ABSTRACT
Introducción: La relación entre los factores ambientales y las exacerbaciones de enfermedades respiratorias ha sido ampliamente estudiada. No obstante, no existen estudios que analicen la relación entre la contaminación ambiental y las agudizaciones por bronquiectasias. El objetivo de nuestro estudio es analizar la asociación entre la contaminación ambiental y los ingresos por bronquiectasias. Material y métodos: Se trata de un estudio observacional y retrospectivo, realizado en 2 hospitales de Badalona. Se obtuvo el número de ingresos hospitalarios por agudización de bronquiectasias entre los años 2007 y 2015. Mediante regresión binomial negativa se analizó la posible influencia de la temperatura ambiental y los valores mensuales medios de dióxido de azufre (SO2), óxido nítrico, dióxido de nitrógeno, ozono y monóxido de carbono en el número de ingresos mensuales por bronquiectasias. Todos los p-valores se corrigieron por comparaciones múltiples. Resultados: Todos los factores analizados, pero especialmente la temperatura, se asociaron de forma estadísticamente significativa con el número de ingresos por exacerbación de bronquiectasias. Al controlar el efecto de la temperatura en las variables de contaminación, solamente el SO2 mantuvo la significación estadística (p=0,008). Conclusión: El número de ingresos hospitalarios por agudización de bronquiectasias parece ser mayor en los meses con bajas temperaturas y/o altas concentraciones de SO2. Se necesitan estudios prospectivos con diferentes áreas geográficas que confirmen estos resultados
Introduction: The relationship between environmental factors and the exacerbation of respiratory diseases has been widely studied. However, there are no studies examining the relationship between these factors and bronchiectasis exacerbations. Our objective was to analyse the association between various environmental factors and hospitalisation for bronchiectasis. Material and methods: This was a retrospective observational study conducted at two hospitals in Badalona (Barcelona). The number of hospital admissions for exacerbation of bronchiectasis between 2007 and 2015 was obtained. Through multiple regression we analysed the relationship between the number of exacerbations and mean monthly values of temperature, SO2, NO, NO2, O3 and CO. Results: Temperature, SO2, NO, NO2, O3 and CO were significantly associated with an increase in admissions due to exacerbation of bronchiectasis. By controlling the effect of temperature on the pollution variables, only SO2 maintained statistical significance (P=.008). Conclusion: We have detected an increase in hospital admissions for exacerbation of bronchiectasis with increases in the atmospheric concentration of SO2 and the decrease in temperature. Prospective studies with different geographical locations to confirm these results are needed
Subject(s)
Humans , Bronchiectasis/epidemiology , Environmental Pollution/adverse effects , Sulfur Dioxide/adverse effects , Hospitalization/statistics & numerical data , Symptom Flare Up , Risk Factors , Peak Temperature , Sulfur Dioxide/isolation & purification , Retrospective Studies , Nitrogen Dioxide/adverse effectsABSTRACT
INTRODUCTION: The relationship between environmental factors and the exacerbation of respiratory diseases has been widely studied. However, there are no studies examining the relationship between these factors and bronchiectasis exacerbations. Our objective was to analyse the association between various environmental factors and hospitalisation for bronchiectasis. MATERIAL AND METHODS: This was a retrospective observational study conducted at two hospitals in Badalona (Barcelona). The number of hospital admissions for exacerbation of bronchiectasis between 2007 and 2015 was obtained. Through multiple regression we analysed the relationship between the number of exacerbations and mean monthly values of temperature, SO2, NO, NO2, O3 and CO. RESULTS: Temperature, SO2, NO, NO2, O3 and CO were significantly associated with an increase in admissions due to exacerbation of bronchiectasis. By controlling the effect of temperature on the pollution variables, only SO2 maintained statistical significance (P=.008). CONCLUSION: We have detected an increase in hospital admissions for exacerbation of bronchiectasis with increases in the atmospheric concentration of SO2 and the decrease in temperature. Prospective studies with different geographical locations to confirm these results are needed.
