Background: As a global public health problem, anemia affects more than 400 million women of reproductive age worldwide, mostly in Africa and India. In the DRC, the prevalence of this anemia has decreased slightly from 52.9% in 2007, to 46.4% in 2012 and 42.4% in 2019. However, there is considerable regional variation in its distribution. Methods: Based on the Bayesian Multilevel Spatial Ordinal Logistic Regression Model, we use the DHS-DRC II data to observe whether individual and environmental characteristics of the reproductive-age woman contribute to the development of anemia and the mapping of anemia in terms of residual spatial effects. Results: Age, pregnancy status, body mass index, education level, current breastfeeding, current marital status, contraceptive and insecticide-treated net use, source of drinking water supply, toilet/latrine use, and province of residence were the factors contributing to anemia in women of reproductive age in DRC. With Global Moran's I = -0.00279, p-value ≥ 0.05, the spatial distribution of anemia in women of reproductive age in DRC results from random spatial processes. Thus, the observed spatial pattern is completely random. Conclusion: The Bayesian Multilevel Spatial Ordinal Logistic Regression statistical model is able to adjust for risk and spatial factors of anemia in women of reproductive age in DRC. Keywords: Determinants and spatial factors, Anemia in women of reproductive age, Multilevel and spatial Bayesian ordinal logistic regression model.
Introduction : L'anémie constitue l'un des problèmes nutritionnels les plus courants et les plus difficiles à résoudre dans le monde. L'OMS de 2011 suggère que l'anémie a affecté environ 800 millions d'enfants et de femmes. Plus de la moitié des enfants des régions de l'Asie du Sud-Est et de l'Afrique (53,8% ou plus) sont anémiés dont la plus forte proportion (62,3%) provient de la Région africaine. La Banque mondiale estime sa prévalence chez les enfants d'Afrique subsaharienne à 67,8%, dont 63,9% en Afrique centrale. L'OMS et l'UNICEF insistent sur l'urgence de la combattre et soulignent l'importance d'en reconnaître l'étiologie multifactorielle, condition préalable pour que soient mis en oeuvre des programmes efficaces de contrôle. But de l'étude : Contribuer à l'amélioration de l'estimation des facteurs de risque de l'anémie des enfants en RDC dans une étude corrélationnelle transversale des données de l'EDS-RDC II. L'échantillon, basé sur un sondage aréolaire et stratifié au niveau des unités primaires, a été effectué avec probabilité proportionnelle dans 9.672 ménages des enfants de 6 à 59 mois éligibles au test d'hémoglobine pour diagnostiquer l'anémie par le système « HémoCue ». Résultats : La prévalence de l'anémie des enfants de 6 à 59 mois est de 59,78%. Le petit âge, l'anémie de la mère, le retard de croissance, la malnutrition aiguë, la fièvre, la diarrhée, le faible indice de bien-être économique des ménages et la province sont des facteurs de risque de l'anémie de l'enfant en RDC. Conclusion : Le Modèle des cotes proportionnelles partielles avec Poids d'échantillonnage des données complexes a été capable d'ajuster les facteurs de risque sur l'anémie des enfants de 6 à 59 mois en RDC. ABSTRACT.Introduction: Anemia is one of the most common and difficult nutritional problems in the world. The 2011 WHO suggests that anemia has affected approximately 800 million children and women. More than half of the children in the South-East Asia and Africa Regions (53.8% or more) are anemic, with the highest proportion (62.3%) coming from the African Region. The World Bank estimates its prevalence among children in sub-Saharan Africa at 67.8%, with 63.9% in Central Africa. WHO and UNICEF stress the urgency of combating it and emphasize the importance of recognizing its multifactorial etiology, a prerequisite for the implementation of effective control programs. Purpose of Study: Contribute to improving the estimation of risk factors for anemia in children in the DRC in a crosssectional correlational study of DHS-DRC II data. The sample, based on an aerial survey and stratified at the primary unit level, was proportionally sampled in 9,672 households of children aged 6-59 months eligible for hemoglobin testing for anemia by the "HémoCue" system. Results: The prevalence of anemia in children aged 6 to 59 months is 59.78%. Early age, maternal anemia, stunted growth, acute malnutrition, fever, diarrhea, low household economic well-being index and province are risk factors for child anemia in the DRC. Conclusion:The P...
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