Development of the Parent-to-Infant Bonding Scale: Validation in Swedish Mothers and Fathers in Community and Clinical Contexts.

Valid measurement instruments are needed to investigate the impact of parental bonding on child health development. The aim was to develop and validate a self-report questionnaire, the Parent-to-Infant Bonding Scale (PIBS) to measure bonding in both mothers and fathers. Internal consistency and construct validity were analysed using data from Swedish parents from both clinical (N = 182), and community (N = 122) population samples. Overall, good or acceptable internal consistency of the PIBS appeared. Convergent validity (against the Postpartum Bonding Questionnaire, analysed in the clinical sample) and discriminant validity (against the mental health constructs of depressive symptoms and anxiety) were demonstrated. The results support the PIBS as a measure of maternal and paternal bonding in community and clinical populations. Assessments of criterion validity in these populations are desirable. The similarities in PIBS measurement properties between the parent groups suggest its usefulness for comparisons between mothers and fathers, and for future investigations of unique and interactive impacts of maternal and paternal bonding on child outcomes using community and clinical cohorts.

Prenatal expectations and other psycho-social factors as risk factors of postnatal bonding disturbance.

The mother's bond to her baby starts to develop during pregnancy, and it is related to the baby's attachment. We study how the mother's prenatal expectations of her unborn baby, the mother's adult relationships, and postnatal psycho-social factors (stress, depression, and anxiety) are related to the risk of bonding disturbance. The study comprised 1398 mothers and their unborn babies assessed both during pregnancy and when the babies were 3 months old (47.7% girls). The mother's risk of bonding disturbance was investigated using Brockington's Postpartum Bonding Questionnaire. According to the results, 71 (5.1%) of all the mothers in the study had a risk of a bonding disturbance. In a final adjusted logistic regression model, the most important risk factors were the mother's inability to form positive expectations about relationships with the baby during the third trimester of pregnancy (AOR = 7.78, p ≤ .001), maternal postnatal stress (AOR = 4.95, p ≤ .001) and maternal postnatal depression (AOR = 3.46, p ≤ .01). The results challenge healthcare professionals to screen pregnant mothers to identify at-risk groups for post-partum bonding disturbances. Intervention programs to prevent the development of bonding disturbances, and thus their possible serious consequences for children's development, should be considered.

La unión afectiva entre la madre y su bebé comienza a desarrollarse durante el embarazo y está relacionado a la afectividad del bebé. Estudiamos cómo las expectativas prenatales que la madre tenía de su bebé aún no nacido, las relaciones adultas de la madre, así como los factores sicosociales (estrés, depresión y ansiedad) están relacionados con la alteración de la unión afectiva. El estudio incluyó a 1,398 madres y sus no nacidos bebés evaluados ambos durante el embarazo y cuando los bebés tenían tres meses de nacidos (47.7% niñas). El riesgo de la madre de alteraciones en la unión afectiva fue investigado usando el Cuestionario Brockington sobre la Unión Afectiva Posterior al Parto. De acuerdo con los resultados, 71 (5.1%) de todas las madres en el estudio presentaban un riesgo de alteración de la unión afectiva. En un modelo final de regresión logístico ajustado, los más importantes factores de riesgo fueron la inhabilidad de la madre de formar expectativas positivas acerca de las relaciones con el bebé durante el tercer trimestre del embarazo (AOR = 7.78, p < .001), el estrés materno postnatal (AOR = 4.95, p < .001) y la depresión materna postnatal (AOR = 3.46, p < .01). Los resultados presentan un reto a los profesionales del cuidado de la salud para examinar a mujeres embarazadas con el fin de identificar grupos bajo riesgo de alteraciones en la unión afectiva posterior al parto. Se deben considerar programas de intervención para prevenir el desarrollo de alteraciones en la unión afectiva y, por tanto, posibles serias consecuencias para el desarrollo de los niños.

