Search Results - (Author, Cooperation:R. Chapela)

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  1. 1
    Staff View
    Publication Date:
    2014-06-14
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    African Continental Ancestry Group/genetics ; European Continental Ancestry Group/genetics ; *Genetic Variation ; Genome, Human ; Humans ; Indians, North American/*genetics ; Mexican Americans/*genetics ; Mexico ; Population/*genetics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Rosas, I. ; McCartney, H. A. ; Payne, R. W. ; Calderón, C. ; Lacey, J. ; Chapela, R. ; Ruiz-Velazco, S.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1998
    Staff View
    ISSN:
    1398-9995
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    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, NO3, SO3. 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.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses