported a model comprised of two factors (re-experience/avoidance and numbing/hyperarousal). Conclusion: These findings are at odds with the dimensional structure proposed in both DSM-IV and DSM-5. This also entails a different presumption regarding the latent structure of PTSD and how the PCL should be operationalized.

Brazilian Portuguese translation, cross-cultural adaptation, and apparent validation of the Trauma and Attachment Belief Scale / Tradução para o Português brasileiro, adaptação transcultural e validação aparente da Trauma and Attachment Belief Scale

Abstract Objective This article concerns the translation, cross-cultural adaptation, and apparent validation of the Trauma and Attachment Belief Scale (TABS), an instrument used to assess the psychological effects of traumatic life experiences and vicarious trauma. Methods This study involved literature review and evaluation of conceptual and item equivalences involving expert discussion groups focused on the existence and pertinence of the underlying theoretical concepts and corresponding items in a Brazilian context. Two translations and respective back-translations were performed during the evaluation of semantic equivalence, as well as an evaluation considering the referential and general equivalences between the original TABS and each version. Twenty-eight psychiatrists and psychologists completed a pretest. The final version was tested for reliability through the Cronbach's alpha and for verbal comprehension through the adapted verbal-numeric scale (ranging from 0 [I didn't understand anything] to 5 [I understood perfectly and I had no doubt]) in another 64 health professionals. Results The cross-cultural adaptation demonstrated high semantic equivalence for both the general (>95.0%) and the referential (>90.0%) meaning. The total Cronbach's alpha was 0.9173. All 84 items were maintained, and they favorably contributed to the internal consistency of the scale. The mean values of the adapted verbal-numeric scale for verbal comprehension obtained from health professionals varied from 4.2 to 4.9. Conclusion The Brazilian version of the TABS demonstrated high-quality conceptual, item, and semantic equivalence with the original instrument, as well as high acceptability, internal consistency, and verbal comprehension. The scale is now available for use.

Resumo Objetivo Este artigo se refere à tradução, adaptação transcultural e validação aparente da Trauma and Attachment Belief Scale (TABS), instrumento utilizado para avaliar os efeitos psicológicos das experiências de vida traumáticas e do trauma vicário. Métodos Este estudo envolveu uma revisão de literatura e avaliação da equivalência conceitual e dos itens, empregando grupos de discussão de especialistas, focando na existência e pertinência dos conceitos teóricos subjacentes e na correspondência dos itens dentro de um contexto brasileiro. Duas traduções e respectivas retrotraduções foram realizadas durante a avaliação da equivalência semântica, bem como foi feita uma avaliação considerando a equivalência referencial e geral entre a TABS original e cada versão. Vinte e oito psiquiatras e psicólogos completaram um pré-teste. A versão final foi testada para confiabilidade através do alfa de Cronbach e para compreensão verbal através de uma escala verbal-numérica adaptada [variando de 0 (Eu não entendi nada) a 5 (Eu entendi perfeitamente e não tive qualquer dúvida)] em outros 64 profissionais de saúde. Resultados A adaptação transcultural demonstrou alta equivalência semântica, tanto para o significado geral (>95,0%) quanto referencial (>90,0%). O alfa de Cronbach total foi de 0,9173. Todos os 84 itens foram mantidos e contribuíram favoravelmente para a consistência interna da escala. Os valores médios da escala verbal-numérica adaptada para a compreensão verbal obtidos dos profissionais de saúde variaram de 4,2 a 4,9. Conclusão A versão brasileira da TABS demonstrou equivalência conceitual, de itens e semântica de alta qualidade com o instrumento original, bem como elevada aceitabilidade, consistência interna e compreensão verbal. A escala está atualmente disponível para uso.

Post-Traumatic Stress Disorder and severe maternal morbidity: is there an association?

