SynthesisEnvironmental pollution (Barking, Essex : 1987)2022
Effects of respirators to reduce fine particulate matter exposures on blood pressure and heart rate variability: A systematic review and meta-analysis.
Synthesis in Environmental pollution (Barking, Essex : 1987), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 4 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Association of meteorological factors with allergic rhinitis: a systematic review and meta-analysis.BMC public health · 2025Pooled it
- Effects of PM2.5 Reduction Interventions on Cardiovascular Indicators: A Meta-analysis.Cardiovascular toxicology · 2025Pooled it
- Asthma and decreased lung function in children exposed to perfluoroalkyl and polyfluoroalkyl substances (PFAS): An updated meta-analysis unveiling research gaps.Environmental research · 2024Pooled it
- Prenatal Exposure to Air Pollutants Associated with Allergic Diseases in Children: Which Pollutant, When Exposure, and What Disease? A Systematic Review and Meta-analysis.Clinical reviews in allergy & immunology · 2024Pooled it
- Variation in the fitted filtration efficiency of disposable face masks by sex.Journal of exposure science & environmental epidemiology · 2025Article
- Seasonally modulated nonlinear effects of PMPeerJ · 2025Article
- Air pollution exposure and cardiometabolic risk.The lancet. Diabetes & endocrinology · 2024Review
- Causal Associations of Environmental Pollution and Cardiovascular Disease: A Two-Sample Mendelian Randomization Study.Global heart · 2024Article
- Noise and Air Pollution as Risk Factors for Hypertension: Part II-Pathophysiologic Insight.Hypertension (Dallas, Tex. : 1979) · 2023Review
- Association between metal(loid)s in serum and leukemia: a systematic review and meta-analysis.Journal of environmental health science & engineering · 2023Article
- Health burden and economic loss attributable to ambient PMScientific reports · 2022Article
- Effect modification by sex for associations of fine particulate matter (PMEnvironmental research letters : ERL [Web site] · 2022Article
- An Observational Crossover Study of N95 Respirator with Surgical Mask and Visor in Various Combinations on Healthy Volunteers and Their Impact on Physiological Variables.Anesthesia, essays and researchesArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
Particulate-filtering respirators (PFRs) have been recommended as a practical personal-level intervention to protect individuals from the health effects of particulate matter exposure. However, the cardiovascular benefits of PFRs including improvements in key surrogate endpoints remain unclear. We performed a systematic review and meta-analysis of randomized studies (wearing versus not wearing PFRs) reporting the effects on blood pressure (BP) and heart rate variability (HRV). The search was performed on January 3, 2022 to identify published papers until this date. We queried three English databases, including PubMed, Web of Science Core Collection and Scopus. Of 527 articles identified, eight trials enrolling 312 participants (mean age ± standard deviation: 36 ± 19.8; 132 female) met our inclusion criteria for analyses. Study participants wore PFRs from 2 to 48 h during intervention periods. Wearing PFRs was associated with a non-significant pooled mean difference of -0.78 mmHg (95% confidence interval [CI]: -2.06, 0.50) and -0.49 mmHg (95%CI: -1.37, 0.38) in systolic and diastolic BP (SBP and DBP). There was a marginally significant reduction of mean arterial pressure (MAP) by nearly 1.1 mmHg (95%CI: -2.13, 0.01). The use of PFRs was associated with a significant increase of 38.92 ms
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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.