Abstract Introduction: Pediatric patients with chronic kidney disease (CKD) develop mineral and bone disorders (MBD). We do not have Brazilian data that evaluate these outcomes, which can be obtained through epidemiological records. Objective: To present the DOMINÓ study, which aims to describe CKD-MBD characteristics in Brazilian pediatric patients. Methods: Retrospective and prospective, multicenter, observational cohort. The retrospective study will analyze data from prevalent patients in 2024, and the prospective study will analyze data from 2025 onwards. Demographic, clinical, laboratory, imaging, and bone biopsy data will be collected from pediatric patients with CKD-MBD < 18 years old with CKD stage 3-5D and kidney transplant recipients. The Ethics Committees of the participating centers approved the study. Discussion/conclusion: The DOMINÓ study will provide information on the incidence, prevalence, morbidity, treatment results, and mortality of this pediatric disease in Brazil. Future analyses will allow us to identify predictors of response to treatment and improve the care for these patients. Introduction (CKD MBD. MBD . (MBD) outcomes records Objective CKDMBD Methods multicenter cohort 2024 202 onwards Demographic clinical laboratory imaging 1 35D D 3 5D recipients Discussion/conclusion Discussionconclusion Discussion conclusion incidence prevalence morbidity results Brazil (MBD 20 2

Resumo Introdução: Pacientes pediátricos com doença renal crônica (DRC) evoluem com distúrbios minerais e ósseos (DMO). Não dispomos de dados brasileiros que avaliem esses desfechos; que podem ser obtidos por meio de registros epidemiológicos. Objetivo: Apresentar o projeto DOMINÓ, cuja proposta é descrever as características da DMO-DRC em pacientes pediátricos brasileiros. Métodos: Coorte retrospectiva e prospectiva, multicêntrica, observacional. O estudo retrospectivo analisará os dados dos pacientes prevalentes em 2024 e o prospectivo, os dados a partir de 2025. Serão coletados dados demográficos, clínicos, laboratoriais, de imagem e da biópsia óssea de pacientes pediátricos com DMO-DRC < 18 anos com DRC estágios 3-5D e dos transplantados renais. Os Comitês de Ética dos centros participantes aprovaram o estudo. Discussão/conclusão: O estudo DOMINÓ permitirá conhecer a incidência, prevalência, morbidade, resultados dos tratamentos e mortalidade dessa doença pediátrica no Brasil. Análises futuras permitirão identificar preditores de resposta ao tratamento e melhorar os cuidados com esses pacientes. Introdução (DRC DMO. DMO . (DMO) desfechos epidemiológicos Objetivo DMODRC Métodos prospectiva multicêntrica observacional 202 prospectivo 2025 demográficos clínicos laboratoriais 1 35D D 3 5D renais Discussão/conclusão Discussãoconclusão Discussão conclusão incidência prevalência morbidade Brasil (DMO 20 2

ABSTRACT BACKGROUND: Brazilian medical schools equitably divide their medical education assessments into five content areas: internal medicine, surgery, pediatrics, obstetrics and gynecology, and public health. However, this division does not follow international patterns and may threaten the examinations’ reliability and validity. OBJECTIVE: To assess the reliability indices of the content areas of serial, cross-institutional progress test examinations. DESIGN AND SETTINGS: This was an analytical, observational, and cross-sectional study conducted at nine public medical schools (mainly from the state of São Paulo) with progress test examinations conducted between 2017 and 2023. METHODS: The examinations covered the areas of basic sciences, internal medicine, surgery, pediatrics, obstetrics and gynecology, and public health. We calculated reliability indices using Cronbach’s α, which indicates the internal consistency of a test. We used simple linear regressions to analyze temporal trends. RESULTS: The results showed that the Cronbach’s α for basic sciences and internal medicine presented lower values, whereas gynecology, obstetrics, and public health presented higher values. After changes in the number of items and the exclusion of basic sciences as a separate content area, internal medicine ranked highest in 2023. Individually, all content areas except pediatrics remained stable over time. CONCLUSIONS: Maintaining an equitable division in assessment content may lead to suboptimal results in terms of assessment reliability, especially for internal medicine. Therefore, content sampling of medical knowledge for general assessments should be reappraised. BACKGROUND surgery gynecology However validity OBJECTIVE serial crossinstitutional cross institutional SETTINGS analytical observational crosssectional sectional mainly Paulo 201 2023 METHODS Cronbachs Cronbach s trends RESULTS values area Individually time CONCLUSIONS Therefore reappraised 20 202 2

