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      Risk of vitamin D deficit in asthmatic children hospitalized in the north area of Santiago Translated title: Riesgo de déficit de vitamina D en niños asmáticos hospitalizados en el área norte de Santiago

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          Abstract

          Abstract Introduction: in recent years asthma hospitalization rate in Chilean children has doubled. Numerous studies have shown an association between hypovitaminosis D and frequent, severe asthmatic exacerbations in children. Objective: to estimate the risk of vitamin D (vitD) deficiency and insufficiency in hospitalized asthmatic children compared with patients who are monitored on an outpatient basis and do not have records of hospitalization in one year. Material and methods: an observational, analytic, and case-control study carried out in one calendar year including asthmatic children between 5 and 15 years of age. This study registered: sociodemographic and clinical data, asthma control test, severity score of hospitalization and measurements of vitD blood levels. Associations between variables were analyzed using the t-test and chi-squared test. The risk for hypovitaminosis D and deficiency was calculated through logistic regression. The data was fed into the Stata 14 software. Results: a total of 117 patients, 9 ± 2.7 years old, were admitted, 64 % were male and 51 % presented with malnutrition by excess. Six out of ten children presented moderate asthma and 55 % had a poor control of their pathology; 73.5 % presented hypovitaminosis D (insufficiency and deficiency), hospitalized patients had 2.8 times more risk of presenting vitD deficiency, adjusted according to seasonality and age (95 %CI, 1.07-7.5, p < 0.05) without being associated with a higher severity score of hospitalization. Conclusion: most of the asthmatic children in the sample presented with hypovitaminosis D, with a higher percentage of deficiency in hospitalized patients, which is not associated with greater severity of hospitalization.

          Translated abstract

          Resumen Introducción: la tasa de hospitalización por asma se ha duplicado en los últimos años en Chile. Numerosos estudios demuestran una asociación entre la hipovitaminosis D y la presencia de exacerbaciones frecuentes y severas. Objetivo: comparar el riesgo de déficit e insuficiencia de vitamina D (vitD) en niños asmáticos que se hospitalizan en relación con los que se tratan ambulatoriamente. Material y métodos: estudio observacional, analítico, de casos y controles realizado durante 1 año calendario. Se incluyó a pacientes asmáticos de 5 a 15 años. Se registraron datos sociodemográficos, clínicos, nivel de control de asma, puntaje de severidad de hospitalización y se midió la concentración sanguínea de vitD. Se analizó la asociación entre las variables mediante la prueba de la t y la del chi cuadrado. Mediante regresión logística se calculó el riesgo de hipovitaminosis D y déficit de vitD en los sujetos. Los datos se analizaron con el software Stata 14. Resultados: se enrolaron 117 pacientes de 9 ± 2,7 años, 64 % de varones y 51 % con malnutrición por exceso. Seis de cada diez niños presentaban asma moderada y el 55 % tenían mal control de su enfermedad. El 73,5 % de los sujetos presentaban hipovitaminosis D (déficit o insuficiencia). Los hospitalizados tuvieron 2,8 veces más riesgo de presentar déficit de vitD (IC 95 %: 1,07-7,5), ajustado según estacionalidad y edad, sin asociarse a mayor puntaje de severidad de la hospitalización. Conclusión: la mayoría de los niños asmáticos de la muestra presentan hipovitaminosis D, siendo mayor el porcentaje de déficit en los hospitalizados, lo que no se asocia a mayor severidad de la hospitalización.

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          Most cited references29

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          Vitamin D Deficiency

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            Vitamin D for health: a global perspective.

            It is now generally accepted that vitamin D deficiency is a worldwide health problem that affects not only musculoskeletal health but also a wide range of acute and chronic diseases. However, there remains cynicism about the lack of randomized controlled trials to support the association studies regarding the nonskeletal health benefits of vitamin D. This review was obtained by searching English-language studies published up to April 1, 2013, in PubMed, MEDLINE, and the Cochrane Central Register of Controlled Trials (search terms: vitamin D and supplementation) and focuses on recent challenges regarding the definition of vitamin D deficiency and how to achieve optimal serum 25-hydroxyvitamin D concentrations from dietary sources, supplements, and sun exposure. The effect of vitamin D on fetal programming epigenetics and gene regulation could potentially explain why vitamin D has been reported to have such wide-ranging health benefits throughout life. There is potentially a great upside to increasing the vitamin D status of children and adults worldwide for improving musculoskeletal health and reducing the risk of chronic illnesses, including some cancers, autoimmune diseases, infectious diseases, type 2 diabetes mellitus, neurocognitive disorders, and mortality. Copyright © 2013 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.
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              Vitamin D supplementation guidelines.

              Research carried out during the past two-decades extended the understanding of actions of vitamin D, from regulating calcium and phosphate absorption and bone metabolism to many pleiotropic actions in organs and tissues in the body. Most observational and ecological studies report association of higher serum 25-hydroxyvitamin D [25(OH)D] concentrations with improved outcomes for several chronic, communicable and non-communicable diseases. Consequently, numerous agencies and scientific organizations have developed recommendations for vitamin D supplementation and guidance on optimal serum 25(OH)D concentrations. The bone-centric guidelines recommend a target 25(OH)D concentration of 20ng/mL (50nmol/L), and age-dependent daily vitamin D doses of 400-800IU. The guidelines focused on pleiotropic effects of vitamin D recommend a target 25(OH)D concentration of 30ng/mL (75nmol/L), and age-, body weight-, disease-status, and ethnicity dependent vitamin D doses ranging between 400 and 2000IU/day. The wise and balanced choice of the recommendations to follow depends on one's individual health outcome concerns, age, body weight, latitude of residence, dietary and cultural habits, making the regional or nationwide guidelines more applicable in clinical practice. While natural sources of vitamin D can raise 25(OH)D concentrations, relative to dietary preferences and latitude of residence, in the context of general population, these sources are regarded ineffective to maintain the year-round 25(OH)D concentrations in the range of 30-50ng/mL (75-125nmol/L). Vitamin D self-administration related adverse effects, such as hypercalcemia and hypercalciuria are rare, and usually result from taking extremely high doses of vitamin D for a prolonged time.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                April 2023
                : 40
                : 2
                : 273-279
                Affiliations
                [2] Santiago Santiago de Chile orgnameUniversidad de Chile orgdiv1Instituto de Nutrición y Tecnología de los Alimentos (INTA) Chile
                [4] Santiago orgnameHospital Dr. Roberto del Río Chile
                [1] Santiago Santiago de Chile orgnameUniversidad de Chile orgdiv1Hospital Clínico de la Universidad de Chile. Facultad de Medicina orgdiv2Department of Pediatrics and Pediatric Surgery Chile
                [3] Santiago orgnameUniversidad de los Andes orgdiv1Facultad de Medicina orgdiv2Clínica Santa María Chile
                Article
                S0212-16112023000300006 S0212-1611(23)04000200006
                10.20960/nh.04249
                d404f504-942e-4516-b359-eb713263919e

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

                History
                : 21 May 2022
                : 15 November 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 7
                Product

                SciELO Spain

                Categories
                Original Papers

                Asthma,Vitamin D,Vitamin D deficiency,Children,Asma,Vitamina D,Deficiencia de vitamina D,Niños

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