Journal ArticleDOI
Analysis of the relationships between environmental factors (aeroallergens air pollution and weather) and asthma emergency admissions to a hospital in Mexico City
Reads0
Chats0
TLDR
A statistical analysis of the relationships between emergency admissions for asthma to a hospital in Mexico City and daily average airborne concentrations of pollen, fungal spores, air pollutants, and weather factors suggests aeroallergens may be statistically associated more strongly with asthma hospital admissions than air pollutants.Abstract:
There have been several studies of the relationships between environmental factors, particularly air pollution, and attacks of asthma. Most of these studies have ignored the potential confounding effects of aeroallergens such as pollens and fungal spores. We report a statistical analysis of the relationships between emergency admissions for asthma to a hospital in Mexico City and daily average airborne concentrations of pollen, fungal spores, air pollutants (O3, NO2, SO2, and particulates) and weather factors. Asthma admissions had a seasonal pattern with more during the wet season (May-October) than the dry season (November-April). There were few statistical associations between asthma admissions and air pollutants for the three age groups studied (children under 15 years, adults, and seniors [adults over 59 years]) in either season. Grass pollen was associated with child and adult admissions for both the wet and dry seasons, and fungal spores were associated with child admissions during both the wet and dry seasons. The analysis was done with environmental data averaged over the day of admission and the 2 previous days. Our results suggest that aeroallergens may be statistically associated more strongly with asthma hospital admissions than air pollutants and may act as confounding factors in epidemiologic studies.read more
Citations
More filters
Journal ArticleDOI
The link between fungi and severe asthma: a summary of the evidence
TL;DR: The epidemiological evidence that associates severity of asthma with fungi is described, the case for the consideration of a new term related to this association is put forward and it is recognised that enhanced and precise definition of fungal sensitisation will require improvements in diagnostic testing.
Journal ArticleDOI
Adverse health effects of outdoor air pollutants.
TL;DR: A review of the health effects of major outdoor air pollutants including particulates, carbon monoxide, sulfur and nitrogen oxides, acid gases, metals, volatile organics, solvents, pesticides, radiation and bioaerosols is presented.
Journal ArticleDOI
Study of modifiable risk factors for asthma exacerbations: virus infection and allergen exposure increase the risk of asthma hospital admissions in children
Clare S. Murray,Gina Poletti,Tatiana Kebadze,Julie Morris,Ashley Woodcock,Sebastian L. Johnston,Adnan Custovic +6 more
TL;DR: Natural virus infection and real life allergen exposure in allergic asthmatic children increase the risk of hospital admission.
Journal ArticleDOI
Meteorological conditions, climate change, new emerging factors, and asthma and related allergic disorders. A statement of the World Allergy Organization
Gennaro D'Amato,Stephen T. Holgate,Ruby Pawankar,Dennis K. Ledford,Lorenzo Cecchi,Mona Al-Ahmad,Fatma Al-Enezi,Saleh Al-Muhsen,Ignacio J. Ansotegui,Carlos E. Baena-Cagnani,David J. Baker,Hasan Bayram,Karl Christian Bergmann,Louis-Philippe Boulet,Jeroen Buters,Maria D'Amato,Sofia Dorsano,Jeroen Douwes,Sarah Elise Finlay,Donata Garrasi,Maximiliano Gómez,Tari Haahtela,Rabih Halwani,Youssouf Hassani,Basam Mahboub,Guy B. Marks,Paola Michelozzi,Marcello Montagni,Carlos Nunes,Jay Jae-Won Oh,Todor A. Popov,Jay M. Portnoy,Erminia Ridolo,Nelson Rosario,Menachem Rottem,Mario Sánchez-Borges,Elopy Sibanda,Juan José Sienra-Monge,Carolina Vitale,Isabella Annesi-Maesano +39 more
TL;DR: Global warming is expected to affect the start, duration, and intensity of the pollen season, and the rate of asthma exacerbations due to air pollution, respiratory infections, and/or cold air inhalation, and other conditions on the other hand.
References
More filters
Journal ArticleDOI
An automatic volumetric spore trap
TL;DR: Estimates of spore content of the air can be made, with higher efficiency than by previous traps, at different times of day and thus be more closely correlated with variations in weather.
Journal ArticleDOI
Statistical Method in Biological Assay
TL;DR: Statistical Method in Biological AssayBy Dr. D. J. Finney.
Journal ArticleDOI
Effects of inhalable particles on respiratory health of children.
Douglas W. Dockery,Frank E. Speizer,Daniel O. Stram,James H. Ware,John D. Spengler,Benjamin G. Ferris +5 more
TL;DR: Examination of data from a second cross-sectional assessment of the association of air pollution with chronic respiratory health of children participating in the Six Cities Study of Air Pollution and Health suggests that children with hyperreactive airways may be particularly susceptible to other respiratory symptoms when exposed to these pollutants.
Journal ArticleDOI
Respiratory Hospital Admissions Associated with PM10 Pollution in Utah, Salt Lake, and Cache Valleys
TL;DR: It is suggested that PM10 pollution plays a role in the incidence and severity of respiratory disease.