Association between breastfeeding and intelligence, educational attainment, and income at 30 years of age: a prospective birth cohort study from Brazil

Background Breastfeeding has clear short-term benefi ts, but its long-term consequences on human capital are yet to be established. We aimed to assess whether breastfeeding duration was associated with intelligence quotient (IQ), years of schooling, and income at the age of 30 years, in a setting where no strong social patterning of breastfeeding exists. Methods A prospective, population-based birth cohort study of neonates was launched in 1982 in Pelotas, Brazil. Information about breastfeeding was recorded in early childhood. At 30 years of age, we studied the IQ (Wechsler Adult Intelligence Scale, 3rd version), educational attainment, and income of the participants. For the analyses, we used multiple linear regression with adjustment for ten confounding variables and the G-formula. Findings From June 4, 2012, to Feb 28, 2013, of the 5914 neonates enrolled, information about IQ and breastfeeding duration was available for 3493 participants. In the crude and adjusted analyses, the durations of total breastfeeding and predominant breastfeeding (breastfeeding as the main form of nutrition with some other foods) were positively associated with IQ, educational attainment, and income. We identifi ed dose-response associations with breastfeeding duration for IQ and educational attainment. In the confounder-adjusted analysis, participants who were breastfed for 12 months or more had higher IQ scores (diff erence of 3·76 points, 95% CI 2·20–5·33), more years of education (0·91 years, 0·42–1·40), and higher monthly incomes (341·0 Brazilian reals, 93·8–588·3) than did those who were breastfed for less than 1 month. The results of our mediation analysis suggested that IQ was responsible for 72% of the eff ect on income. Interpretation Breastfeeding is associated with improved performance in intelligence tests 30 years later, and might have an important eff ect in real life, by increasing educational attainment and income in adulthood

A avaliação no âmbito do conselho de classe nas séries iniciais do ensino fundamental

Este trabalho discursa sobre a Avaliação Escolar e o Conselho de Classe como instância avaliativa do trabalho pedagógico escolar. Considera que a prática da avaliação escolar emerge da concepção de educação. Tem como objetivo conhecer o processo de avaliação realizado pelos Conselhos Escolares de escolas do Distrito Federal e propor sugestões para que elas garantam o padrão de qualidade do ensino e a igualdade de condições de acesso e permanência do aluno na escola. É uma a pesquisa de caráter teórico e empírico. A pesquisa empírica foi realizada, utilizando-se de um questionário aberto, que foi respondido por vinte professores de cinco escolas do Distrito Federal. Da análise dos resultados e do que dizem os autores, como: Luckesi (1996, 1997, 2002, 2003); Perrenoud (1999) e outros, constatamos que a avaliação escolar costumava ser pensada e praticada em termos de seleção e classificação. No entanto, hoje pensamos em avaliação em termos de potencial para o aprendizado. Não há avaliação se ela não trouxer um diagnóstico que contribua para melhorar a aprendizagem. Esta é a razão pela qual avaliamos. A pesquisa mostrou que a prática da avaliação apresenta abordagens diferentes: a avaliação tradicional e a avaliação formativa. Neste sentido, o Conselho de Classe torna-se um espaço privilegiado da prática avaliativa, verdadeiramente formativa de caráter coletivo, baseando-se na perspectiva de interestruturação do conhecimento, entendendo a ação de avaliar como processual e reveladora das possibilidades de construção de um processo educativo mais rico, dinâmico e significativo

Microcephaly in Pernambuco State, Brazil: epidemiological characteristics and evaluation of the diagnostic accuracy of cutoff points for reporting suspected cases.

The increase in the number of reported cases of microcephaly in Pernambuco State, and Northeast Brazil, characterized an epidemic that led the Brazilian Ministry of Health to declare a national public health emergency. The Brazilian Ministry of Health initially defined suspected cases as newborns with gestational age (GA) ≥ 37 weeks and head circumference (HC) ≤ 33cm, but in December 2015 this cutoff was lowered to 32cm. The current study aimed to estimate the accuracy, sensitivity, and specificity of different cutoff points for HC, using ROC curves, with the Fenton and Intergrowth (2014) curves as the gold standard. The study described cases reported in Pernambuco from August 8 to November 28, 2015, according to sex and GA categories. The Fenton and Intergrowth methods provide HC growth curves according to GA and sex, and microcephaly is defined as a newborn with HC below the 3rd percentile in these distributions. Of the 684 reported cases, 599 were term or post-term neonates. For these, the analyses with ROC curves show that according to the Fenton criterion the cutoff point with the largest area under the ROC curve, with sensitivity greater than specificity, is 32cm for both sexes. Using the Intergrowth method and following the same criteria, the cutoff points are 32cm and 31.5cm for males and females, respectively. The cutoff point identified by the Fenton method (32cm) coincided with the Brazilian Ministry of Health recommendation. Adopting Intergrowth as the standard, the choice would be 32cm for males and 31.5cm for females. The study identified the need to conduct critical and on-going analyses to evaluate cutoff points, including other characteristics for microcephaly case definition