Le lien de la mère avec son bébé commence à se développer durant la grossesse, et est lié à l'attachement du bébé. Nous étudions la manière dont les attentes prénatales que la mère se fait de son bébé à naître, les relations adultes de la mère, et les facteurs postnatals psycho-sociaux (stress, dépression, anxiété) sont liés au risque de trouble du lien. L'étude a compris 1398 mères et leurs bébé à naître évalués à la fois durant la grossesse et quand les bébés avaient trois mois (47,7% de filles). Le risque de trouble du lien de la mère a fait l'objet de l'étude, au moyen du Questionnaire du Lien Postpartum de Brockington. Selon les résultats, 71 (soit 5,1%) de toutes les mères de l'étude avaient un risque de trouble du lien. Dans un modèle de régression logistique ajusté final les facteurs de risque les plus importants étaient l'incapacité de la mère à former des attentes positives sur les relations avec le bébé durant le troisième trimestre de la grossesse (AOR - 7,78, p ≤,001), le stress postnatal maternel (AOR = 4,95, p ≤,001) et la dépression postnatale maternelle (AOR = 3,46, p ≤,01). Les résultats défient les professionnels de la santé de dépister les mères enceintes afin d'identifier les groupes à risque de troubles du lien postpartum. Des programmes d'intervention destinés à prévenir le développement de troubles du lien ainsi que leurs conséquences sévères pour le développement des enfants devraient être considérés.

Severity and Features of Epistaxis in Children with a Mucocutaneous Bleeding Disorder.

OBJECTIVE: To use standardized bleeding questionnaires to compare the severity and patterns of epistaxis in children with a mucocutaneous bleeding disorder and control children. STUDY DESIGN: The epistaxis sections of the Pediatric Bleeding Questionnaire (PBQ) administered to pediatric patients with von Willebrand disease or a platelet function disorder and healthy control children were reviewed. Scores and features of epistaxis (frequency, duration, onset, site, seasonal correlation, and need for medical/surgical intervention) were recorded. A PBQ epistaxis score ≥2 was defined as clinically significant. The Katsanis epistaxis scoring system was administered to eligible patients, ie, with ≥5 episodes of epistaxis per year. RESULTS: PBQ epistaxis scores were obtained for 66 patients, median age 12 years (range 0.6-18.3 years), and 56 control children. The median PBQ epistaxis score in patients was 2 vs 0 in control children (P <.0001). All of the features of epistaxis, except spontaneous onset, occurred in a significantly greater proportion of patients than control children with epistaxis. A total of 50% of the patients were graded as having severe epistaxis by the Katsanis epistaxis scoring system, and 30 of these (91%) had a clinically significant PBQ epistaxis score. CONCLUSION: Standardized bleeding questionnaires are useful in the assessment of epistaxis severity and pattern and may help to distinguish children with and without a mucocutaneous bleeding disorder.

MRI-based pedicle bone quality score: correlation to quantitative computed tomography bone mineral density and its role in quantitative assessment of osteoporosis.

BACKGROUND CONTEXT: Bone quality in the pedicle region generally determines screw pullout strength, insertion torque, and vertebral body loading characteristics. Dual-energy X-ray absorptiometry (DEXA), as the gold standard for evaluating bone mineral density (BMD), cannot measure the BMD of specific parts, such as pedicle, and DEXA is limited in many ways. Recent studies have shown a correlation between the magnetic resonance imaging (MRI)-based vertebral bone quality (VBQ) score and BMD measured using DEXA or quantitative computed tomography (QCT). However, no studies have been reported on the MRI-based pedicle bone quality (PBQ) score. Moreover, few studies have investigated the relationship between MRI-based PBQ and osteoporosis. PURPOSE: To create a new site-specific MRI-based PBQ assessment method and assess its diagnostic capacity in patients with normal BMD and osteopenia/osteoporosis. STUDY DESIGN/SETTING: A retrospective study. PATIENT SAMPLE: A total of 156 patients underwent lumbar fusion surgery for chronic low back pain at our hospital between 2021 and 2022, with lumbar QCT and T1-weighted MRI performed before surgery. OUTCOME MEASURES: Correlation of the PBQ score with QCT BMD, and the association between the PBQ score and presence of osteopenia/osteoporosis. METHODS: BMD of the lumbar was calculated as the mean BMD of the L1 and L2 vertebral bodies on the basis of asynchronous QCT measurements. The PBQ score, which is the average of the bone quality values of both pedicles on the basis of site-specific T1-weighted sagittal MRI images, was calculated by dividing the median signal intensity of the L1-L4 pedicles by the signal intensity of the cerebrospinal fluid at the L3 level. The interobserver reliability of the PBQ score was assessed using the intraclass correlation coefficient (ICC). A receiver operating characteristic curve was drawn, and the area under the curve (AUC) was calculated to assess the predictive performance of PBQ for osteoporosis. The PBQ score was compared with QCT BMD, as the gold standard, using Pearson correlation analysis. RESULTS: In total, 156 patients participated in this study, including 51 in the Normal BMD group and 105 in the osteopenia/osteoporosis group. The PBQ score in the osteopenia/osteoporosis group was significantly higher than that in the normal BMD group (3.19±0.55 vs. 2.84±0.51, p<.001). The VBQ and PBQ scores were calculated by 2 authors and were in good agreement (intraclass correlation coefficient=0.949 and 0.929, respectively). Pearson's test showed a significant negative correlation between PBQ and QCT BMD (r=-0.4887, p<.001). The optimal cutoff PBQ score to differentiate patients with osteopenia/osteoporosis from those with normal BMD was 3.160, with a sensitivity of 66.7%, specificity of 72.5%, and AUC of 0.776. The PBQ score correlated more strongly with QCT BMD (r=-0.4887) than VBQ (r=-0.4078). CONCLUSIONS: In this study, we propose a novel, MRI-based pedicle-specific bone quality score. This is the first study to investigate the relationship between the PBQ score and QCT BMD. The PBQ score showed diagnostic utility, differentiating between patients with osteopenia/osteoporosis and those with normal BMD (AUC=0.776), and the PBQ score correlated more strongly with QCT BMD than VBQ.

