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Rev Alerg Mex ; 64(2): 178-187, 2017.
Article in Spanish | MEDLINE | ID: mdl-28658726

ABSTRACT

BACKGROUND: Hypovitaminosis D has been associated with various chronic diseases such as infections, autoimmune diseases, chronic obstructive pulmonary disease, cancer and asthma Objective: The objective at hand is to determine the prevalence of vitamin D (VD) insufficiency and deficiency in adults with allergic asthma. OBJECTIVE: Objective: The objective at hand is to determine the prevalence of vitamin D (VD) insufficiency and deficiency in adults with allergic asthma. METHODS: Through a cross-sectional study, we analyzed corresponding data amongst 135 patients. VD concentration was categorized as sufficient (≥ 30 ng/mL), insufficient (21-29 ng/mL), and deficient (≤ 20 ng/mL). The level of VD deficiency was measured through chemo-luminescence. We estimated the prevalence of VD alterations and their respective confidence intervals at 95 % (CI 95 %). RESULTS: Within the analyzed population, there were 99/135 women (73.3 %); the mean age was 34.5 ± 10.3 years. The mean concentration of VD was 17.9 ± 6.9 ng/mL and the median was 17 ng/mL. The prevalence of VD insufficiency and deficiency was 25.2 % (CI 95 %, 18.6-33.2 %) and 71.1 % (CI 95 %, 62.9-78.1 %), respectively; VD concentrations ≤ 10 ng/mL had 13.3 % (CI 95 %, 8.5-20.2 %) and ≥ 30 ng/mL at 3.7 % (CI 95 %: 1.4-8.6 %). When we contrasted the men to the women, the median concentration of VD did not differ significantly (16 ng/mL vs. 18 ng/mL, p = 0.71). CONCLUSION: In this study, patients with allergic asthma had distinctively reduced VD concentration levels; future research will determine if and how VD affects the severity of asthma.


Antecedentes: La hipovitaminosis D ha sido asociada con diversas enfermedades crónicas como infecciones, enfermedades autoinmunes, enfermedad pulmonar obstructiva crónica, cáncer y asma. Objetivo: Determinar la prevalencia de insuficiencia y deficiencia de vitamina (VD) en adultos con asma alérgica. Métodos: Estudio transversal en el que se analizaron los datos de 135 pacientes. La concentración de VD fue categorizada en suficiente (≥ 30 ng/mL), insuficiente (21-29 ng/mL) y deficiente (≤ 20 ng/mL). La concentración de VD se midió por quimioluminiscencia. Se estimaron las prevalencias de las alteraciones de la VD y sus respectivos intervalos de confianza a 95 % (IC 95 %). Resultados: En la población analizada, 99 fueron mujeres (73.3 %), con edad media de 34.5 ± 10.3 años. La concentración media de VD fue 17.9 ± 6.9 ng/mL (mediana de 17 ng/mL). La prevalencia de insuficiencia y deficiencia de VD fue de 25.2 % (IC 95 %, 18.6-33.2 %) y 71.1 % (IC 95 %, 62.9-78.1 %), respectivamente; las concentraciones de VD ≤ 10 ng/mL representaron 13.3 % (IC 95 %, 8.5-20.2 %) y ≥ 30 ng/mL, 3.7 % (IC 95 %, 1.4-8.6 %). Al contrastar hombres y mujeres, la concentración mediana de VD no difirió significativamente (16 ng/mL versus 18 ng/mL, p = 0.71). Conclusiones: En este estudio, los pacientes con asma alérgica tuvieron concentraciones de VD notoriamente disminuidas. Con futuras investigaciones se podrá evaluar el papel de la VD en la gravedad del asma.


Subject(s)
Asthma/epidemiology , Vitamin D Deficiency/epidemiology , Adult , Allergens/adverse effects , Anti-Asthmatic Agents/therapeutic use , Asthma/diagnosis , Asthma/drug therapy , Bronchodilator Agents/therapeutic use , Comorbidity , Cross-Sectional Studies , Female , Humans , Male , Mexico/epidemiology , Middle Aged , Skin Tests , Spirometry , Vitamin D/analogs & derivatives , Vitamin D/blood , Vitamin D Deficiency/blood , Young Adult
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