Lesion topographies in multiple sclerosis diagnosis

To assess the contributions of cortico-juxtacortical and corpus callosum lesions to multiple sclerosis diagnosis and to compare the value of ≥1 vs ≥3 periventricular lesions in clinically isolated syndromes (CIS). Step 1: We evaluated lesion topography classifications in 657 patients with CIS with stepwise Cox proportional hazards regression models considering second attack as the outcome. Step 2: We established 2 dissemination in space (DIS) versions according to the periventricular lesion cutoffs of ≥1 and ≥3 and assessed their performance at 10 years with second attack as the outcome, first individually and then combined with dissemination in time (DIT) in all cases (n = 326), by age, and by CIS topography. Step 1: The models (hazard ratios [95% confidence interval]) favored ≥1 over ≥3 periventricular lesions (2.5 [1.7-3.6]) and cortico-juxtacortical over juxtacortical lesions (1.4 [1.0-1.8]). Callosal lesions were not selected. Step 2: DIS specificity with ≥1 periventricular lesions was slightly lower than with ≥3 (59.1 vs 61.4) and the same after adding DIT (88.6). Regarding age, ≥3 periventricular lesions improved DIS specificity over ≥1 lesions in the 40-49 years of age bracket (66.7 vs 58.3). This difference disappeared when adding DIT (83.3). Optic neuritis had a similar pattern when evaluating CIS topographies. Our results comply with the Magnetic Resonance Imaging in Multiple Sclerosis (MAGNIMS) consensus recommendation of combining cortical and juxtacortical lesions into a single term when possible. Concerning periventricular lesions, maintaining the current ≥1 cutoff in the McDonald criteria does not compromise specificity in typical CIS cases, but attention should be paid to older patients or optic neuritis cases

The long-term outcomes of CIS patients in the Barcelona inception cohort : Looking back to recognize aggressive MS

Altres ajuts: This study has been funded by European Regional Development Fund and co-funded by Instituto Carlos III. It has also received support by a grant from Genzyme foundation (GENZYME-2015-01) granted to M.T. and from the 'Red Española de Esclerosis Múltiple (REEM)', which is sponsored by FIS, the Instituto de Salud Carlos III, the Ministry of Economy and Competitiveness in Spain, and the 'Ajuts per donar Suport als Grups de Recerca de Catalunya', which is sponsored by the 'Agència de Gestió d'Ajuts Universitaris i de Recerca' (AGAUR) of the Generalitat de Catalunya in Spain.To explore the long-term outcomes of patients with clinically isolated syndromes from the Barcelona cohort. We selected patients with a follow-up longer than 10 years to (1) estimate the risks of multiple sclerosis (MS) and disability accumulation according to the baseline number of T2 lesions and to compare treated versus untreated patients and early versus delayed treatment, and (2) to study baseline features of patients with aggressive MS (Expanded Disability Status Scale (EDSS) ⩾6.0 at 10 years). In all, 401 patients were included (mean follow-up of 14.4 (standard deviation of 2.9) years). A higher number of T2 lesions was associated with an earlier MS diagnosis and an earlier risk of irreversible disability. Early treatment was associated with a decreased risk of EDSS of 3.0: adjusted hazard ratio = 0.4, 95% confidence interval = (0.2, 0.7). Patients with aggressive MS differed in their baseline brain magnetic resonance images: The median (interquartile range) number of T2 lesions and contrast-enhancing lesions (CEL) was 71 (28-95) versus 7 (1-19) and 3 (1-24) versus 0 (0-1), respectively. The cut-offs that better classified patients with aggressive MS were 20 for T2 lesions and 2 for CEL. Although MS natural history is changing, a high lesion load at onset is helpful to identify patients at risk of presenting an aggressive MS