Diagnostic accuracy comparison between clinical signs and hemoglobin color scale as screening methods in the diagnosis of anemia in children



Document title: Diagnostic accuracy comparison between clinical signs and hemoglobin color scale as screening methods in the diagnosis of anemia in children
Journal: Revista brasileira de saude materno infantil
Database: PERIÓDICA
System number: 000280881
ISSN: 1519-3829
Authors: 1
Institutions: 1Universidade Federal de Pernambuco, Recife, Pernambuco. Brasil
Year:
Season: Abr-Jun
Volumen: 6
Number: 2
Pages: 183-189
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Descriptivo
English abstract OBJECTIVES: to compare the validity and reproducibility of clinical signs with the World Health Organization hemoglobin color scale. METHODS: Two hundred six children in the age range of 6-23 months, at the Instituto Materno Infantil Prof. Fernando Figueira, IMIP, were assessed. Two examiners evaluated the clinical signs and the hemoglobin color scale of each child at the different times. The hemoglobin value was used as a standard for validation. RESULTS: in more than 90% of cases the agreement between the values of the color scale and the laboratorial hemoglobin was <2 g/dL. Between the clinical signs the highest sensitivity level for diagnosing Hb<11 g/dL was presented by the hemoglobin color scale (75.7%). For moderate/severe anemia Hb<9g/dL the highest sensitivity was shown by combined palmar or conjunctival pallor (74.3%) and by the color scale (52.5%), according to the first and second observer, respectively. The highest specificity level for Hb<11 g/dL was presented by palmar pallor in comparison with the mother's palm and conjunctival pallor (100%). For Hb<9 g/dL the highest specificity was presented by the hemoglobin color scale (91.9%). CONCLUSIONS: this study suggests that moderate/severe anemia can be diagnosed either by clinical signs or by the color scale, while, in cases of mild anemia, the better diagnosis tool appears to be the color scale
Portuguese abstract OBJETIVOS: comparar a validade e reprodutibilidade dos sinais clínicos (palidez palmar e conjuntival) com a escala de cores da hemoglobina da Organização Mundial de Saúde. MÉTODOS: pesquisa realizada em 206 crianças de 6-23 meses, atendidas nos ambulatórios de puericultura e pediatria do Instituto Materno Infantil Prof. Fernando Figueira, IMIP. Os sinais clínicos e a escala de cores da hemoglobina foram avaliados por dois observadores em diferentes momentos. A validação foi realizada utilizando-se a hemoglobina como padrão. RESULTADOS: em mais de 90% dos casos, a concordância entre os valores da escala de cores e da hemoglobina laboratorial encontravam-se em <2 g/dL. Entre os sinais clínicos e a escala de cores, a maior sensibilidade para diagnosticar anemia (Hb<11 g/dL) foi apresentada pela escala de cores da hemoglobina (75,7%) e na anemia moderada/grave (Hb<9 g/dL), pela palidez palmar ou de conjuntiva ocular combinadas (74,3%) e pela escala de cores (52,5%), para o primeiro e segundo examinadores, respectivamente. A maior especificidade foi apresentada na palidez palmar comparada à palma da mãe e palidez de conjuntiva (100%) para Hb<11 g/dL e a escala de cores da hemoglobina (91,9%) para a Hb<9 g/dL. CONCLUSÕES: o presente estudo sugere que o diagnóstico da anemia moderada/grave seja possível através dos sinais clínicos e da escala de cores e, no caso da anemia leve, o melhor instrumento parece ser a escala de cores
Disciplines: Medicina
Keyword: Diagnóstico,
Hematología,
Pediatría,
Anemia,
Hemoglobina,
Niños,
Color,
Brasil
Keyword: Medicine,
Diagnosis,
Hematology,
Pediatrics,
Anemia,
Hemoglobin,
Brazil,
Children,
Color
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