Abstract Objective Advances in medicine have increased the life expectancy of pediatric patients with chronic illnesses, and challenges with the guided transition of adolescents and young adults from pediatric clinics to adult clinics have grown. The aim of this study was to better understand readiness and factors related to this transition process in Brazil. Method In this cross-sectional study of 308 patients aged from 16 to 21 years under follow-up in pediatric specialties, the degree of readiness for transition was assessed using the Transition Readiness Assessment Questionnaire (TRAQ) and its domains. Associations with demographic data, clinical data, socio-economic level, medication adherence, family functionality, and parental satisfaction with health care were evaluated. Results The median TRAQ score was 3.7 (3.2 - 4.2). Better readiness was associated with female patients, socio-economic class A-B, current active employment, higher level of education, not failing any school year, attending medical appointments alone, functional family, and a good knowledge of disease and medications. A low correlation was observed between TRAQ and age. TRAQ presented good internal consistency (alpha-Cronbach 0.86). In the multiple linear regression, TRAQ score showed a significant association with female gender, advanced age, socio-economic class A-B, better knowledge of disease and medications, and independence to attend appointments alone. Conclusion TRAQ instrument can guide healthcare professionals to identify specific areas of approach, in order to support adolescents with chronic disease to set goals for their own personal development and improve their readiness to enter into the adult healthcare system. In this study, some factors were related to better TRAQ scores. illnesses grown Brazil crosssectional cross sectional 30 1 2 followup follow up specialties (TRAQ domains data socioeconomic socio economic adherence functionality evaluated 37 3 7 3. 3.2 32 (3. 4.2. 42 4.2 . 4 4.2) AB, AB B, B A-B employment education year alone medications age alphaCronbach alpha Cronbach 0.86. 086 0.86 0 86 0.86) regression gender approach system scores (3 4. 08 0.8 8 ( 0.

Resumo A vacina covid-19 confere proteção direta, reduz as taxas de transmissão do vírus e de novas variantes. No Brasil, estão liberadas para a população pediátrica as vacinas Pfizer/BioNTech e a CoronaVac, ambas seguras, eficazes e imunogênicas. Pacientes pediátricos com síndrome nefrótica e covid-19 têm curso clínico regular sem complicações relacionadas ao uso de esteroides ou vacinas. Esses pacientes, com ou sem imunossupressão, não apresentam maior risco de covid-19 grave e o tratamento com esteroides é seguro. Os pacientes com doença renal crônica têm covid-19 mais leve, sem necessidade de hospitalização. A resposta vacinal pode ser reduzida e/ou a duração dos anticorpos pós-vacinação pode ser menor do que na população geral. Entretanto, a vacina covid-19 está recomendada, considerando o risco de exposição. Acredita-se que pacientes com síndrome hemolítico-urêmica teriam maior risco de covid-19 grave. A vacina é recomendada, embora dados específicos sobre segurança e eficácia da vacina covid-19 sejam limitados. Há concordância que os benefícios da imunidade induzida superam quaisquer riscos da imunização. A vacina covid-19 é recomendada para crianças e adolescentes candidatos ao transplante renal ou já transplantados. Esses pacientes têm resposta imunológica reduzida após a vacina, entretanto ela é recomendada porque os benefícios superam qualquer risco dessa vacinação. A recomendação atual no Brasil é a vacina de tecnologia RNA mensageiro. O objetivo deste documento é levar aos nefrologistas pediátricos os conhecimentos mais recentes sobre a vacinação contra contra-19 em crianças com doenças renais. covid19 covid 19 covid-1 direta variantes PfizerBioNTech Pfizer BioNTech CoronaVac seguras imunogênicas imunossupressão seguro leve hospitalização eou pósvacinação pós geral Entretanto exposição Acreditase Acredita se hemolíticourêmica hemolítico urêmica limitados imunização transplantados mensageiro contra19 contra-1 renais covid1 1 covid- contra1 contra-