OBJECTIVE: To evaluate the occurrence of Post-Traumatic Stress Disorder among women experiencing a severe maternal morbidity event and associated factors in comparison with those without maternal morbidity. METHODS: In a retrospective cohort study, 803 women with or without severe maternal morbidity were evaluated at 6 months to 5 years postpartum for the presence of Post-Traumatic Stress Disorder. Interviews were conducted by telephone and electronic data was stored. Data analysis was carried out by using χ2, Fisher's Exact test, and logistic regression analysis. RESULTS: There was no significant change in the prevalence of Post-Traumatic Stress Disorder related to a previous severe maternal morbidity experience. There were also no differences in diagnostic criteria for severe maternal morbidity (hypertensive syndromes, hemorrhage, surgical intervention or intensive care unit admission required, among other management criteria). Low parity (2.5-fold risk) and increasing age were factors associated with Post-Traumatic Stress Disorder. CONCLUSIONS: A severe maternal morbidity episode is not associated with Post-Traumatic Stress Disorder symptoms within five years of the severe maternal morbidity event and birth. However, a more advanced maternal age and primiparity increased the risk of Post-Traumatic Stress Disorder. This does not imply that women who had experienced a severe maternal morbidity event did not suffer or need differentiated care.

Eventos potencialmente traumáticos y sintomatología postraumática en estudiantes de preparatoria / Potentially traumatic events and post-traumatic symptomatology in high school students

Resumen: Objetivo: Describir la ocurrencia de eventos potencialmente traumáticos (EPT) en estudiantes de preparatoria, medir la sintomatología postraumática subumbral en quienes aún sufren repercusiones de un EPT y asociar la sintomatología con variables sociodemográficas y características del EPT. Material y métodos: Estudio transversal analítico realizado en un muestra por conveniencia de 1000 estudiantes de tres preparatorias del Estado de México. Se aplicó la Escala para Estrés Postraumático en Universitarios Mexicanos. Se evaluó la presencia de síntomas y su frecuencia; la asociación con variables explicativas se realizó con modelos de regresión logística y cuantílica, respectivamente. Resultados: 80% reportó un EPT. De éstos, 79% aún sufría repercusiones actuales y casi la mitad de ellos presentó sintomatología. El sexo, número de eventos y características del EPT (cambios percibidos y gravedad) se encontraron asociados. Conclusiones: Los resultados sugieren intervenir tempranamente para disminuir el riesgo de desarrollar un trastorno.

Abstract: Objective: Describe the occurrence of potentially traumatic events (PTE) in high-school students, measure subthreshold post-traumatic symptomatology in those who still experience PTE repercussions and associate the symptomatology with sociodemographic and PTE characteristics. Materials and methods: Analytic transversal study carried out in a convenience sample of one thousand students from three high schools in the State of Mexico. The Scale for Post Traumatic Stress in University Students was applied. The presence of symptoms, their frequency and their association with explanatory variables was assessed by means of logistic and quantile logistic regression models, respectively. Results: 80% reported PTE. Of this, 79% still experienced current repercussions and almost a half presented symptomatology. Gender, number of events, and PTE characteristics (perceived and grave symptoms) were associated. Conclusions: Results suggest to intervene early to reduce the risk of developing a disorder.

Reliability and Validity of the Korean Version of the Lifetime Stressor Checklist-Revised in Psychiatric Outpatients with Anxiety or Depressive Disorders

PURPOSE: Traumatic events and adverse stressful experiences are major etiological factors in a wide variety of physical and mental disorders. Developing psychological instruments that can be easily administered and that have good psychometric properties have become an integral part for research and practice. This study investigated the reliability and validity of the Korean version of the Lifetime Stressor Checklist-Revised (LSC-R) in a consecutive sample of psychiatric outpatients. The LSC-R is a 30-item self-reporting questionnaire examining lifetime traumatic and non-traumatic stressors. MATERIALS AND METHODS: A final sample of 258 outpatients with anxiety or depressive disorders was recruited at the psychiatric department of a university-affiliated teaching hospital. Self-reported data included the Life Events Checklist (LEC), the Zung Self-Rating Depression and Anxiety Scales, and the Impact of Events Scale-Revised, in addition to the LSC-R. A convenience sample of 50 college students completed the LSC-R on two occasions separated by a three week-interval for test-retest reliability. RESULTS: Mean kappa for temporal stability was high (κ=0.651) and Cronbach alpha was moderate (α=0.724). Convergent validity was excellent with corresponding items on the LEC. Concurrent validity was good for symptoms of post-traumatic stress disorder, depression, and anxiety. An exploratory factor analysis revealed that 11 factors explained 64.3 % of the total variance. CONCLUSION: This study demonstrated good psychometric properties of the Korean version of the LSC-R, further supporting its use in clinical research and practice with a Korean speaking population.

