ArticleInternational journal of biometeorology2017
Pollen exposure and hospitalization due to asthma exacerbations: daily time series in a European city.
Article in International journal of biometeorology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06705764 (Tezepelumab in the Treatment of Emergency Room Asthma in Adults), which is not on this map. Cited by 38 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Tezepelumab in the Treatment of Emergency Room Asthma in Adults (TERAA): A Phase 4 Double-Blinded, Parallel-Group, Randomized Control Trial With an Open Label Extension
Who cites it
38 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Short term physician visits and medication prescriptions for allergic disease associated with seasonal tree, grass, and weed pollen exposure across the United States.Environmental health : a global access science source · 2021Pooled it
- Short-term exposure to pollen and the risk of allergic and asthmatic manifestations: a systematic review and meta-analysis.BMJ open · 2020Pooled it
- Trial
- Hay Fever Symptom Burden From Grass Pollen: Implications for Public Health Warning Thresholds.GeoHealth · 2026Article
- Effect of ambient relative humidity and particulate matter on the levels of asthma therapy.The World Allergy Organization journal · 2026Article
- Estimating Daily Taxon-specific Tree Pollen at a 1-km Resolution in Atlanta, GA from 2020 to 2024.bioRxiv : the preprint server for biology · 2026Article
- Insights and applications for understanding the allergology, immunology and biotechnology of plant systems.Molecular biology reports · 2026Review
- The Association of Childhood Allergic Diseases with Prenatal Exposure to Pollen Grains Through At-Birth DNA Methylation.Epigenomes · 2025Article
- Impact of Demographic and Clinical Subgroups in Google Trends Data: Infodemiology Case Study on Asthma Hospitalizations.Journal of medical Internet research · 2025Article
- Pollen exposures in pregnancy and early life are associated with childhood asthma incidence.The World Allergy Organization journal · 2024Article
- Pollen and viruses contribute to spatio-temporal variation in asthma-related emergency department visits.Environmental research · 2024Article
- Association of asthma exacerbations with paper mulberry (Broussenetia papyrifera) pollen in Islamabad: An observational study.Journal of global health · 2023Observational
- A comparison of experience sampled hay fever symptom severity across rural and urban areas of the UK.Scientific reports · 2023Article
- Asthma patients' perspectives on telehealth in disease management: A focus group study.Health care transitions · 2023Article
- Article
- The environmental impact of inhaled therapy: making informed treatment choices.The European respiratory journal · 2022Review
- A Review of the Respiratory Health Burden Attributable to Short-Term Exposure to Pollen.International journal of environmental research and public health · 2022Review
- Impact of lockdowns on paediatric asthma hospital presentations over three waves of COVID-19 pandemic.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2022Article
- Global climate change and human health: Pathways and possible solutions.Eco-Environment & Health · 2022Review
- The Effect of Outdoor Aeroallergens on Asthma Hospitalizations in Children in North-Western Tuscany, Italy.International journal of environmental research and public health · 2022Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
Exposure to pollen can contribute to increased hospital admissions for asthma exacerbation. This study applied an ecological time series analysis to examine associations between atmospheric concentrations of different pollen types and the risk of hospitalization for asthma in London from 2005 to 2011. The analysis examined short-term associations between daily pollen counts and hospital admissions in the presence of seasonal and long-term patterns, and allowed for time lags between exposure and admission. Models were adjusted for temperature, precipitation, humidity, day of week, and air pollutants. Analyses revealed an association between daily counts (continuous) of grass pollen and adult hospital admissions for asthma in London, with a 4-5-day lag. When grass pollen concentrations were categorized into Met Office pollen 'alert' levels, 'very high' days (vs. 'low') were associated with increased admissions 2-5 days later, peaking at an incidence rate ratio of 1.46 (95%, CI 1.20-1.78) at 3 days. Increased admissions were also associated with 'high' versus 'low' pollen days at a 3-day lag. Results from tree pollen models were inconclusive and likely to have been affected by the shorter pollen seasons and consequent limited number of observation days with higher tree pollen concentrations. Future reductions in asthma hospitalizations may be achieved by better understanding of environmental risks, informing improved alert systems and supporting patients to take preventive measures.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.