ABSTRACT The covid-19 vaccine confers direct protection and reduces transmission rates of the virus and new variants. Vaccines from Pfizer/BioNTech and CoronaVac have been cleared for children in Brazil. They are safe, effective, and immunogenic. There are no known complications associated with the use of steroids or vaccines in pediatric patients with covid-19 and nephrotic syndrome. With or without immunosuppression, these patients are not at increased risk of severe covid-19, and steroids are safe for them. A milder form of covid-19 occurs in patients with chronic kidney disease without the need for hospitalization. The vaccine response may be reduced and/or the duration of antibodies after vaccination may be shorter than in the general population. However, considering risk of exposure, vaccination against covid-19 is recommended. It is believed that patients with hemolytic-uremic syndrome are at higher risk of severe covid-19. Vaccination is recommended, although specific data on the safety and efficacy of the covid-19 vaccine are limited. There is agreement that the benefits of induced immunity outweigh the risks of immunization. Vaccination against covid-19 is recommended for children and adolescents needing kidney transplantation or who have undergone transplantation. These patients present decreased immune response after vaccination, but immunization is recommended because the benefits outweigh the risks of vaccination. Current recommendations in Brazil stipulate the use of the messenger RNA vaccine. This paper aims to provide pediatric nephrologists with the latest knowledge about vaccination against covid-19 for children with kidney disease. covid19 covid 19 covid-1 variants PfizerBioNTech Pfizer BioNTech effective immunogenic immunosuppression covid19, 19, them hospitalization andor population However exposure hemolyticuremic hemolytic uremic covid19. 19. limited covid1 1 covid-

Resumo Introdução: A diálise peritoneal (DP) é importante para a pediatria. Este estudo mostrou dados de centros brasileiros que utilizam DP pediátrica. Método: Estudo transversal, observacional, descritivo com questionário eletrônico. Incluiu-se pacientes de 0-18 anos em DP cadastrados nos bancos de dados dos diversos centros. Questionário preenchido anonimamente, sem dados de identificação. Foi adotada metodologia quantitativa. Resultados: 212 pacientes estão em DP no Brasil (agosto, 2021). 80% têm menos de 12 anos de idade. A maioria realiza DP automatizada e 74% são dependentes do Sistema Único de Saúde. Em 25% dos centros faltou material de DP e em 51% os pacientes pediátricos foram convertidos de DP para HD. Conclusão: A maioria dos pacientes tinha menos de 12 anos e era dependente do SUS. A escassez de insumos aconteceu em 25% dos centros. Esses dados apontam para o problema da sustentabilidade de DP, única alternativa de TRS em crianças muito pequenas. Introdução (DP pediatria pediátrica Método transversal observacional eletrônico Incluiuse Incluiu se 018 0 18 0-1 anonimamente identificação quantitativa Resultados 21 agosto, agosto (agosto 2021. 2021 . 2021) 80 1 idade 74 Saúde 25 51 HD Conclusão SUS pequenas 01 0- 2 202 8 7 5 20

Abstract Introdução: A diálise peritoneal (DP) é importante para a pediatria. Este estudo mostrou dados de centros brasileiros que utilizam DP pediátrica. Método: Estudo transversal, observacional, descritivo com questionário eletrônico. Incluiu-se pacientes de 0-18 anos em DP cadastrados nos bancos de dados dos diversos centros. Questionário preenchido anonimamente, sem dados de identificação. Foi adotada metodologia quantitativa. Resultados: 212 pacientes estão em DP no Brasil (agosto, 2021). 80% têm menos de 12 anos de idade. A maioria realiza DP automatizada e 74% são dependentes do Sistema Único de Saúde. Em 25% dos centros faltou material de DP e em 51% os pacientes pediátricos foram convertidos de DP para HD. Conclusão: A maioria dos pacientes tinha menos de 12 anos e era dependente do SUS. A escassez de insumos aconteceu em 25% dos centros. Esses dados apontam para o problema da sustentabilidade de DP, única alternativa de TRS em crianças muito pequenas. Introdução (DP pediatria pediátrica Método transversal observacional eletrônico Incluiuse Incluiu se 018 0 18 0-1 anonimamente identificação quantitativa Resultados 21 agosto, agosto (agosto 2021. 2021 . 2021) 80 1 idade 74 Saúde 25 51 HD Conclusão SUS pequenas 01 0- 2 202 8 7 5 20

