ArticleEnvironmental health insights2022
Inhaled CO
Article in Environmental health insights, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.
- Child mask mandates for COVID-19: a systematic review.Archives of disease in childhood · 2024Pooled it
- Physio-metabolic and clinical consequences of wearing face masks-Systematic review with meta-analysis and comprehensive evaluation.Frontiers in public health · 2023Pooled it
- Effects of anesthetic nasal masks on hypoxemia in overweight/obese patients undergoing gastroscopy: a randomized controlled trial.European journal of medical research · 2025Trial
- Carbon dioxide rises beyond acceptable safety levels in children under nose and mouth covering: Results of an experimental measurement study in healthy children.Environmental research · 2022Trial
- Risks and benefits of face masks in children.Frontiers in pediatrics · 2026Review
- Physiological responses to mask-associated COFrontiers in public health · 2026Review
- Rebreathing during CPAP therapy and its implications in obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Review
- N95 masks increase brain blood velocity and parasympathetic outflow, yet worsen orthostatic symptoms in a healthy cohort.Physiological reports · 2025Article
- The bacterial burden of worn face masks-observational research and literature review.Frontiers in public health · 2024Review
- Effective volume of rebreathed air during breathing with facepieces increases with protection class and decreases with ambient airflow.PloS one · 2024Article
- Reply to Commentaries-"Is mask wearing hazardous for children? No the evidence is insufficient." by Kenzo Takahashi and Tetsuya Tanimoto & comments by Patrick Steinle and Michael F. Koller.Environmental research · 2023Article
- The Effects of Wearing Facemasks during Vigorous Exercise in the Aspect of Cardiopulmonary Response, In-Mask Environment, and Subject Discomfort.International journal of environmental research and public health · 2022Article
- Safety of the Use of Face Masks in Pediatric Age.Environmental health insights · 2022Article
- Author Response: Inhaled COEnvironmental health insights · 2022Article
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 at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Face masks are recommended based on the assumption that they protect against SARS-CoV-2 transmission, however studies on their potential side effects are still lacking. We aimed to evaluate the inhaled air carbon dioxide (CO Methods: We measured end-tidal CO Results: With surgical masks, the mean CO Conclusion: If these results are confirmed, the current guidelines on mask-wearing should be reevaluated.
Indexed as
Identifiers
What OpenQuestion holds
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.