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      Validación de una escala de creencias sobre la adherencia al tratamiento con suplementos de hierro en madres de niños con anemia Translated title: Validation of a belief scale regarding adherence to iron supplementation treatment in mothers of children with anemia

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          Abstract

          Resumen Introducción: la anemia en los niños puede provocar deficiencias cognitivas y motoras que pueden conducir a dificultades en el rendimiento académico y la resistencia física, afectando a la salud y el bienestar. Objetivo: desarrollar y validar una escala de creencias sobre la adherencia al tratamiento con suplemento de hierro en madres de niños con anemia (ECATSH) que viven en una región de altitud del Perú. Métodos: se efectuó un estudio transversal en 192 madres de niños con anemia que viven en una región de elevada altitud del Perú. Se utilizó el modelo de creencias de salud (MCS) para desarrollar y validar la ECATSH. Para la validez del contenido se utilizó el análisis de juicio de expertos (V de Aiken) y para la validez del constructo, el análisis factorial exploratorio. La confiabilidad se determinó por consistencia interna. Resultados: en la validez del contenido, la prueba V de Aiken reflejó valores concordantes para la pertinencia (0,60 a 0,90), relevancia (0,75 a 0,95), claridad (0,80 a 0,90) y la escala total (0,75 a 0,92). Los valores de la alfa de Cronbach por pregunta oscilaron desde α = 0,70 hasta 0,81, y para la escala total fue de α = 0,75. El análisis factorial exploratorio (AFE) reflejó valores de Kaiser-Meyer-Olkin (KMO) de 0,733, la prueba de esfericidad de Bartlett indicó un valor de 968,680 (p < 0,001). Los valores propios en las cinco dimensiones reflejaron valores desde 1,05 hasta 4,03. El porcentaje de la varianza para el factor 1 (beneficios = 33,58 %), factor 2 (gravedad = 12,61 %), factor 3 (señales de acción = 10,78 %), factor 4 (barreras = 8,07 %), factor 5 (susceptibilidad = 7,63 %) y total de la escala fue de 74,12 %. Conclusión: el MCS es una herramienta útil que permitió validar la escala de creencias sobre la adherencia al tratamiento con suplemento de hierro en madres de niños con anemia que viven a elevada altitud del Perú.

          Translated abstract

          Abstract Introduction: anemia in children can cause cognitive and motor deficits that can lead to difficulties in academic performance, physical endurance, affecting health and well-being Objective: to develop and validate a scale of beliefs about adherence to iron supplementation treatment in mothers of children with anemia (SBAIST) living in a high altitude region of Peru. Methods: a cross-sectional study was conducted in 192 mothers of children with anemia living in a high altitude region of Peru. The Health Belief Model (HBM) was used to develop and validate the SBAIST. Expert judgment analysis (Aiken's V) was used for content validity and exploratory factor analysis for construct validity. Reliability was determined by internal consistency. Results: for content validity, Aiken's V test showed concordant values for relevance (0.60 to 0.90), relevance (0.75 to 0.95), clarity (0.80 to 0.90) and total scale (0.75 to 0.92). Cronbach's alpha values per question ranged from 〈 = 0.70 to 0.81, and for total scale was 〈 = 0.75. The exploratory factor analysis (EFA) reflected Kaiser-Meyer-Olkin (KMO) values of 0.733, Bartlett's test of sphericity indicated a value of 968.680 (p < 0.001). The eigenvalues in the five dimensions reflected values from 1.05 to 4.03. The percentage of variance for factor 1 (barriers = 33.58 %), factor 2 (severity = 12.61 %), factor 3 (action cues = 10.78 %), factor 4 (barriers = 8.07 %), factor 5 (susceptibility = 7.63 %), and for the total scale was 74.12 %. Conclusion: HBM is a useful tool that allowed validation of the scale of beliefs about adherence to iron supplementation treatment in mothers of children with anemia living at high altitude in Peru.