SUMMARY OBJECTIVES: The transition from face-to-face to remote teaching is yet to be fully understood. In clinical training, traditional teaching must prevail because it is essential for the acquisition of skills and professionalism. However, the responses of each school to the pandemic and the decision on when to resume clerkship rotations were mixed. In this study, we aimed to analyze whether the time to resume clerkship rotations was associated with the performance of the students by using a multi-institutional Progress Test. METHODS: This is a cross-sectional study conducted at nine different Brazilian medical schools that administer the same annual Progress Test for all students. We included information from 1,470 clerkship medical students and analyzed the time of clinical training interruption as the independent variable and the student’s scores as the dependent variable. RESULTS: The comparisons of the students’ scores between the schools showed that there are differences; however, they cannot be attributed to the time the clerkship rotations were paused. The correlation between the schools’ average scores and the time to resume clerkship rotations was not significant for the fifth year (r= -0.298, p=0.436) and for the sixth year (r= -0.440, p=0.240). By using a cubic regression model, the time to resume clerkship rotations could explain 3.4% of the 5-year students’ scores (p<0.001) and 0.9% of the 6–year students, without statistical difference (p=0.085). CONCLUSIONS: The differences between the students’ scores cannot be attributed to the time when the schools paused the clerkship rotations.

Resumo: Introdução: As relações entre o desempenho dos alunos nos exames de residência médica e testes de progresso e os estágios no internato médico não estão bem estabelecidas. Objetivo: Este estudo teve como objetivos medir as correlações entre as notas nos testes de progresso e as notas no internato e o resultado final do exame de residência médica, e determinar qual desempenho teve a maior correlação com o exame final da residência médica. Método: Trata-se de um estudo retrospectivo e longitudinal com análises de correlação de notas em provas de progresso do primeiro ao sexto ano do curso de Medicina, coeficiente de desempenho de estágios do internato (quinto e sexto anos) e notas do exame final de residência médica em uma coorte de alunos matriculados em uma Faculdade de Medicina de uma instituição pública federal, usando análise fatorial. Foram incluídos os alunos que realizaram os testes de progresso do primeiro ao sexto ano. Resultado: Dos 123 alunos matriculados no primeiro ano do curso de Medicina em 2009, 114 (92,7%) realizaram os testes de progresso durante os seis anos letivos e foram incluídos. As notas médias nos testes de progresso de 1 a 10 foram 2,67 (primeiro ano), 3,01 (segundo ano), 4,19 (terceiro ano), 4,01 (quarto ano), 5,19 (quinto ano) e 6,38 (sexto ano). As notas médias nos estágios foram 8,32 (quinto ano) e 8,26 (sexto ano). A nota média no exame teórico da residência médica foi 7,53; e a média no exame final da residência, 8,5. A análise fatorial detectou três domínios com maior força de correlação que responderam por 76,3% da variância do modelo. O componente 1 foi identificado como coeficiente de rendimento acadêmico (CAP) 5º, CAP 6º e o resultado final do exame de residência médica, o componente 2 foi formado pelas notas das provas de progresso do quinto e sextos anos, e o terceiro componente compreendeu as notas do progresso do segundo, terceiro e quarto anos. Conclusão: As notas das provas de progresso, as avaliações do internato e o exame final de residência médica apresentaram correlações significantes. Além disso, o desempenho durante o internato apresentou maior correlação com as notas do exame final de residência médica.

