A beneficial effect of periodic vitamin A supplementation on childhood mortality has been demonstrated, but the effect on morbidity is less clear. We investigated the effect of vitamin A supplementation on diarrhoea and acute lower-respiratory-tract infections (ALRI) in children from northeastern Brazil in a randomised, double-blind, placebo-controlled community trial. 1240 children aged 6-48 months were assigned vitamin A or placebo every 4 months for 1 year. They were followed up at home three times a week, and data about the occurrence and severity of diarrhoea and ALRI were collected. Any child with cough and respiratory rate above 40 breaths per min was visited by a paediatrician. The overall incidence of diarrhoea episodes was significantly lower in the vitamin-A-supplemented group than in the placebo group (18.42 vs 19.58 x 10(-3) child-days; rate ratio 0.94 [95% Cl 0.90-0.98]). The benefit of supplementation was greater as regards severe episodes of diarrhoea; the incidence was 20% lower in the vitamin A group than in the placebo group (rate ratio 0.80 [0.65-0.98]). With the standard definition of diarrhoea (> or = 3 liquid or semi-liquid stools in 24 h) the effect of vitamin A on mean daily prevalence did not reach significance, but as the definition of diarrhoea was made more stringent (increasing number of stools per day), a significant benefit became apparent, reaching for diarrhoea with 6 or more liquid or semi-liquid stools in 24 h a 23% lower prevalence. We found no effect of vitamin A supplementation on the incidence of ALRI. The reduction in severity of diarrhoea may be the most important factor in the lowering of mortality by vitamin A supplementation.

ObjectiveTo evaluate the implementation of a programme to provide primary care physicians for remote and deprived populations in Brazil.MethodsThe Mais Médicos (More Doctors) programme was launched in July 2013 with public calls to recruit physicians for priority areas. Other strategies were to increase primary care infrastructure investments and to provide more places at medical schools. We conducted a quasi-experimental, before-and-after evaluation of the implementation of the programme in 1708 municipalities with populations living in extreme poverty and in remote border areas. We compared physician density, primary care coverage and avoidable hospitalizations in municipalities enrolled (n = 1450) and not enrolled (n = 258) in the programme. Data extracted from health information systems and Ministry of Health publications were analysed.FindingsBy September 2015, 4917 physicians had been added to the 16 524 physicians already in place in municipalities with remote and deprived populations. The number of municipalities with ≥ 1.0 physician per 1000 inhabitants doubled from 163 in 2013 to 348 in 2015. Primary care coverage in enrolled municipalities (based on 3000 inhabitants per primary care team) increased from 77.9% in 2012 to 86.3% in 2015. Avoidable hospitalizations in enrolled municipalities decreased from 44.9% in 2012 to 41.2% in 2015, but remained unchanged in control municipalities. We also documented higher infrastructure investments in enrolled municipalities and an increase in the number of medical school places over the study period.ConclusionOther countries having shortages of physicians could benefit from the lessons of Brazil’s programme towards achieving universal right to health.

BackgroundObesity is a global public health problem and a risk factor for several diseases that financially impact healthcare systems.ObjectiveTo estimate the direct costs attributable to obesity (body mass index {BMI} ≥ 30 kg/m2) and morbid obesity (BMI ≥ 40 kg/m2) in adults aged ≥ 20 incurred by the Brazilian public health system in 2011.SettingsPublic hospitals and outpatient care.MethodsA cost-of-illness method was adopted using a top-down approach based on prevalence. The proportion of the cost of each obesity-associated comorbidity was calculated and obesity prevalence was used to calculate attributable risk. Direct healthcare cost data (inpatient care, bariatric surgery, outpatient care, medications and diagnostic procedures) were extracted from the Ministry of Health information systems, available on the web.ResultsDirect costs attributable to obesity totaled US$ 269.6 million (1.86% of all expenditures on medium- and high-complexity health care). The cost of morbid obesity accounted for 23.8% (US$ 64.2 million) of all obesity-related costs despite being 18 times less prevalent than obesity. Bariatric surgery costs in Brazil totaled US$ 17.4 million in 2011. The cost of morbid obesity in women was five times higher than it was in men.ConclusionThe cost of morbid obesity was found to be proportionally higher than the cost of obesity. If the current epidemic were not reversed, the prevalence of obesity in Brazil will increase gradually in the coming years, as well as its costs, having serious implications for the financial sustainability of the Brazilian public health system.

Food and nutrition are basic requirements for the promotion and protection of health. Nutrition monitoring and dietary recommendations are included in the mission of the Unified Health System (SUS, in its Portuguese acronym), as established by the Organic Health Law no. 8,080 of 1990. This article presents and discusses the food and nutrition agenda of the SUS and its interface with Food and Nutrition Security, its benchmarks, progress and challenges. This essay was guided by biographical and documentary research and, above all, by the experiences and perceptions of the authors, who, at various times and in various contexts, have been and continue to be actors of Brazil's food and nutrition agenda. We emphasise the idea of the SUS, with its accomplishments and shortcomings, as a living system derived from the technical, ethical and political commitments of its administrators, workers, academics and society as a whole. Thus, we seek to contribute to the debate about the Brazilian path to the construction of a public social welfare system committed to health and adequate nutrition as a human rights.

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OBJETIVO: Avaliar a magnitude, a distribuição espacial e a tendência temporal da anemia em pré-escolares no Estado da Paraíba, Brasil. MÉTODOS: Corte transversal com amostra aleatória, do tipo multietapas, em oito cidades da zona urbana, de três mesorregiões do Estado da Paraíba, no ano de 1992, pela qual foram selecionados aleatoriamente 1.287 pré-escolares de ambos os sexos. A hemoglobina foi dosada pelo método da cianometa-hemoglobina em sangue venoso, empregando <11,0 g/dl como ponto de corte para anemia. A análise estatística de proporções incluiu o teste do qui-quadrado e a de médias, os de Mann-Whitney e Kruskal-Wallis, com intervalo de confiança de 95%. RESULTADOS: A prevalência da anemia no Estado da Paraíba foi de 36,4% (IC 33,7-39,1), maior (p= 0,00) do que a de 1982, que foi de 19,3% (IC 17,3-21,5). Apenas 1,0% (IC 0,6-1,8) e 6,8% (IC 5,5-8,3) dos casos de anemia foram categorizados nas formas grave e moderada, respectivamente. Crianças do sexo masculino apresentaram concentrações médias de hemoglobina mais baixas (p=0,00), e crianças menores de três anos constituíram o grupo biológico de maior suscetibilidade ao desenvolvimento do quadro carencial (p=0,00). O segundo ano de vida mostrou-se como o período vital mais crítico à exacerbação da deficiência nutricional (p=0,00). A mesorregião do Agreste configurou-se como o espaço geográfico de maior risco (p=0,00), desenhando uma outra dinâmica epidemiológica do problema, comparada àquela de 1982, em que a mesorregião do Sertão representava a área geográfica de maior risco para a deficiência. CONCLUSÕES: Os resultados mostraram que a anemia é um problema de saúde pública do tipo moderado, segundo os critérios internacionais para caracterizar a endemia em escala epidemiológica. Admitindo-se a comparabilidade entre os dois cortes transversais em análise, concluiu-se pelo caráter evolutivo ascendente na prevalência da anemia nutricional (+88,5%) em todas as três mesorregiões, no período de 10 anos, entre 1982-1992.

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