ABSTRACT
Introduction Pediatric anxiety disorders are the most common mental health disorders in the middle-childhood age group. The purpose of this study is to assess anxiety disorder symptoms, as defined by the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV), in a large community sample of low socioeconomic level rural children and to investigate some of the psychometric properties (internal consistency, construct and convergent validity and items rated as often or always experienced) of the Malay version of the Spence Children's Anxiety Scale - Child version (SCAS-C). Method Six hundred children aged 9-11 and 424 of their parents completely answered the child or parent versions of the SCAS. Results Results indicated that the internal reliability of subscales were moderate to adequate. Significant correlations between child and parent reports supported the measure's concurrent validity. Additionally, anxiety levels in this Malaysian sample were lower than among South-African children and higher than among their Western peers. There were both similarities and differences between symptom items reported as often or always experienced by Malaysian students and by children from other cultures. Confirmatory factor analysis provided evidence of the existence of five inter-correlated factors for anxiety disorders based on SCAS-C. Conclusion Although some of the instrument's psychometric properties deviated from those observed in some other countries, it nevertheless appears to be useful for assessing childhood anxiety symptoms in this country.
Introdução Transtornos de ansiedade são a doença de saúde mental mais comum em crianças na terceira infância. O objetivo deste estudo foi examinar sintomas de transtorno de ansiedade conforme definidos na 4ª edição do Manual Diagnóstico e Estatístico de Transtornos Mentais (DSM-IV) em uma grande amostra comunitária de crianças de baixo nível socioeconômico vivendo em zona rural na Malásia e investigar as propriedades psicométricas (consistência interna, construto, validade convergente e frequência de respostas muitas vezes e sempre) da versão malaia da Escala de Ansiedade Infantil de Spence - Versão para Crianças. Método Um total de 600 crianças com idade entre 9 e 11 anos e 424 pais responderam todas as questões das versões da escala para crianças e para pais. Resultados Os resultados indicaram que a confiabilidade interna das subescalas variou de moderada a suficiente. Correlações significativas entre os relatos das crianças e de seus pais reforçaram a validade convergente do instrumento. O nível de ansiedade observado na amostra de crianças malaias foi menor do o nível relatado para crianças na África do Sul e maior do que em crianças de países ocidentais. A frequência das respostas escolhidas pelos estudantes malaios demonstrou algumas similaridades e diferenças em relação a outras culturas. A análise fatorial confirmatória revelou evidência da presença de cinco fatores inter-relacionados para transtorno de ansiedade com base na escala avaliada. Conclusão Embora algumas propriedades psicométricas do instrumento avaliado tenham desviado dos resultados obtidos em outros países, a escala parece útil para avaliar sintomas de ansiedade na infância na Malásia.
Subject(s)
Humans , Male , Female , Child , Anxiety Disorders/diagnosis , Psychiatric Status Rating Scales , Parents , Psychometrics , Rural Population , Socioeconomic Factors , Sex Factors , Reproducibility of Results , Factor Analysis, Statistical , Age Factors , Diagnostic and Statistical Manual of Mental Disorders , MalaysiaABSTRACT
Introduction: Anxiety among children has increased in recent years. Culturally adapted questionnaires developed to measure the level of anxiety are the best screening instruments for the general population. This study describes the scientific translation and adaptation of the Spence Children's Anxiety Scale (SCAS) into the Malay language. Method: The process of scientific translation of this selfreport instrument followed the guidelines of the Task Force for Translation and Cultural Adaptation of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Results: The Malay version and its adaptation for a new cultural context are described. Conclusion: The Malay version achieved the aims of the original version and its conceptual and operational equivalence. It may be used as the first Malay instrument to measure anxiety among children in research and in clinical and community settings. .
Introdução: A ansiedade infantil tem crescido em anos recentes. Questionários culturalmente adaptados e desenvolvidos para medir o nível de ansiedade são os melhores instrumentos de triagem para a população em geral. Este estudo descreve a tradução e adaptação científica da Escala de Ansiedade Infantil de Spence para a língua malásia. Método: O processo de tradução científica deste instrumento de autorrelato seguiu as orientações da Força-Tarefa para a Tradução e Adaptação Cultural da International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Resultados: A versão malásia e sua adaptação para um novo contexto cultural são descritas. Conclusão: A versão malásia atingiu os objetivos da versão original e sua equivalência conceitual e operacional. Poderá ser usada como o primeiro instrumento malásio para medir ansiedade entre crianças em contextos de pesquisa, clínicos ou comunitários. .