Abstract: Introduction: The relationships between the students’ performance on medical residency exams and progress tests and medical clerkship rotations are not well established. Objective: The objective of this study was to measure the correlations between grades on progress tests and clerkship rotations assessments and the medical residency exam and determine which performance had the strongest correlation with the final medical residency exam. Methods: This was a retrospective and longitudinal study with correlation analyses of grades on progress tests from the 1st to 6th year of medical school, the clerkship rotations performance coefficient (5th and 6th years of school) and the final medical residency exam in a cohort of students enrolled in a federal public medical school using factor analysis. Students who performed the progress tests from the 1st to 6th year were included. Results: Of 123 students enrolled in the first year of medical school in 2009, 114 (92.7%) performed the progress tests during the six years and were included. The average grades on the progress tests from 1 to 10 were 2.67 (1st year), 3.01 (2nd year), 4.19 (3rd year), 4.01 (4th year), 5.19 (5th year), and 6.38 (6th year). The average grades in the clerkship rotations were 8.32 (5th year) and 8.26 (6th year). The average score on the theoretical medical residency exam was 7.53 and the final result of the medical residency exam was 8.05. Factor analysis detected three domains with greater correlation strength that accounted for 76.3% of the model variance. Component 1 was identified as the coefficient of academic performance (CAP) 5th, CAP 6th and final medical residency exam grades, whereas component 2 was constituted by the grades of the 5th and 6th years progress tests and the third component comprised the progress tests of the 2nd, 3rd and 4th years. Conclusions: Grades on the progress tests, the clerkship rotations assessments and the final medical residency exam were correlated. Moreover, the performance during the medical clerkship rotations showed the strongest correlations with medical residency exam grades.

Resumo A vacina covid-19 confere proteção direta, reduz as taxas de transmissão do vírus e de novas variantes. No Brasil, estão liberadas para a população pediátrica as vacinas Pfizer/BioNTech e a CoronaVac, ambas seguras, eficazes e imunogênicas. Pacientes pediátricos com síndrome nefrótica e covid-19 têm curso clínico regular sem complicações relacionadas ao uso de esteroides ou vacinas. Esses pacientes, com ou sem imunossupressão, não apresentam maior risco de covid-19 grave e o tratamento com esteroides é seguro. Os pacientes com doença renal crônica têm covid-19 mais leve, sem necessidade de hospitalização. A resposta vacinal pode ser reduzida e/ou a duração dos anticorpos pós-vacinação pode ser menor do que na população geral. Entretanto, a vacina covid-19 está recomendada, considerando o risco de exposição. Acredita-se que pacientes com síndrome hemolítico-urêmica teriam maior risco de covid-19 grave. A vacina é recomendada, embora dados específicos sobre segurança e eficácia da vacina covid-19 sejam limitados. Há concordância que os benefícios da imunidade induzida superam quaisquer riscos da imunização. A vacina covid-19 é recomendada para crianças e adolescentes candidatos ao transplante renal ou já transplantados. Esses pacientes têm resposta imunológica reduzida após a vacina, entretanto ela é recomendada porque os benefícios superam qualquer risco dessa vacinação. A recomendação atual no Brasil é a vacina de tecnologia RNA mensageiro. O objetivo deste documento é levar aos nefrologistas pediátricos os conhecimentos mais recentes sobre a vacinação contra contra-19 em crianças com doenças renais.

ABSTRACT The covid-19 vaccine confers direct protection and reduces transmission rates of the virus and new variants. Vaccines from Pfizer/BioNTech and CoronaVac have been cleared for children in Brazil. They are safe, effective, and immunogenic. There are no known complications associated with the use of steroids or vaccines in pediatric patients with covid-19 and nephrotic syndrome. With or without immunosuppression, these patients are not at increased risk of severe covid-19, and steroids are safe for them. A milder form of covid-19 occurs in patients with chronic kidney disease without the need for hospitalization. The vaccine response may be reduced and/or the duration of antibodies after vaccination may be shorter than in the general population. However, considering risk of exposure, vaccination against covid-19 is recommended. It is believed that patients with hemolytic-uremic syndrome are at higher risk of severe covid-19. Vaccination is recommended, although specific data on the safety and efficacy of the covid-19 vaccine are limited. There is agreement that the benefits of induced immunity outweigh the risks of immunization. Vaccination against covid-19 is recommended for children and adolescents needing kidney transplantation or who have undergone transplantation. These patients present decreased immune response after vaccination, but immunization is recommended because the benefits outweigh the risks of vaccination. Current recommendations in Brazil stipulate the use of the messenger RNA vaccine. This paper aims to provide pediatric nephrologists with the latest knowledge about vaccination against covid-19 for children with kidney disease.

