We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Influencia del dióxido de nitrógeno ambiental en las consultas a urgencias por asma en un entorno con baja contaminación: análisis de series temporales y casos cruzados.
- Authors
Albi, Tomás Ruiz; López-Izquierdo, Raúl; Cerezo-Hernández, Ana; Moreno, Fernando; Díez, Paloma Burgos; Álvarez, Daniel; Campo, Félix del
- Abstract
Objective. To analyze the association between atmospheric levels of nitrogen dioxide (NO2) and the number of visits by adults to an emergency department (ED) for exacerbated asthma in an urban area with low levels of air pollution. Methods. Retrospective ecological time-series study. We quantified ED visits for asthma by consecutive patients over the age of 14 years between 2010 and 2018 (3287 days). The association between the mean atmospheric concentration of NO2 and the number of daily visits to the ED for asthma was analyzed with generalized linear regression analysis (Poisson modeling). The impact of exposure on individual risk was assessed by crossover analysis of case periods. We adjusted for confounding meteorologic variables, potential variability due to seasonal changes was corrected by trend analysis, and 3 time lags were assessed (0, 1, and 3 days). Results. We analyzed 2527 asthma emergencies in 1588 patients (70% female) with a mean (SD) age of 51 (21) years. A significant positive association (relative risk, 1.056, 95% CI, 1.006--1.108; P < .05) between atmospheric NO2 concentration and greater risk of visiting an ED within 3 days was detected. An increase of 10 µg/m3 of NO2 accounted for 5.3% of the visits (attributable fraction, 5.30, 95% CI, 0.60--9.75; P < .05). Conclusion. In an urban area with low pollution levels, an elevation in atmospheric NO2 is associated with more hospital ED visits for asthma attacks in adults.
- Subjects
ASTHMA treatment; NITROGEN oxide analysis; AIR pollution; RELATIVE medical risk; HOSPITAL emergency services; ACQUISITION of data methodology; CONFIDENCE intervals; NITROGEN oxides; ECOLOGICAL research; RETROSPECTIVE studies; REGRESSION analysis; MEDICAL care use; TIME series analysis; MEDICAL records; DESCRIPTIVE statistics; METROPOLITAN areas; DISEASE exacerbation; POISSON distribution; ADULTS
- Publication
Emergencias, 2021, Vol 33, Issue 6, p421
- ISSN
1137-6821
- Publication type
Article