Infant mortality showed important reduction in Brazil and in the world between 1990 and 2014, focusing mortality on neonatal deaths (50% of infant deaths, currently), which is less sensitive to the simplest direct interventions of child care. Brazil today has high neonatal mortality, unevenly divided between regions of the country. The main causes of neonatal mortality are preventable, and dependent on the acce...
Background: Cross-sectional studies are fundamental studies in the practice of epidemiological science. This article aims to present in detail the methodology for conducting a series of cross-sectional studies, as well as the analysis of data through pooled data. Methods: The series of studies are population cross-sectional studies, with statewide coverage, searching for representative sample of reproductive ag...
Background: Brazil presented an alarming number of newborns with microcephaly in the years 2015 and 2016. The investigation of the cases raised the suspicion of the association of these cases with maternal infections by the zika virus. Also, in 2015, there was an epidemic of zika virus infection in Brazil, reinforcing this hypothesis. Objective: The objective of this study was to identify factors associated wit...
Objective To assess the prevalence of child development delay and to identify socioeconomic determinants. Study design We conducted a population-based cross-sectional study of children 2 to 72 months of age residing in the state of Ceara ´, Brazil. In total, 3200 households were randomly selected for participation in the study and had child development assessed with the Ages and Stages Questionnaire (ASQ) versi...
Purpose: To evaluate the contribution of ursodeoxycholic acid (UDCA) in the first 12 months after Roux-en-Y gastric bypass in the prevention of gallstone formation. Methods: A community-based clinical trial was conducted. A total of 137 patients were included in the study; 69 were treated with UDCA, starting 30 days after the surgery, at a dose of 150 mg twice daily (300 mg/day) over a period of 5 consecutive m...
Objetivos: este estudo objetiva estimar as taxas, fatores associados e tendência das taxas de aborto no Nordeste do Brasil. Métodos: série de estudos transversais realizada no Ceará, um dos estados mais pobres do país. Uma amostra de cerca de 27000 mulheres em idade reprodutiva foi utilizada. A ocor- rência de aborto foi aferida através de informação dada pela participante e taxas foram calculadas usando estima...
Background Food insecurity has important effects on human health, particularly in children’s. It continues to increase, with an estimated prevalence of 14.9% in the USA and 35% in Brazil. There have been few studies on the effect of cash transfer programs (CTPs) on the prevalence of food security in Brazil. Objective Evaluate the association between cash transfer programs and reductions in inequity and food ins...
Purpose: To develop and test a model of teaching by means of an abdominal cavity simulator. Methods: This study had two stages: development of a teaching model and an experimental prospective study that aimed to evaluate the residents’ competence. The participants were divided into 3 groups: first-year resident, second-year resident, and senior surgeon. The two groups of resident physicians received training in...
Background: The choice between percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) remains controversial. Objective: To conduct a meta-analysis of randomized studies comparing drug-eluting stents (DES) and CABG in multivessel disease or obstruction of the left main coronary artery. Method: Electronic databases were searched systematically to evaluate results of randomized trials ...
Background This study was conducted to investigate changes in the clinical pattern of leptospirosis over time, analyzing its clinical and laboratory presentations in a metropolitan city of Brazil. Method This was a retrospective study including all patients with leptospirosis admitted to tertiary care hospitals in Fortaleza in the northeast of Brazil, between 1985 and 2015. Patients were divided into three grou...