Cross-cultural adaptation of the Posttraumatic Stress Disorder Checklist 5 (PCL-5) and Life Events Checklist 5 (LEC-5) for the Brazilian context / Adaptação transcultural da Posttraumatic Stress Disorder Checklist 5 (PCL-5) e da Life Events Checklist 5 (LEC-5) para o contexto brasileiro

Abstract Objective: To describe the process of cross-cultural adaptation of the Posttraumatic Stress Disorder Checklist 5 (PCL-5) and the Life Events Checklist 5 (LEC-5) for the Brazilian sociolinguistic context. Method: The adaptation process sought to establish conceptual, semantic, and operational equivalence between the original items of the questionnaire and their translated versions, following standardized protocols. Initially, two researchers translated the original version of the scale into Brazilian Portuguese. Next, a native English speaker performed the back-translation. Quantitative and qualitative criteria were used to evaluate the intelligibility of items. Five specialists compared the original and translated versions and assessed the degree of equivalence between them in terms of semantic, idiomatic, cultural and conceptual aspects. The degree of agreement between the specialists was measured using the content validity coefficient (CVC). Finally, 28 volunteers from the target population were interviewed in order to assess their level of comprehension of the items. Results: CVCs for items from both scales were satisfactory for all criteria. The mean comprehension scores were above the cutoff point established. Overall, the results showed that the adapted versions' items had adequate rates of equivalence in terms of concepts and semantics. Conclusions: The translation and adaptation processes were successful for both scales, resulting in versions that are not only equivalent to the originals, but are also intelligible for the population at large.

Resumo Objetivo: Descrever o processo de adaptação transcultural das escalas Posttraumatic Stress Disorder Checklist 5 (PCL-5) e Life Events Checklist 5 (LEC-5) para o contexto sociolinguístico brasileiro. Método: A adaptação das escalas buscou estabelecer a equivalência conceitual, semântica e operacional entre os itens originais das escalas e suas versões traduzidas, por meio de um protocolo padronizado. Inicialmente, dois pesquisadores traduziram as versões originais para o português. Na sequência, um falante nativo de língua inglesa realizou a tradução reversa. A inteligibilidade dos itens foi analisada por meio de critérios quantitativos e qualitativos. Cinco especialistas compararam as versões originais e traduzidas e avaliaram o grau de equivalência entre elas nos quesitos semântico, idiomático, cultural e conceitual. O grau de concordância entre os especialistas foi medido pelo coeficiente de validade de conteúdo (CVC). Por fim, 28 voluntários da população-alvo foram entrevistados para verificar o nível de compreensão dos itens. Resultados: Os itens das duas escalas apresentaram CVCs satisfatórios em todos os quesitos. Os escores médios referentes ao grau de compreensão dos itens foram acima do ponto de corte estabelecido. No conjunto, os resultados indicaram índices adequados de equivalência conceitual e semântica para os itens das versões adaptadas. Conclusão: O processo de tradução e adaptação foi bem-sucedido para as duas escalas, resultando em versões não apenas equivalentes às originais, mas também compreensíveis para a população-alvo em geral.

