ArticleEnvironmental research2024
Pollen and viruses contribute to spatio-temporal variation in asthma-related emergency department visits.
Article in Environmental research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Etiological characterization of acute respiratory tract infections and associated co-infections using Biofire respiratory 2.1 Plus panel.BMC infectious diseases · 2026Article
- Rental housing may contribute to racial and ethnic disparities in upper respiratory infections.medRxiv : the preprint server for health sciences · 2026Article
- Wildfire smoke and pediatric asthma control in the Northeastern United States: a cross-sectional study.Environmental health : a global access science source · 2025Article
- Neighborhood disadvantage and the back-to-school epidemic of viral-associated asthma exacerbations.The Journal of allergy and clinical immunology · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
backgroundAsthma exacerbations are an important cause of emergency department visits but much remains unknown about the role of environmental triggers including viruses and allergenic pollen. A better understanding of spatio-temporal variation in exposure and risk posed by viruses and pollen types could help prioritize public health interventions.
objectiveHere we quantify the effects of regionally important Cupressaceae pollen, tree pollen, other pollen types, rhinovirus, seasonal coronavirus, respiratory syncytial virus, and influenza on asthma-related emergency department visits for people living near eight pollen monitoring stations in Texas.
methodsWe used age stratified Poisson regression analyses to quantify the effects of allergenic pollen and viruses on asthma-related emergency department visits.
resultsYoung children (<5 years of age) had high asthma-related emergency department rates (24.1 visits/1,000,000 person-days), which were mainly attributed to viruses (51.2%). School-aged children also had high rates (20.7 visits/1,000,000 person-days), which were attributed to viruses (57.0%), Cupressaceae pollen (0.7%), and tree pollen (2.8%). Adults had lower rates (8.1 visits/1,000,000 person-days) which were attributed to viruses (25.4%), Cupressaceae pollen (0.8%), and tree pollen (2.3%). This risk was spread unevenly across space and time; for example, during peak Cuppressaceae season, this pollen accounted for 8.2% of adult emergency department visits near Austin where these plants are abundant, but 0.4% in cities like Houston where they are not; results for other age groups were similar.
conclusionsAlthough viruses are a major contributor to asthma-related emergency department visits, airborne pollen can explain a meaningful portion of visits during peak pollen season and this risk varies over both time and space because of differences in plant composition.
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