A study on the construct validity of the Parent-Child Conflict Tactics Scale (CTSPC) in an urban population in Northeast Brazil

The Parent-Child Conflict Tactics Scale (CTSPC) is one of the most widely used instruments in the world for investigating domestic violence against children, but targeted use has proven inadequate given the phenomenon's complexity. This study focused on the factor structure of CTSPC scales in an urban population in Northeast Brazil. We conducted a cross-sectional study in a cohort of 1,370 children in Salvador, Bahia State. Factor analysis with promax oblique rotation was performed, and the Kuder-Richardson coefficient was calculated. Factor analysis showed a different distribution of items in the factors as compared to the original instrument. Violence showed a gradual profile in each factor. The Kuder-Richardson coefficient was 0.63 for factor 1, 0.59 for factor 2, and 0.42 for factor 3. The items behaved differently from the original instrument, corroborating international studies. These findings support proposing a resizing of the CTSPC

O quê, para quê e como? Desenvolvendo instrumentos de aferição em epidemiologia

The development and cross-cultural adaptation of measurement instruments have received less attention in methodological discussions, even though it is essential for epidemiological research. At the same time, the quality of epidemiological measurements is often below ideal standards for the construction of solid knowledge on the health-disease process. The scarcity of systematizations in the field about what, what for, and how to adequately measure intangible constructs contributes to this scenario. In this review, we propose a procedural model divided into phases and stages aimed at measuring constructs at acceptable levels of validity, reliability, and comparability. Underlying our proposal is the idea that not only some but several connected studies should be conducted to obtain appropriate measurement instruments. Implementing the model may contribute to broadening the interest in measurement instruments and, especially, addressing key epidemiological problems.Embora fundamental para a pesquisa epidemiológica, o desenvolvimento e a adaptação transcultural de instrumentos de aferição têm recebido menos destaque nas discussões metodológicas que permeiam o campo. Em paralelo, a qualidade das mensurações realizadas em muitos estudos epidemiológicos está frequentemente aquém do desejado para a construção de conhecimento sólido sobre o processo saúde-doença. A escassez de sistematizações sobre o que, para que e como aferir na área provavelmente contribui para esse cenário. Nesta revisão, propomos um modelo processual composto por uma sequência de etapas voltadas à mensuração de construtos em níveis aceitáveis de validade, confiabilidade e, por extensão, comparabilidade. Subjaz à proposta a ideia de que não apenas alguns, mas diversos estudos concatenados entre si e sucessivamente mais aprofundados devem ser conduzidos para obter aferições adequadas. A implementação do modelo poderá contribuir para alargar o interesse sobre instrumentos de aferição e, especialmente, para enfrentar os problemas investigados em epidemiologia

Development of a Measure of Postpartum PTSD: The City Birth Trauma Scale

Post-traumatic stress disorder (PTSD) affects 4% of women after birth yet there are very few questionnaire measures of postpartum PTSD that have been validated in this population. In addition, none of the available questionnaires assess postpartum PTSD in accordance with criteria specified in the latest edition of the Diagnostic and Statistical Manual [DSM-5, (1)]. The City Birth Trauma Scale is a 29-item questionnaire developed to measure birth-related PTSD according to DSM-5 criteria of: stressor criteria (A), symptoms of re-experiencing (B), avoidance (C), negative cognitions and mood (D), and hyperarousal (E), as well as duration of symptoms (F), significant distress or impairment (E), and exclusion criteria or other causes (H). Two additional items from DSM-IV were also included on the basis of evidence suggesting they might be important in this population. The first was criterion A2 that women responded to events during birth with intense fear, helplessness or horror. The second was symptoms of emotional numbing. Items were first reviewed by researchers (n = 9) and postpartum women (n = 8) and revised accordingly. The questionnaire was then completed by 950 women recruited online. Results showed the City Birth Trauma Scale had excellent reliability (Cronbach's α = 0.92) and is easy to understand (Flesch reading score 64.17). Exploratory factor analysis found two factors which together accounted for 56% of the variance: (i) Birth-related symptoms (40.8% variance) and (ii) General symptoms (15.5% variance). PTSD symptoms were highly associated with distress, impaired functioning, and women reporting they wanted treatment (r = 0.50–0.61). Removing DSM-IV A2 criteria only increased births classified as traumatic by 2%. Adding the item on emotional numbing did not change the psychometric properties of the scale. These items were therefore removed. The City Birth Trauma Scale has good psychometric properties and the two symptom clusters identified are consistent with previous research on symptoms of postpartum PTSD. This scale therefore provides a promising measure of PTSD following childbirth that can be used in research and clinical practice. Future research should examine the scale's predictive validity using clinical interviews

Transcultural adaptation to the Brazilian Portuguese of the Postpartum Bonding Questionnaire for assessing the postpartum bond between mother and baby

The establishment of the bond between mother and baby in the postpartum period is important for ensuring the physical and psychological health of both. This short communication reports the first phase of the cross-cultural translation and adaptation to the Brazilian context of the Postpartum Bonding Questionnaire (PBQ). Four aspects of equivalence between the original scale and the Portuguese version were evaluated: the conceptual, semantic, operational and item equivalences. Literature review, the study of PBQ history, translation, expert evaluation, back-translation and pretests involving 30 mothers with children aging up to 7 months using a primary healthcare unit were conducted. Each step demonstrated the need for adjustments, which were made during the adaptation process. At the end of the study, a version of PBQ in Brazilian Portuguese equivalent to the original one was obtained, offering promise for national studies on the mother-baby bond, and its influence on health, and for use in health services

HPV DNA testing with cytology triage in cervical cancer screening: Influence of revealing HPV infection status

BACKGROUND: Knowledge of cervical human papillomavirus (HPV) status might influence a cytotechnician's assessment of cellular abnormalities. The authors compared original cytotechnicians' Papanicolaou (Pap) readings for which HPV status was concealed with Pap rereads for which HPV status was revealed separately for 3 screening populations. METHODS: Previously collected cervical Pap smears and clinical data were obtained from the Canadian Cervical Cancer Screening Trial (study A), the Democratic Republic of Congo Community-Based Screening Study (study B), and the Brazilian Investigation into Nutrition and Cervical Cancer Prevention (study C). Smears were reread with knowledge of HPV status for all HPV-positive women as well as a sample of HPV-negative women. Diagnostic performance of Pap cytology was compared between original readings and rereads. RESULTS: A total of 1767 Pap tests were reread. Among 915 rereads for HPV-positive women, the contrast between "revealed" and "concealed" Pap readings demonstrated revisions from negative to positive results for 109 women (cutoff was atypical squamous cells of undetermined significance or worse) and 124 women (cutoff was low-grade squamous intraepithelial lesions [LSIL] or worse). For a disease threshold of cervical intraepithelial neoplasia of grade 2 or worse, specificity significantly declined at the atypical squamous cells of undetermined significance cutoff for studies A (86.6% to 75.3%) and C (42.5% to 15.5%), and at the LSIL cutoff for study C (61.9% to 37.6%). Sensitivity remained nearly unchanged between readings, except in study C, in which reread performance was superior (91.3% vs 71.9% for the LSIL cutoff). CONCLUSIONS: A reduction in the diagnostic accuracy of Pap cytology was observed when revealing patients' cervical HPV status, possibly due to a heightened awareness of potential abnormalities, which led to more false-positive results. Cancer (Cancer Cytopathol) 2015. (c) 2015 American Cancer Society.Financial support for the Canadian Cervical Cancer Screening Trial was provided by the Canadian Institutes of Health Research (CIHR) (grant MCT-54063 to Dr. Franco). The Democratic Republic of Congo's Cervical Screening Study was funded by the Program for Appropriate Technology in Health (grant to Dr. Sangwa-Lugoma). The Brazilian Investigation into Nutrition and Cervical Cancer Prevention study received funding from the Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (grant to Dr. Cardoso). Additional support for the work performed in rereading Papanicolaou tests was provided by a CIHR team grant (83320 to Dr. Franco). Additional support for human papillomavirus testing and genotyping was provided by the above CIHR team grant and the Reseau FRQS SIDA-MI

Adult oral health-related quality of life instruments: A systematic review

Objectives: To identify the existing OHRQoL instruments for adults, describe their scope (generic or specific), theoretical background, validation type and cross-cultural adaptation. Methods: A systematic search was conducted, and articles presenting validation of OHRQoL instruments in adults were included. Data were collected about the validation type: external validation (correlations/associations); or internal validation (factor analysis/principal components analysis, item response theory); and cross-cultural adaptation. Results: Of 3730 references identified, 326 were included reporting 392 studies. Forty-two original instruments were found among 74 different versions, 40 generic and 34 condition-specific. Locker's theoretical framework was the predominant model. The oral health impact profile (OHIP) presented 20 versions, with OHIP-14 being the most frequent (26.8%), followed by geriatric oral assessment index (GOHAI) (14.0%), OHIP-49 (11.7%) and oral impacts on daily performances (OIDP) (9.7%). Most studies focused on external validation (65.3%), while internal validation was reported in 24.8% (n = 26) of OHIP-14 studies, 50.9% (n = 28) of GOHAI and 21.1% (n = 8) of OIDP studies. Most internal validation studies were conducted in English-speaking countries (n = 33), and cross-cultural adaptation was mostly in non-English-speaking European countries (n = 40). Conclusions: Many generic and condition-specific instruments were found, but few have gone through a rigorous internal validation process or have undergone cross-cultural adaptation. This, in turn, makes it difficult for researchers to choose an appropriate measure based on known psychometric properties. OHIP-14, OIDP and GOHAI seem to be the most widely validated instruments. Equalizing measurement properties for comparability are challenging due to theoretical heterogeneity. Future studies should assess psychometric properties, explore the factorial structure and work towards a consensus on critical issues

Tecnologias de informação e comunicação (TICS) na gestão da cidade: reflexões e perspectivas

The aim of this final essay was to illustrate and reflect on the influence of Information and Communication Technologies (ICTs) in cities, pointing out conceptual issues which oriented social shifts of the Technological Revolution taken place from the latter part of the 20st century onwards as well as proposing a classification model encompassing the great variety of digital tools made possible and deployed by a diverse range of urban agents. The research’s main goal was to try to unveil important aspects related to the intensification of multi-scale network society, the emergence of alternative content development, new ways of social integration and social action, and opportunities of government openness to popular participation, as well as to classify the variety of urban tools developed and deployed within the ever so increasing “intelligent” or “smart” cities, bringing on relevant issues associated with political and social impacts caused by the introduction of “efficient” and interactive technological tools on urban management and urban planning, besides urban habits and practices.O objetivo do presente trabalho foi ilustrar e refletir sobre a influência das Tecnologias de Informação e Comunicação (TICs) na cidade, atentando às questões conceituais que orientam as transformações sociais ocorridas a partir da Revolução Tecnológica do final do século XX e propondo um modelo de classificação que dê conta do enorme arsenal de ferramentas digitais urbanas potencializadas e desenvolvidas por diversos agentes. O foco central da pesquisa foi tentar revelar aspectos relevantes do ponto de vista da intensificação de uma sociedade transescalar em rede, do surgimento de novos paradigmas de criação de conteúdo, da reconfiguração associativa e manifestativa, bem como das possibilidades de abertura do governo à participação civil, e, ao mesmo, categorizar as diversas ferramentas criadas e potencializadas com vistas a ilustrar o desenvolvimento cada vez mais assíduo de “cidades inteligentes” (smart cities), levantando questões pertinentes aos reflexos políticos e sociais provenientes da adoção de ferramentas tecnológicas “eficientes” e interativas na gestão urbana, no planejamento urbano e em hábitos e práticas na cidade

Transcultural adaptation of the Emotion Matching Task: an emotion neuropsychological assessment

Emotions play a central role in children’s relationships. Deficits in emotional understanding have been associated with several neuropsychiatric disorders. In Brazil, however, few psychological instruments are available to assess young children’s emotional development. The objective of the present study was to make a transcultural adaptation of the Emotion Matching Task (EMT). The EMT was translated and adapted by a team of bilingual researches and then back-translated to English. The preliminary versions were assessed by EMT’s authors and by Brazilians specialized judges. The final version was applied in a sample of 50 children between three and six years of age and answered by nine judges in three Brazilian states. The results indicate good semantic equivalence and good agreement with the answers provided (κ= 0.88, Z=95.2, p<0.001). The final version of the EMT was considered appropriate and satisfactory

An intra-community profile of nutritional deficiency: a study of under-fives in a low-income community in Rio de Janeiro (Brazil)

Como parte de um estudo epidemiológico sobre a saúde de crianças abaixo de cinco anos realizado na favela da Rocinha, Rio de Janeiro, RJ (Brasil), avaliou-se o perfil nutricional de uma amostra representativa de 591 crianças. De acordo com o indicador peso-para-idade, 23,9% encontravam-se com desnutrição leve (grau I pela classificação de Gomez), e apenas 22,0% evidenciaram desnutrição moderada (grau II). Esse achado mostrou-se compatível com aqueles onde se utilizaram os indicadores peso-para-altura e altura-para-idade: (a) ausência de desnutrição aguda, com um perfil de peso-para-altura superposto ao de uma população padrão normal, e (b) deficiência de crescimento, com 7% e 15% de crianças excedendo os valores abaixo de, respectivamente, -2 e -1 desvios-padrão esperados numa população normal. Quanto à deficiência estatural, as seguintes variáveis mostraram-se associadas mesmo após controle pelo "status" econômico (indicado pelas condições ambientais do domicílio): baixo peso-ao-nascer, número de irmãos igual ou acima de três, sexo masculino, história de nunca ter amamentado ao seio materno, e história de morte infantil prévia na família. Cada variável é discutida separadamente, bem como o perfil nutricional geral e a marcada estratificação social intracomunitária da deficiência estatural.This study is part of a larger epidemiological study concerned with the health status of children under the age of five carried out in the squatter settlement of Rocinha, and focuses on the nutritional profile of a representative sample of 591 children. According to the weight-for-age criteria (Gomez's classification), 23,9% and 2,0% were, respectively, mildly and moderately malnourished. This finding is in agreement with the assessment using weight-for-height and height-for-age as anthropometric indicators: (a) absence of acute malnutrition (wasting) indicated by a pattern overlapping that of an expected normal population, and (b) growth deficiency (stunting) indicated by 7% and 15% of children exceeding the proportion normally expected to be, respectively, below the -1 and -2 standard deviate limits. So far as growth failure was concerned, the following variables remained associated even when controlling for economic status (indicated by the environmental conditions of the household): low birth weight, number of siblings equal to or above three, male gender, a history of never having breastfed and a family history of previous sibling death. Each variable is discussed separately, as well as the overall nutritional profile and the marked social intra-community stratification related to growth deficit