ABSTRACT Objective Investigate pulse wave velocity and central systolic blood pressure among pediatric population with chronic kidney disease. Methods In this cross-sectional study, 57 patients (61.4% male) aged 6.2 to 17.5 years old, 44 with nondialysis chronic kidney disease and 13 on chronic dialysis, were included in the analysis. The pulse wave velocity and the central systolic blood pressure were measured with an oscillometric device with an inbuilt ARC SolverⓇ algorithm and were compared with previously established percentiles. Results The prevalence of elevated pulse wave velocity was 21.1% (95%Cl: 11.4-33.9) and elevated central systolic blood pressure was 28.1% (95%CI: 17.0-41.5). According to the generalized linear model, there was a higher risk of elevated pulse wave velocity in patients undergoing chronic dialysis treatment than nondialysis chronic kidney disease patients (adjPR=4.24, 95%CI: 1.97-9.13, p=<0.001). Hypertensive patients (stage 2) had a higher risk of elevated pulse wave velocity than normotensive ones (adjPR=2.70, 95%CI: 1.05-6.95, p=0.040), as did patients younger than 12 years than the older patients (adjPR=2.95, 95%CI: 1.05-8.40, p=0.041). Hypertensive patients had a higher risk of elevated central systolic blood pressure than normotensives (adjPR=3.29, 95%Cl: 1.36-7.94), as did patients undergoing chronic dialysis treatment when comparing to nondialysis chronic kidney disease patients (adjPR=2.08, 95%Cl: 1.07-4.02). Conclusion Younger age, dialysis, and hypertension in children are independently associated with higher pulse wave velocity. Hypertension and dialysis are independently associated with higher central systolic blood pressure.

RESUMO Objetivo: Avaliar a confiabilidade e a validade do questionário QUALAS (Quality of Life Assessment in Spina Bifida) nas versões para crianças e adolescentes (QUALAS-C e QUALAS-T, respectivamente). Este é o primeiro instrumento autoaplicável de avaliação da qualidade de vida para pacientes menores de 13 anos e que também aborda a questão das incontinências urinária e fecal. Métodos: Dois urologistas realizaram a tradução das duas versões do QUALAS. Uma comissão produziu uma versão de consenso (Versão 2), a qual foi aplicada no estudo piloto para definir a Versão 3. Esta foi retrotraduzida para o inglês e comparada à versão original para equivalência de conceitos. Para verificar a confiabilidade, analisou-se a consistência interna com o alfa de Cronbach e a reprodutibilidade com o coeficiente de correlação intraclasse (CCI) após duas aplicações do questionário em intervalo de duas a quatro semanas. As validades convergente e divergente foram estudadas por meio da correlação de Pearson entre o QUALAS e um questionário genérico de qualidade de vida relacionada à saúde, o KIDSCREEN-27. Resultados: A análise de confiabilidade revelou que ambos os questionários apresentaram boa consistência interna (QUALAS-C - α=0,73; QUALAS-T - α=0,79) e boa reprodutibilidade (QUALAS-C - CCI=0,86; QUALAS-T - CCI=0,92). Na análise da validade convergente do QUALAS-C, observou-se baixa correlação entre os itens (r=0,35). Além disso, a análise da validade divergente também demonstrou baixa correlação quando comparada ao KIDSCREEN-27 (r≤0,33). As validades convergente e divergente do questionário QUALAS-T tiveram resultados semelhantes: r=0,46 e r≤0,49, respectivamente. Conclusões: Após o processo de adaptação e validação, pode-se afirmar que os questionários QUALAS-C e QUALAS-T são instrumentos confiáveis e válidos para a mensuração da qualidade de vida relacionada à saúde de crianças e adolescentes com espinha bífida a partir dos 8 anos de idade.

ABSTRACT Objective: To assess the reliability and validity of the Quality of Life Assessment in Spina Bifida (QUALAS), children and teenager’s versions (QUALAS C and T, respectively). This is the first self-applicable quality of life assessment tool for patients under 13 years of age, which also addresses the issue of urinary and fecal incontinence. Methods: Two urologists performed the translation of both QUALAS versions. A commission produced a consensus version (Version 2), which was applied as a pilot study to define Version 3. It was then backtranslated into English and compared with the original version for equivalence of concepts. Internal consistency with Cronbach’s alpha and the intraclass correlation coefficient (ICC) reproducibility was analyzed after two assessments with an interval from two to four weeks. Convergent and divergent validities between the QUALAS and a generic health-related quality of life questionnaire, the KIDSCREEN-27, were studied through Pearson’s correlation. Results: The reliability analysis showed good internal consistency for QUALAS-C (α=0.73) and QUALAS-T (α=0.79) and good reproducibility in both questionnaires (QUALAS-C - ICC=0.86; QUALAS-T - ICC=0.92). For QUALAS-C convergent validity, there was a low correlation between its items (r=0.35). In addition, a low correlation was also found in the divergent validity analysis, when compared to the KIDSCREEN-27 (r≤0.33). Convergent and divergent validities of the QUALAS-T questionnaire had similar results: r=0.46 and r≤0.49, respectively. Conclusions: After the adaptation and validation process, QUALAS-C and QUALAS-T questionnaires showed to be reliable and valid instruments for measuring the health-related quality of life of children and teenagers with spina bifida aged 8 years or older.