Subject(s)
Humans , Male , Female , Child , Anxiety Disorders/diagnosis , Psychiatric Status Rating Scales , Surveys and Questionnaires , Culture , Language , Malaysia , Self Report , TranslationsABSTRACT
Background: To quantify the internal consistency of medical students' scores. Aim: We assessed the associations between medical students' scores in physiopathology and clinical courses and compared these scores with their scores in their comprehensive exams. Settings and Design: We collected medical students' scores in their courses and also in their comprehensive exam in six consecutive years. Materials and Methods: We assessed the associations between students' scores and their personal characteristics, and the consistency between theoretical and practical courses. Statistical Analysis: We used Pearson correlation coefficient and linear regression. In addition, we computed difficulty and discrimination indices of students' scores in their courses by comparing these scores with comprehensive clinical exam (CCE). Results: Generally, females and younger students were more successful. CCE were predicted by students' scores and their characteristics relatively accurate (the adjusted R2 of the model was 0.59). Students' scores in the pathology and in thesis had the maximum and minimum discrimination indices, while the difficulties of these two courses were in reverse order. The strongest association was observed between theoretical and practical scores in internal medicine while the associations between theoretical and practical scores in the other courses were not strong although all of them were statistically significant. Conclusions: Using this approach to explore the students' score, might highlight the weak points of the current educational system. For example we found that the students' score in thesis had the minimum accuracy; although students obtained very high score in this course. Hence, for better comparison of the accuracy students' scores in colleges around the world, we recommend similar quantitative approach.
ABSTRACT
OBJECTIVES: This study aimed to estimate the relapse risk of Plasmodium vivax under national chemotherapy scheme using a novel method, and assessed its pattern in Kahnooj, a malaria endemic area in Iran. METHODS: The authors traced repeated episodes of malaria attack between 1994 and 2001 and then, estimated the risks of secondary attack of P. vivax, classified by the species in their primary attack. It is suggested that the difference between the secondary attack rate in those who were infected by P falciparum and P. vivax in their primary attack may estimate the P. vivax relapse rate indirectly. RESULTS: This method showed that the relapse risk of P. vivax with in one and two years after the primary attack were 16.8 and 24.5% respectively. The risks of relapse before three or after 18 months were very low. INTERPRETATION & CONCLUSION: The relapse pattern of P. vivax was compatible with the dominant pattern in most of the temperate areas. In addition, the relapse risk was very close to the estimated relapse risks in clinical trials on anti-relapse drugs. Therefore, we concluded that the anti-relapse therapy in the study area was effective; also, this method may estimate the relapse risk of P. vivax accurately.
Subject(s)
Animals , Antimalarials/therapeutic use , Humans , Iran/epidemiology , Malaria, Falciparum/drug therapy , Malaria, Vivax/drug therapy , Plasmodium vivax , Proportional Hazards Models , Recurrence , Seasons , Time FactorsABSTRACT
BACKGROUND AND OBJECTIVES: Although polymerase chain reaction (PCR) is a new technique in the diagnosis of malaria with very high accuracy; light microscopy is still conventional diagnostic method in Iran. In this study we checked the accuracy of light microscopy using the results of PCR as gold standard in Iran. METHODS: The blood samples were collected from 124 febrile cases in Kahnooj district. The blood slides were read by microscopists, and double checked by experts in provincial referral laboratory. DNA samples were processed by PCR to amplify species-specific sequences of 18s subunit ribosomal ribonucleic acid (18ssrRNA) genes of Plasmodium vivax and P. falciparum. RESULTS: The sensitivity and specificity of microscopy in the detection of Plasmodium spp infection were 77% (95% CI: 46-94%) and 100% (95% CI: 95-100%), correspondingly. Also, the estimated positive and negative predictive values were 100% (95% CI: 66-100%) and 97% (95% CI: 91-99%), respectively. INTERPRETATION AND CONCLUSION: According to these results, we believe that the accuracy of light microscopy in the diagnosis of malaria in Kahnooj was acceptable. Expert micorscopists in endemic areas of Iran such as Kahnooj and available equipments in one hand and expensive PCR test on the other hand may convince that in current situation we do not have to change the diagnostic method.