ArticleEnvironmental health perspectives2009
The effects of fine particle components on respiratory hospital admissions in children.
Article in Environmental health perspectives, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 8 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
102 citing papers in PubMed, 8 syntheses or guidelines pooled it.
- Chemical constituents of PMEuropean journal of pediatrics · 2025Pooled it
- Pooled it
- Indoor Particulate Matter in Urban Households: Sources, Pathways, Characteristics, Health Effects, and Exposure Mitigation.International journal of environmental research and public health · 2021Pooled it
- Short-Term Exposure to Fine Particulate Matter and Hospitalizations for Acute Lower Respiratory Infection in Korean Children: A Time-Series Study in Seven Metropolitan Cities.International journal of environmental research and public health · 2020Pooled it
- Environmental Concerns for Children with Asthma on the Navajo Nation.Annals of the American Thoracic Society · 2018Pooled it
- The role of the PM2.5-associated metals in pathogenesis of child Mycoplasma Pneumoniae infections: a systematic review.Environmental science and pollution research international · 2016Pooled it
- A meta-analysis and multisite time-series analysis of the differential toxicity of major fine particulate matter constituents.American journal of epidemiology · 2012Pooled it
- Black carbon as an additional indicator of the adverse health effects of airborne particles compared with PM10 and PM2.5.Environmental health perspectives · 2011Pooled it
- Two-way fixed effects models in air pollution epidemiology: a proposed framework for model specifications and recommendations for future studies.American journal of epidemiology · 2026Article
- Impact of air pollution on exacerbations of respiratory and cardiovascular diseases for the intensivist: a narrative review.Intensive care medicine experimental · 2026Review
- RNAseq analysis demonstrates polarization state-dependent responses to ambient particulate matter in a particle composition-specific manner.Toxicological sciences : an official journal of the Society of Toxicology · 2026Article
- Article
- Characterization of the Chemical Composition, Cytotoxicity, and Metabolomic Effects of PMToxics · 2025Article
- Mass spectrometry analysis of PMAnalytical and bioanalytical chemistry · 2025Article
- Human Monocyte-Derived Macrophages Demonstrate Distinct Responses to Ambient Particulate Matter in a Polarization State- and Particle Seasonality-Specific Manner.Chemical research in toxicology · 2025Article
- Air quality and wheeze symptoms in a rural children's cohort near a drying saline lake.Environmental research · 2024Article
- Short-term effects of air pollutants on hospitalization for childhood respiratory diseases in Suzhou City: a time-stratified case-crossover study.Journal of health, population, and nutrition · 2024Article
- A co-created citizen science project on the short term effects of outdoor residential woodsmoke on the respiratory health of adults in the Netherlands.Environmental health : a global access science source · 2024Article
- Effects of weather and air pollution on outpatient visits for insect-and-mite-caused dermatitis: an empirical and predictive analysis.BMC public health · 2024Article
- Diesel exhaust particles induce polarization state-dependent functional and transcriptional changes in human monocyte-derived macrophages.American journal of physiology. Lung cellular and molecular physiology · 2024Article
42 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEpidemiologic studies have demonstrated an association between acute exposure to ambient fine particles and both mortality and morbidity. Less is known about the relative impacts of the specific chemical constituents of particulate matter<2.5 microm in aerodynamic diameter (PM2.5) on hospital admissions.
objectiveThis study was designed to estimate the risks of exposure to PM2.5 and several species on hospital admissions for respiratory diseases among children. DATA AND
methodsWe obtained data on daily counts of hospitalizations for children<19 and <5 years of age for total respiratory diseases and several subcategories including pneumonia, acute bronchitis, and asthma for six California counties from 2000 through 2003, as well as ambient concentrations of PM2.5 and its constituents, including elemental carbon (EC), organic carbon (OC), and nitrates (NO3). We used Poisson regression to estimate risks while controlling for important covariates.
resultsWe observed associations between several components of PM2.5 and hospitalization for all of the respiratory outcomes examined. For example, for total respiratory admissions for children<19 years of age, the interquartile range for a 3-day lag of PM2.5, EC, OC, NO3, and sulfates was associated with an excess risk of 4.1% [95% confidence interval (CI), 1.8-6.4], 5.4% (95% CI, 0.8-10.3), 3.4% (95% CI, 1.1-5.7), 3.3% (95% CI, 1.1-5.5), and 3.0% (95% CI, 0.4-5.7), respectively. We also observed associations for several metals. Additional associations with several of the species, including potassium, were observed in the cool season.
conclusionComponents of PM2.5 were associated with hospitalization for several childhood respiratory diseases including pneumonia, bronchitis, and asthma. Because exposure to components (e.g., EC, OC, NO3, and K) and their related sources, including diesel and gasoline exhaust, wood smoke, and other combustion sources, are ubiquitous in the urban environment, it likely represents an identifiable and preventable risk factor for hospitalization for children.
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