ABSTRACT Introduction: The Renin-Angiotensin-Aldosterone System (RAAS) has been suggested as a possible marker of renal injury in chronic diseases. This study proposes to analyze the serum and urinary markers of the RAAS in myelomeningocele patients with renal function abnormalities detected on DMSA. Material and Methods: Seventeen patients followed in our institution that presented with renal injury on DMSA. We review nephrologic and urologic clinical aspects and evaluated ultrassonagraphy, voiding urethrocystography and urodynamics. Urinary and serum samples were collected to evaluate possible correlations of renal lesions with RAAS. Control group urine and serum samples were also sent for analysis. Results: Serum ACE 2 activity means in relation to urodynamic findings were the only values that had a statistically significant difference (p = 0.040). Patients with normal bladder pattern presented higher ACE 2 levels than the high risk group. Statistical analysis showed that the study group (SG) had a significantly higher mean serum ACE than the CG. The means of ACE 2 and urinary ACE of the SG and CG were not statistically different. The ROC curve for serum ACE values had a statistically significant area for case and non-case differentiation, with 100% sensitivity and 53% specificity for values above 60.2 mg/dL. No statistically significant areas were observed in relation to ACE 2 and urinary ACE values between SG and CG. Conclusion: The analysis of serum ACE, ACE 2 and urinary ACE were not significant in patients with myelomeningocele and neurogenic bladder with renal injury previously detected by renal DMSA.

RESUMO OBJETIVO: Analisar a presença de correlação e associação entre as notas dos Testes de Progresso, provas de Habilidades e Atitudes e notas de desempenho no internato em relação às notas de Residência Médica (RM) de alunos ingressantes em 2009 no curso médico da Universidade Federal de São Paulo. MÉTODOS: análise longitudinal de 684 notas de Testes de Progresso do 1º ao 6º ano, 111 de Habilidades e Atitudes (5º ano), 228 coeficientes de rendimento do 5º e 6º anos e 211 notas da Prova de Residência Médica. Analisou-se a correlação de Pearson entre as notas e os fatores associados às notas da RM por regressão linear. RESULTADOS: Os Testes de Progresso do 1º ao 6º ano e Habilidades apresentaram pelo menos uma correlacao moderada e significante entre si. As notas da prova teorica e nota final da RM tiveram correlacao moderada com as notas de desempenho no internato. A nota teorica da Prova de RM se associou ao desempenho no internato no 6º ano (β=0,833; p<0,001) e nota final da Prova de RM se associou as notas da prova de Habilidades e Atitudes (β=0,587; p<0,001), desempenho no 5º ano (β=0,060, p=0,025) e Testes de Progresso do 6º ano (β=0,038; p=0,061). CONCLUSÕES: Houve correlacao significante entre as notas das diversas provas. A nota da prova de Residencia Medica se associou positivamente ao desempenho do aluno no internato e prova de Habilidades, com tendencia de associacao do Teste de Progresso do 6º ano com o desempenho final na prova de RM.