Maternal postpartum bonding impairment and increased substance use to cope with pandemic-related stress.

Substance use rates, particularly among women, increased substantially during the COVID-19 pandemic. Psychological and economic risks disproportionately experienced by women were associated with increase in substance use patterns during the pandemic. Using substances (i.e., tobacco, alcohol, cannabis) to cope with stress is well-documented; what is less known are protective factors that were associated with less substance use during the pandemic. We examined whether mothers of young children (N = 96) who reported postpartum bonding impairment before the start of the pandemic reported greater substance use during the pandemic as a means to cope. Results from linear regression analyses found that mothers who reported higher levels of pre-pandemic mother-infant bonding impairments reported greater use of alcohol and other substances as a means to cope with pandemic stressors. These findings suggest that social connections might be a strategy to reduce substance use as a maladaptive coping behavior, especially during widespread crises such as the recent pandemic or for mothers of young children. In particular, promoting postpartum bonding through interventions might help to reduce substance use among new mothers.

The Biosafety Evaluation for Crustaceans: A Novel Molluscicide PBQ Using against Oncomelania hupensis, the Intermediate Host of Schistosoma japonica.

A new formulation (suspension concentrate, SC) of PBQ [1-(4-chlorophenyl)-3-(pyridin-3-yl) urea] was used in water network schistosomiasis-endemic areas to test its molluscicidal efficacy and the acute toxicity to crustaceans. PBQ (20% SC), 26% metaldehyde, and niclosamide suspension concentrate [MNSC (26% SC)] were used both in ditch and field experiments for the molluscicidal efficacy comparison. Acute toxicity tests of two molluscicides were conducted using Neocaridina denticulate and Eriocheir sinensis. Both in the field and ditch experiments, PBQ exhibited comparable molluscicidal efficacy with MNSC. At doses of 0.50 g/m3 and 0.50 g/m2, the snail mortalities were more than 90% three days after PBQ (20% SC) application. Compared with previous tests, PBQ (20% SC) exhibited higher molluscicidal activity than PBQ (25% wettable powder, 25% WP) used in Jiangling and showed similar mollucicidal activity to PBQ (25% WP) used in Dali and Poyang Lake. The 96 h LC50 value of MNSC against Eriocheir sinensis was 283.84 mg a.i./L. At the concentration of PBQ (20% SC) 1000 mg a.i./L, all Eriocheir sinensis were alive. The 96 h LC50 values of PBQ and MNSC against Neocaridina denticulate were 17.67 and 14.05 mg a.i./L, respectively. In conclusion, PBQ (20% SC) had a comparable molluscicidal efficacy with MNSC (26% SC) and PBQ (25% WP). Furthermore, it showed lower toxicity to the crustacean species, better solubility, no floating dust, and convenience for carriage. PBQ (20% SC) was suitable for controlling snails in the water network schistosomiasis-endemic areas.

Effect of Infant Massage on Salivary Oxytocin Level of Mothers and Infants with Normal and Disordered Bonding.

