SynthesisEnvironmental geochemistry and health2019
Seasonal variation in the occurrence of ischemic stroke: A meta-analysis.
Synthesis in Environmental geochemistry and health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Seasonal variation in Ménière disease: a systematic review and meta-analysis.Frontiers in neurologyPooled it
- Seasonal variations in hospital admissions and case-fatality of ischemic stroke: a nationwide analysis of >4.2 million cases in Germany.Frontiers in epidemiology · 2026Article
- Viral Infection and Ischemic Stroke: Emerging Trends and Mechanistic Insights.Journal of the American Heart Association · 2024Review
- Seasonal Variations in Stroke and a Comparison of the Predictors of Unfavorable Outcomes among Patients with Acute Ischemic Stroke and Cardioembolic Stroke.Biomedicines · 2024Article
- Clustering of Environmental Parameters and the Risk of Acute Ischaemic Stroke.International journal of environmental research and public health · 2023Article
- Stroke admissions and revascularization treatments in Denmark during COVID-19.Acta neurologica Scandinavica · 2022Article
- Plasma Proteins as Occupational Hazard Risk Monitors for Populations Working in Harsh Environments: A Mendelian Randomization Study.Frontiers in public health · 2022Article
- Comparative Analysis of COVID-19 Outbreak and Changes in Neurosurgical Emergency Patients.Journal of Korean Neurosurgical Society · 2022Article
- Decline in mild stroke presentations and intravenous thrombolysis during the COVID-19 pandemic: The Society of Vascular and Interventional Neurology Multicenter Collaboration.Clinical neurology and neurosurgery · 2021Observational
- Stroke Seasonality and Weather Association in a Middle East Country: A Single Tertiary Center Experience.Frontiers in neurology · 2021Article
- Ischaemic stroke in the time of coronavirus disease 2019.European journal of neurology · 2020Article
- The Baffling Case of Ischemic Stroke Disappearance from the Casualty Department in the COVID-19 Era.European neurology · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Stroke was demonstrated to correlate with seasonal variation. However, the relevant studies were incongruous. To better understand the rules of seasonal impact on ischemic stroke (IS) patients, we performed this meta-analysis. We systematically searched relevant observational studies in Pubmed, Web of science and Embase from January 1, 1980, to November 1, 2017, in English. Patients included in this study were adults who suffered from IS. Stata version 12.0 software was used to pool useful data and calculate incidence rate ratios (IRRs) and their 95% confidence intervals (CIs). We also performed heterogeneity and sensitivity analyses and evaluated publication bias. Thirty-three observational studies involving 234,196 participants were incorporated into the meta-analysis. Summer and December were regarded as reference, respectively. The IRRs were calculated showing: IRR
Indexed as
Identifiers
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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.