Nora Montealegre

En este artículo se propone un metamodelo para el almacenamiento de datos de eventos de salud y de partículas PM2.5, en la ciudad de Medellín-Colombia. Se aborda el problema de la consolidación de datos a partir de fuentes heterogéneas. La solución que se presenta es una aproximación basada en modelos, donde los aspectos comunes se identifican para la construcción de una bodega de datos. Como resultado principal, se definió una capa de abstracción sobre los modelos conceptuales de material particulado y eventos de salud, y con ello se obtuvo un prototipo de bodega. A partir del trabajo realizado se puede concluir que el uso de un enfoque basado en modelos fortalece la toma de decisiones en políticas de salud pública y estrategias de gestión de calidad en salud.

Objetivo: Esta investigación buscó establecer la distribución espacial de la morbimortalidad atribuible a la contaminación del aire ambiental por materia particulada (particulate matter 2.5) (pm2.5) en Medellín entre 2010 y 2016. Métodos: Se planteó un estudio ecológico. Se estandarizaron las direcciones de residencia de los pacientes atendidos y las defunciones por eventos de interés. Se emplearon mapas de calor, mediante el análisis de densidad de Kernel, por núcleos domiciliarios para áreas de 10 000 m2. Resultados: Se encontraron 45 487 y 2743 casos y defunciones, respectivamente, atribuibles a la contaminación del aire ambiental por pm2.5 con datos de localización geográfica. La zona suroccidental de la ciudad presentó las mayores densidades de eventos atribuibles por todas las causas estudiadas y por grupo de eventos, con algunas áreas pequeñas en otros lugares. Por su parte, la zona suroriental, con las mejores condiciones socioeconómicas, manifestó la menor concentración de eventos atribuibles. Conclusión: La información geocodificada de la morbimortalidad por núcleos domiciliarios posibilitó establecer la distribución de casos y muertes atribuibles a la contaminación ambiental del aire por pm2.5 en Medellín, con mayor concentración al suroccidente de la ciudad, lo que permite evidenciar la presencia de disparidades territoriales de este fenómeno.

Introduction : The impact of PM2.5 ambient air pollution exposure on morbimortality has been documented; however, for Latin American cities, there are no calculations of the economic burden. The objective of the study was to estimate the costs of attributable burden disease to PM2.5 ambient air pollution exposure in Medellín, Colombia. Methods : The costs were assessed using the cost-of-illness approach and the human capital approach, which include direct medical costs and indirect costs due to loss of productivity. To estimate the value of the lost years of production the salaries established in the Great Integrated Household Survey carried out in September 2016 by the National Administrative Department of Statistics of Colombia were used. The PYWL were calculated taking as a reference the 57 years to age of death for female and 62 years for male. For both, an alternative scenario was proposed to account for the cost of working years by changing the reference age to 80 years. Results : A total of 5540 potential years of working life lost due to premature deaths attributed to exposure to PM2.5 was calculated. The costs of attributable morbimortality to PM2.5 exposure in Medellín totaled 86,0 million dollars in baseline scenario and 281,2 million dollars in alternative scenario. Which represented 0.091% of the gross domestic product of Colombia and 0.627% of that from the Department of Antioquia. The highest percentage of the costs associated with the loss of productivity originated in the premature death of the population over 50 years of age, both due to chronic and acute events. Discussion : The costs of mortality represented 80% of the total. PM2.5 ambient air pollution exposure generates significant costs associated with the loss of years of working life, due to acute infections and chronic diseases of respiratory tract and ischemic heart diseases