Maternal-infant bonding is an affective maternal-driven process that occurs primarily to her infant. Prophylactic interventions or treatment of disordered bonding include infant massage. Evidence suggests that oxytocin plays an important role in facilitation of mother-infant bonding. Main objective is to assess the effect of infant massage on salivary oxytocin level of mothers and their infant during postpartum period. And to assess the difference of oxytocin level in normal and disordered maternal-infant bonding. This study is a quasi-experimental study, carried out on 37 pairs of mothers and their infants from second to sixth month postpartum, attending Basateen Gharb primary health care center (PHC) in Albasateen district, Cairo, Egypt. Postpartum Bonding Questionnaire (PBQ) was used to differentiate between mothers with normal and disordered bonding. Pre and post massage salivary samples were taken from mothers and their infants. Tappan's technique of infant massage was used. Results showed that 48.6% (N = 18) of mothers had disordered maternal infant bonding. Mothers and infants with normal bonding showed a positive relationship with their salivary oxytocin level post massage. On the other hand, mothers and infants with disordered bonding showed no change in their salivary oxytocin level post massage. Salivary oxytocin level in male infants has decreased post massage, while oxytocin level in female infants has increased post massage in mothers with normal bonding. We concluded that infant massage increases salivary oxytocin level in mothers and infants with normal bonding and it has no effect on salivary oxytocin level of mothers and infants with disordered bonding.

Investigating the interaction between pedestrian behaviors and crashes through validation of a pedestrian behavior questionnaire (PBQ).

Developing countries have a high frequency of traffic incidents involving pedestrians. Given the vulnerability of pedestrians, many of these incidents result in serious or fatal injuries. The present study aimed to validate a pedestrian behavior questionnaire in Iran to investigate Persian pedestrian behaviors and to understand the relationship of these behaviors with demographic and mobility variables. A total of 520 participants (292 males and 228 females) completed a survey containing behavioral items and demographic questions. A principal component analysis showed that the data best fit in four factors of transgressions (including violations and errors), lapses, aggressive behaviors, and positive behaviors. In this study, the association of behavioral dimensions with crash history as a driver, crash history as a pedestrian, the severity of an experienced pedestrian-related crash, and the participant's relative's crash history as a pedestrian were also investigated. The present study confirms that PBQ is a useful tool with adequate reliability for investigating Persian pedestrians' safety-related behaviors. These findings revealed the need for intervention programs and improving infrastructures through the evaluation of pedestrian behaviors, which may lead to decreasing pedestrian-related crash frequency.

Photochemical reactions between 1,4-benzoquinone and O2•.

The superoxide anion radical (O2•-) is one of the most predominant reactive oxygen species (ROS), which is also involved in diverse chemical and biological processes. In this study, O2•- was generated by irradiating riboflavin in an O2-saturated solution using an ultraviolet lamp (λem = 365 nm) as the light source. The photochemical reduction of 1,4-benzoquinone (p-BQ) by O2•- was explored by 355-nm laser flash photolysis (LFP) and 365-nm UV light steady irradiation. The results showed that the photodecomposition efficiency of p-BQ was influenced by the riboflavin concentration, p-BQ initial concentration, and pH values. The superoxide anion radical originating from riboflavin photolysis served as a reductant to react with p-BQ, forming reduced BQ radicals (BQ•-) with a second-order rate constant of 1.1 × 109 L mol-1 s-1. The main product of the photochemical reaction between p-BQ and O2•- was hydroquinone (H2Q). The present work suggests that the reaction with O2•- is a potential transformation pathway of 1, 4-benzoquinone in atmospheric aqueous environments.

Translation, validation and factor structure of the Tamil version of the Postpartum Bonding Questionnaire (PBQ-T).