SUMMARY OBJECTIVE: To determine whether the scores of the Progress test, the Skills and Attitude test, and the medical internship are correlated with the medical residency exam performance of students who started medical school at the Federal University of São Paulo in 2009 METHODS: The scores of 684 Progress tests from years 1-6 of medical school, 111 Skills and Attitude exams (5th year), 228 performance coefficients for the 5th and 6th years of internship, and 211 scores on the medical residency exam were analyzed longitudinally. Correlations between scores were assessed by Pearson's correlation. Factors associated with medical residency scores were analyzed by linear regression. RESULTS: Scores of Progress tests from years 1-6 and the Skills and Attitude test showed at least one moderate and significant correlation with each other. The theoretical exam and final exam scores in the medical residency had a moderate correlation with performance in the internship. The score of the theoretical medical residency exam was associated with performance in internship year 6 (β=0.833; p<0.001), and the final medical residency exam score was associated with the Skills and Attitude score (β=0.587; p<0.001), 5th-year internship score, (β=0.060; p=0.025), and 6th-year Progress test score (β=0.038; p=0.061). CONCLUSIONS: The scores of these tests showed significant correlations. The medical residency exam scores were positively associated with the student's performance in the internship and on the Skills test, with a tendency for the final medical residency exam score to be associated with the 6th-year Progress test.

RESUMO Objetivo: Avaliar a espessura médio-intimal da carótida e os fatores associados à doença cardiovascular em crianças e adolescentes com doença renal crônica. Material e métodos: Estudo observacional transversal feito na Universidade Federal de São Paulo (ambulatórios de doença renal crônica) com 55 pacientes (60% do sexo masculino) com mediana de 11,9 anos (I25-I75: 9,2-14,8). Dos 55 pacientes, 43 estavam em tratamento conservador e 12 em terapia dialítica. Foram avaliados os parâmetros laboratoriais séricos (creatinina, ácido úrico, proteína C-reativa, colesterol total e frações e triglicérides), estado nutricional (escore z de índice de massa corpórea, escore z de estatura/idade), gordura corporal (percentual de gordura e circunferência abdominal) e pressão arterial. A medida da espessura médio-intimal da carótida foi avaliada por um único ultrassonografista e comparada com percentis estabelecidos de acordo com o sexo e a estatura. A coleta de dados foi feita entre maio de 2015 e março de 2016. Resultados: Das crianças e adolescentes com doença renal crônica, 74,5% (IC 95%: 61,0; 85,3) apresentaram aumento (> P95) da espessura médio-intimal da carótida. Nos pacientes com hipertensão arterial estágios I e II, 90,9% apresentaram aumento da espessura médio-intimal da carótida. O estado nutricional, a gordura corporal e os exames laboratoriais não apresentaram associação com o aumento da espessura médio-intimal da carótida. Após ajuste multivariado, apenas a puberdade (RP = 1,30; p = 0,037) e a hipertensão arterial estágios I e II (RP = 1,42; p = 0,011) mostraram-se independentemente associados à alteração da espessura médio-intimal da carótida. Conclusão: A prevalência do aumento da espessura da carótida foi elevada em crianças e adolescentes com doença renal crônica. A puberdade e a hipertensão arterial mostraram-se independentemente associadas ao aumento da espessura médio-intimal da carótida.

ABSTRACT Objective: To assess the carotid intima-media thickness and factors associated with cardiovascular disease in children and adolescents with chronic kidney disease. Material and methods: Observational, cross-sectional study carried out at the Universidade Federal de São Paulo (chronic kidney disease outpatient clinics) with 55 patients (60% males) with a median age of 11.9 years (I25-I75: 9.2-14.8 years). Of the 55 patients, 43 were on conservative treatment and 12 were on dialysis. Serum laboratory parameters (creatinine, uric acid, C-reactive protein, total cholesterol and fractions, and triglycerides), nutritional status (z-score of body mass index, z-score of height/age), body fat (fat percentage and waist circumference), and blood pressure levels were evaluated. The carotid intima-media thickness measure was evaluated by a single ultrasonographer and compared with percentiles established according to gender and height. Data collection was performed between May 2015 and March 2016. Results: Of the children and adolescents with chronic kidney disease, 74.5% (95% CI: 61.0; 85.3) showed an increase (>P95) in carotid intima-media thickness. In patients with stages I and II hypertension, 90.9% had increased carotid intima-media thickness. Nutritional status, body fat and laboratory tests were not associated with increased carotid intima-media thickness. After multivariate adjustment, only puberty (PR = 1.30, p = 0.037) and stages I and II arterial hypertension (PR = 1.42, p = 0.011) were independently associated with carotid intima-media thickness alterations. Conclusion: The prevalence of increased carotid thickness was high in children and adolescents with chronic kidney disease. Puberty and arterial hypertension were independently associated with increased carotid intima-media thickness.