Introducción: El efecto deletéreo de material particulado fino exterior sobre la salud respiratoria de la población de niños y de adultos mayores, es de interés en salud pública. Objetivo: Establecer el efecto de la contaminación por Material Particulado de menos de 2,5 μm de diámetro (PM2,5), sobre la Enfermedad Respiratoria Aguda (ERA) en los menores de 5 y personas de mínimo 65 años, ajustado por variables meteorológicas y climáticas, en los municipios del Área Metropolitana del Valle de Aburrá (Colombia), 2008 a 2015. Materiales y métodos: Estudio ecológico con información de la red de vigilancia de calidad del aire y de registros de prestación de servicios de salud. Se construyeron Modelos Aditivos Generalizados con función de enlace Poisson y suavización spline. Para cada rezago distribuido se calculó la medida de la asociación e intervalo de confianza. Resultados: Los casos de ERA aumentaron significativamente en los menores de 5 años en Envigado y Caldas (43,3% vs 29,6%) y en los de 65 y más años, en Medellín (13,2%) por cada incremento de 10 µg/m3 en PM2.5 al día quince a partir de la exposición. Conclusiones: Los eventos diarios respiratorios tuvieron especial frecuencia en Medellín y en municipios de la zona sur.

Background: Exposure to 2.5-micron diameter air pollutants (PM2.5) has been associated with an increased risk of illness and death worldwide; however, in Latin American health impacts assessment of this risk factor is scarce. Medellín is one of the most polluted cities in the region, with a population growth rate that is twice as high as that of other Colombian cities, which implies a growing population at risk. Methods: A descriptive study of the disease burden was carried out using the city as the unit of observation. Health events were selected based on epidemiologic evidence and the availability of the population attributable fraction associated with PM2.5. The mortality records were taken from the module of deceased of the Single Registry of Affiliates of the Health System; the morbidity records were taken from the Individual Health Services Registries. For the estimation of the burden of disease, the current Global Burden of Disease guidelines were followed. Results: Attributable disability-adjusted life years to exposure to ambient PM2.5 pollution (DALYsPM2.5) constituted 13.8% of total burden of the city. Males showed the greatest loss of DALYsPM2.5 due to acute events, while in women the greatest loss was due to chronic events. Ischemic heart disease, chronic diseases of the lower respiratory tract, and influenza and pneumonia were the events that contributed the most to DALYsPM2.5. 71.4% of the DALYsPM2.5 corresponded to mortality, mainly in the population over 65 years of age. Regarding attributable morbidity, acute events were more prevalent in both sexes, especially due to respiratory diseases Conclusion: Premature death among the elderly population has the greatest weight on burden of disease attributable to ambient PM2.5 pollution, mainly due to respiratory and cardiovascular diseases, without significant differences according to gender.

Background: Exposure to 2.5-micron diameter air pollutants (PM2.5) has been associated with an increased risk of illness and death worldwide; however, in Latin American health impacts assessment of this risk factor is scarce. Medellín is one of the most polluted cities in the region, with a population growth rate that is twice as high as that of other Colombian cities, which implies a growing population at risk. Methods: A descriptive study of the disease burden was carried out using the city as the unit of observation. Health events were selected based on epidemiologic evidence and the availability of the population attributable fraction associated with PM2.5. The mortality records were taken from the module of deceased of the Single Registry of Affiliates of the Health System; the morbidity records were taken from the Individual Health Services Registries. For the estimation of the burden of disease, the current Global Burden of Disease guidelines were followed. Results: Attributable disability-adjusted life years to exposure to ambient PM2.5 pollution (DALYsPM2.5) constituted 13.8% of total burden of the city. Males showed the greatest loss of DALYsPM2.5 due to acute events, while in women the greatest loss was due to chronic events. Ischemic heart disease, chronic diseases of the lower respiratory tract, and influenza and pneumonia were the events that contributed the most to DALYsPM2.5. 71.4% of the DALYsPM2.5 corresponded to mortality, mainly in the population over 65 years of age. Regarding attributable morbidity, acute events were more prevalent in both sexes, especially due to respiratory diseases Conclusion: Premature death among the elderly population has the greatest weight on burden of disease attributable to ambient PM2.5 pollution, mainly due to respiratory and cardiovascular diseases, without significant differences according to gender.