BACKGROUND: The Postpartum Bonding Questionnaire was developed in English for the purpose of screening for bonding disorders among postpartum mothers. There was a felt need for a Tamil translation of the self-rated instrument. METHODS: The Postpartum Bonding Questionnaire was translated into Tamil (PBQ-T). Two hundred and fifty mother-infant dyads were administered the PBQ-T along with the Stafford Interview. The Stafford Interview was studied by two independent psychiatrists to arrive at a diagnosis of bonding disorders in the mothers. The Edinburgh Postnatal Depression Scale (EPDS) and Bangalore Maternal Behaviour Scale (BMBS) were used for rating depressive symptoms and caregiver reported behaviour of the mother towards the infant. We also did a factor analysis to find the factor structure of the PBQ-T. RESULTS: A 19-item PBQ-T that has five factors grouped into three subscales. The five factors are General Bonding (F1A), Frustration (F1B), Anxiety (F2), Feeling trapped (F3A) and Aggression/ Rejection dimensions (F3B) loading onto three subscales 1, 2 and 3. Total PBQ-T scores were best used to detect 'any disorder of bonding' (cut-off 5/6). Subscale 1 (cut-off 2/3) was useful in detection of mild disorders of bonding, subscale 2 (cut-off 2/3) for infant-focused anxiety and subscale 3 (cut-off 0/1) for Anger/ Rejection. Mothers with bonding disorders had greater psychological distress. Caregiver report of mother's behaviour (BMBS) could detect anxiety and anger/ rejection but not the lack of emotional bond. CONCLUSION: A 19-item Tamil version of the PBQ is useful in screening for disorders of mother-infant bonding among healthy postpartum mothers.

Pathobiology of cigarette smoke-induced invasive cancer of the renal pelvis and its prevention by vitamin C.

Urothelial cancer of the renal pelvis (CRP) is predominantly associated with cigarette smoking. However, the molecular pathogenesis of initiation and progression of cigarette smoke (CS)-induced CRP is unknown. Majority of CRP is high grade and high stage at presentation and has a high recurrence rate even after surgery. Earlier we reported that prolonged treatment (24 weeks) of a guinea pig model with p-benzoquinone (p-BQ), a product of CS in vivo, produced carcinoma in situ in the renal pelvis, a noninvasive cancer. Since CS is known to induce invasive cancer, we investigated the effect of CS exposure to the guinea pigs. We observed that CS exposure for a short period (18 weeks) produced invasive tumor (pT1). pT1 was confirmed by immunohistochemistry showing increased immunoexpression of nuclear p53 indicating p53 mutation, aberrant CK20, increased Ki-67 and uniformly negative labeling of CD44. As observed earlier with p-BQ treatment, the initial events of CS exposure were oxidative damage and apoptosis that was followed by persistent signaling through EGFR and MAP kinase pathway. CS exposure also caused hyperphosphorylation of pRb, activation of cyclin E and cell cycle deregulation leading to infiltration of epithelial cells in lamina propria of the renal pelvis resulting in pT1 tumor. Oral supplementation of vitamin C (30 mg/kg guinea pig/day) inhibited oxidative damage and apoptosis and holistically prevented the tumor formation. We consider that our preclinical findings on the intake of adequate vitamin C, along with intense advice for cessation of smoking, will be helpful for the prevention of CS-induced CRP in smokers.

Evaluating pedestrian behavior at crosswalks: Validation of a pedestrian behavior questionnaire for the U.S. population.

The aim of this study was to develop and validate a self-reporting Pedestrian Behavior Questionnaire (PBQ) for the U.S. population to measure frequency of risky behaviors among pedestrians. The PBQ includes 50 survey items that allow respondents to rate the frequency with which they engage in different types of road-using behaviors as pedestrians. The validation study was conducted on 425 participants (228 males and 197 females) between the ages of 18 and 71. Confirmatory factor analysis differentiated pedestrian behaviors into five factor categories: violations, errors, lapses, aggressive behaviors, and positive behaviors. A short version of the PBQ with 20 items was also created by selecting four items with high factor loadings from each of the five factor categories. Regression analyses investigated associations with scenario-based survey behavioral responses to validate the five-factor PBQ subscale scores and composite score. For both long and short versions, each of these five individual factor scales were found to be reliable (0.7

p-Benzoquinone initiates non-invasive urothelial cancer through aberrant tyrosine phosphorylation of EGFR, MAP kinase activation and cell cycle deregulation: Prevention by vitamin C.