Escala de Gravedad de Síntomas Revisada (EGS-R) del trastorno de estrés postraumático según el DSM-5: propiedades psicométricas / Posttraumatic stress disorder symptom Severity Scale-Revised (EGS-R) according to DSM-5 criteria: psychometric properties

La escala de gravedad de síntomas Revisada del trastorno de estrés postraumático (TEPT) es una entrevista estructurada que consta de 21 ítems, basada en los criterios diagnósticos del DSM-5, y sirve para evaluar la gravedad de los síntomas de este cuadro clínico. En este trabajo se describen las propiedades psicométricas de este instrumento. la muestra contó con 526 víctimas de agresiones sexuales o de violencia familiar y con una muestra normativa de 193 participantes. El instrumento global mostró una alta consistencia interna (α = .91), así como una buena validez discriminante (g = 1.27) y convergente (rbp = .78 con el diagnóstico). Los resultados del análisis factorial confirmatorio apoyan los cuatro núcleos de síntomas del DSM-5. Un punto de corte de 20, con una eficacia diagnóstica del 82.48%, es apropiada para discriminar a las víctimas con un TEPT. Esta escala resulta útil para planificar el tratamiento y las investigaciones clínicas.

the posttraumatic stress Disorder (ptsD) symptom severity scale-revised is a 21-item structured interview based in DSM-5 criteria and intended to assess the severity of the symptoms of this mental disorder. This paper describes the psychometric properties of this instrument for assessing PTSD. The sample consisted of 526 patients who had been victims of sexual aggression or family violence and 193 people from the general population. The global instrument showed high internal consistency (α = .91), as well as good discriminant (g = 1.27) and concurrent validity (rpb = .78 with diagnosis of PTSD). The results of confirmatory factor analysis are presented and give support to the DSM-5 four symptom clusters. a cut-off point of 20, with a diagnostic efficacy of 82.48%, is appropriate to discriminate the victims with PTSD. The interview appears to be a sound instrument and should prove useful for treatment planning and research.

Transtorno do estresse pós-traumático após o parto e suas relações com violência sexual na infância e violência entre parceiros íntimos na gestação / Posttraumatic stress disorder after childbirth and its relationships with childhood sexual abuse and intimate partner violence in pregnancy

O objetivo principal desta Tese foi investigar as relações entre a violência sexual na infância, a violência entre parceiros íntimos (VPI) durante a gestação e a ocorrência de transtorno de estresse pós-traumático (TEPT) após o parto. Adicionalmente, avaliou-se a estrutura dimensional do instrumento Post-Traumatic Stress Disorder Checklist ­ Civilian Version (PCL-C), utilizado para identificar os sintomas de TEPT na população de estudo. Os dados utilizados nesta pesquisa originaram-se de um estudo transversal realizado no Instituto Fernandes Figueira, entre fevereiro e julho de 2011. A população de estudo foi composta por mulheres que tiveram o parto na instituição. As entrevistas ocorreram entre 6 e 8 semanas após o parto, durante a consulta pós-natal de rotina. A amostra incluiu 456 mulheres (88% das elegíveis). Os instrumentos Trauma History Questionnaire (THQ) e Revised Conflict Tatics Scales (CTS2) foram utilizados para avaliar a ocorrência de violência sexual na infância e VPI na gestação, respectivamente. O primeiro artigo apresenta a avaliação da estrutura dimensional da PCL-C. Os resultados sugeriram a existência de dois fatores específicos formados por um fator de ordem superior, além de importantes correlações residuais ocorrendo entre os itens 6 e 7 e entre os itens 16 e 17. Estes achados apontam uma estrutura diferente dos modelos de três e quatro fatores propostos na quarta e na quinta edição, respectivamente, do Diagnostic and Statistical Manual of Mental Disorders (DSM). O segundo artigo mostra os resultados da análise de caminhos realizada para avaliar as relações entre a violência sexual na infância, a VPI durante a gestação e o TEPT após o parto. Os resultados indicaram que a violência sexual na infância está associada aos sintomas de TEPT no pós-parto tanto de forma direta quanto indireta, por meio da VPI, de outros traumas e psicopatologias e da experiência de medo do parto. Tanto a VPI psicológica quanto a VPI física mostraram-se diretamente relacionadas à ocorrência de TEPT. A violência psicológica também se associou de forma indireta ao TEPT, por meio da violência física e da experiência de medo do parto. Espera-se que a divulgação dos achados desta Tese contribua para um refinamento dos critérios diagnósticos do TEPT e para que o enfrentamento da violência contra a mulher e dos agravos à saúde mental perinatal ganhe mais espaço no campo da saúde pública, promovendo, por extensão, uma melhoria na atenção à saúde