2001
DOI: 10.1590/s0034-89102001000100009
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Minimizando perdas e maximizando eficiência na detecção de casos de desnutrição aguda severa

Abstract: Resumo ObjetivoAlguns dos muitos desafios enfrentados por epidemiologistas são planejar adequadamente e otimizar o processo de captação de sujeitos em termos de efetividade e eficiência. Nesse sentido, no contexto de um estudo caso-controle envolvendo desnutrição aguda severa, usa-se o procedimento de captação em duas etapas. Os objetivos da pesquisa são identificar o melhor ponto de corte do indicador de rastreamento e obter equilíbrio entre perdas, eficiência da desnutrição severa e uso do procedimento em du… Show more

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“…A two‐step measurement procedure was carried out in order to minimise the false diagnosis of SAM while minimising the measurement burden on the severely ill children. This two‐step procedure followed that of an ancillary study that found that confining rigorous weighing and measuring procedures solely to those children below the 10th centile, according to the weight‐for‐age index identified through routine anthropometrical evaluations, eliminated both SAM false‐negatives and false‐positives 61 . The false‐negatives were avoided at once since no ‘true’ cases of SAM could be found above the pre‐specified cut‐off point.…”
Section: Methodsmentioning
confidence: 99%
“…A two‐step measurement procedure was carried out in order to minimise the false diagnosis of SAM while minimising the measurement burden on the severely ill children. This two‐step procedure followed that of an ancillary study that found that confining rigorous weighing and measuring procedures solely to those children below the 10th centile, according to the weight‐for‐age index identified through routine anthropometrical evaluations, eliminated both SAM false‐negatives and false‐positives 61 . The false‐negatives were avoided at once since no ‘true’ cases of SAM could be found above the pre‐specified cut‐off point.…”
Section: Methodsmentioning
confidence: 99%