According to WHO classification system, non-invasive urothelial carcinoma represents urothelial carcinoma in situ (CIS) and dysplasia. Dysplastic urothelium often progresses to CIS that further advances to urothelial carcinoma (UC). The strongest risk factor for UC is cigarette smoking. However, the pathogenesis of cigarette smoke (CS)-induced UC is poorly understood. Earlier we had shown that p-benzoquinone (p-BQ), a major toxic quinone derived from p-benzosemiquinone of CS in vivo, is a causative factor for various CS-induced diseases. Here, using a guinea pig model we showed that prolonged treatment with p-BQ led to non-invasive UC, specifically carcinoma in situ (CIS) of the renal pelvis and dysplasia in the ureter and bladder. The mechanisms of carcinogenesis were p-BQ-induced oxidative damage and apoptosis that were later suppressed and followed by activation of epidermal growth factor receptor, aberrant phosphorylation of intracellular tyrosine residues, activation of MAP kinase pathway and persistent growth signaling. This was accompanied by deregulation of cell cycle as shown by marked decrease in the expression of p21waf1/cip1 and cyclin D1 proteins as well as hyperphosphorylation of pRb. UC has been characterised by histopathology and immunohistochemistry showing aberrant CK20, increased Ki-67, and marked p53 nuclear immunopositivity with uniformly negative labelling of CD44. Oral supplementation of vitamin C (30 mg/kg body weight/day) prevented CIS of the renal pelvis and dysplasia in the ureter and bladder. Since majority of non-invasive UC progresses to invasive cancer with increased risk of mortality, our preclinical study might help to devise effective strategies for early intervention of the disease.

Características psicométricas do teste pictórico de perfis cognitivos / Psychometric characteristics of the pictorial test of cognitive profiles

Este estudo avaliou as propriedades psicométricas do Teste Pictórico dos Perfis Cognitivos (TPPC) através da consistência interna e da validade convergente do TPPC com a versão brasileira do Personality Belief Questionnaire – Short Form (PBQ-SF). O TPPC, assim como o PBQ-SF, foi elaborado como um instrumento clínico e de pesquisa, com nove subescalas, para avaliar perfis de personalidade. Uma amostra de 86 alunos universitários respondeu à versão brasileira do PBQ-SF e o do TPPC. Os resultados apresentaram níveis satisfatórios para as estimativas de confiabilidade (alpha de Cronbach) do teste TPPC (alpha = 0,93). De um modo geral, os achados demonstram a validade convergente para o TPPC, sugerindo que ele também seja um instrumento prático para avaliar perfis cognitivos de personalidade, assim como o PBQ-SF.

This study evaluated the psychometric properties of the Pictorial Test of Cognitive Profiles (TPPC) through the internal consistency and convergent validity of the TPPC with the Brazilian version of the Personality Belief Questionnaire – Short Form (PBQ-SF). The TPPC as well as the PBQ-SF was designed as a clinical and research tool, with nine subscales, to assess personality profiles. A sample of 86 college students responded to the Brazilian version of the PBQ-SF and the TPPC. The results showed satisfactory levels for estimating the reliability (Cronbach’s alpha) of the TPPC test (alpha = .93). Overall, the findings demonstrate the convergent validity for the TPPC, suggesting that it is also a practical tool to evaluate cognitive profiles of personality as well as the PBQ-SF.

Características psicométricas do questionário de crenças dos transtornos de personalidade: forma reduzida / Psychometric characteristics of the personality belief questionnaire: short form

Este estudo avaliou as propriedades psicométricas da versão brasileira do Personality Belief Questionnaire - Short form (PBQ-SF). Uma amostra de 700 alunos universitários respondeu à versão brasileira do PBQ -SF. Os resultados apresentaram níveis satisfatórios para as estimativas de confiabilidade (alpha de Crombach) das escalas do PBQ-SF, apontando para uma significativa associação entre as crenças de cada uma das escalas. Os resultados da análise fatorial do PBQ-SF apresentaram um modelo muito aproximado de sua estrutura original, observando-se mais similaridades do que contradições entre eles. De um modo geral, os achados oferecem sustentação para a existência de validade fatorial para a versão brasileira do PBQ-SF, sugerindo que ele é um instrumento prático para a medida das crenças disfuncionais relacionadas aos transtornos da personalidade.

This study evaluated the psychometric properties of the Brazilian version of the Personality Belief Questionnaire - Short Form (PBQ-SF). A sample of 700 college students answered to the Brazilian version of the PBQ-SF. The results showed good estimates of reliability (Cronbach's alpha) of the PBQ-SF scales, indicating a significant association between the beliefs of each of the scales. The results of factor analysis of the PBQ-SF were similar to its original version. Overall, the findings provide support for the existence of factorial validity for the Brazilian version of the PBQ-SF, suggesting that it is a practical tool for the measurement of dysfunctional beliefs related to personality disorders.