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          Structural Equations with Latent Variables

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            Starting at the beginning: an introduction to coefficient alpha and internal consistency.

            Cronbach's a is the most widely used index of the reliability of a scale. However, its use and interpretation can be subject to a number of errors. This article discusses the historical development of a from other indexes of internal consistency (split-half reliability and Kuder-Richardson 20) and discusses four myths associated with a: (a) that it is a fixed property of the scale, (b) that it measures only the internal consistency of the scale, (c) that higher values are always preferred over lower ones, and (d) that it is restricted to the range of 0 to 1. It provides some recommendations for acceptable values of a in different situations.
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              Global, regional, and national trends in haemoglobin concentration and prevalence of total and severe anaemia in children and pregnant and non-pregnant women for 1995–2011: a systematic analysis of population-representative data

              Summary Background Low haemoglobin concentrations and anaemia are important risk factors for the health and development of women and children. We estimated trends in the distributions of haemoglobin concentration and in the prevalence of anaemia and severe anaemia in young children and pregnant and non-pregnant women between 1995 and 2011. Methods We obtained data about haemoglobin and anaemia for children aged 6–59 months and women of childbearing age (15–49 years) from 257 population-representative data sources from 107 countries worldwide. We used health, nutrition, and household surveys; summary statistics from WHO's Vitamin and Mineral Nutrition Information System; and summary statistics reported by other national and international agencies. We used a Bayesian hierarchical mixture model to estimate haemoglobin distributions and systematically addressed missing data, non-linear time trends, and representativeness of data sources. We quantified the uncertainty of our estimates. Findings Global mean haemoglobin improved slightly between 1995 and 2011, from 125 g/L (95% credibility interval 123–126) to 126 g/L (124–128) in non-pregnant women, from 112 g/L (111–113) to 114 g/L (112–116) in pregnant women, and from 109 g/L (107–111) to 111 g/L (110–113) in children. Anaemia prevalence decreased from 33% (29–37) to 29% (24–35) in non-pregnant women, from 43% (39–47) to 38% (34–43) in pregnant women, and from 47% (43–51) to 43% (38–47) in children. These prevalences translated to 496 million (409–595 million) non-pregnant women, 32 million (28–36 million) pregnant women, and 273 million (242–304 million) children with anaemia in 2011. In 2011, concentrations of mean haemoglobin were lowest and anaemia prevalence was highest in south Asia and central and west Africa. Interpretation Children's and women's haemoglobin statuses improved in some regions where concentrations had been low in the 1990s, leading to a modest global increase in mean haemoglobin and a reduction in anaemia prevalence. Further improvements are needed in some regions, particularly south Asia and central and west Africa, to improve the health of women and children and achieve global targets for reducing anaemia. Funding Bill & Melinda Gates Foundation, Grand Challenges Canada, and the UK Medical Research Council.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                August 2022
                : 39
                : 4
                : 888-895
                Affiliations
                [1] Puno Puno orgnameUniversidad Nacional del Altiplano orgdiv1Escuela de Posgrado orgdiv2Doctorado en Ciencias de la Salud Peru
                [3] Puno Puno orgnameUniversidad Nacional del Altiplano orgdiv1Facultad de Ciencias de la Salud Peru
                [2] Santiago orgnameUniversidad Católica Silva Henríquez Chile
                [5] Talca Maule orgnameUniversidad Católica del Maule orgdiv1Departamento de Ciencias de la Actividad Física Chile
                [4] Talca Maule orgnameUniversidad Católica del Maule orgdiv1Departamento de Diversidad e Inclusividad Educativa Chile
                Article
                S0212-16112022000600021 S0212-1611(22)03900400021
                10.20960/nh.03938
                473190ef-81a8-48de-97da-a2b1d4063a1c

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 03 November 2021
                : 23 January 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 8
                Product

                SciELO Spain

                Categories
                Trabajos Originales

                Mothers,Escala de creencias,Anemia,Validez,Confiabilidad,Madres,Altitud,Belief scale,Validity,Reliability,Altitude

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