ArticleMedical archives (Sarajevo, Bosnia and Herzegovina)2020
Four-type of Masks and its Effectiveness Based on Reduced Level of Expiratory Carbon-monoxide.
Article in Medical archives (Sarajevo, Bosnia and Herzegovina), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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Who cites it
2 citing papers in PubMed, 7 citations in OpenAlex.
- Comparison of acetylcholinesterase among employees based on job positions and personal protective equipment in fuel station.Environmental analysis, health and toxicology · 2023Article
- Air pollution and its effects on lung health in never-smoker youth of Delhi NCR versus Pauri Garhwal: a comparative cross-sectional study.Medical journal, Armed Forces IndiaArticle
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 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionCarbon-monoxide (CO) is a major component of motor-vehicles related air pollution. Motor-vehicles emissions are a major source of air pollution in urban areas and give significant adverse effects on human life.
aimThis study aimed to assess the change of expiratory carbon-monoxide levels after using four-type of masks in people around Universitas Sumatera Utara.
methodsThis was an experimental study with a consecutive sampling technique involved 100 non-smoker subjects. They were divided into four groups based on masks given: fabric, surgical, carbon, and an N95 mask. Expiratory CO was measured by a smokerlyzer device. Data were analyzed using SPSS software with Wilcoxon and Kruskal Wallis Test.
resultsThere was a significant change of carbon-monoxide mean level after using the mask for 8 hours in a surgical mask, N95 mask, and carbon mask (p-value: 0.002; 0.000; 0.000). After analyzed using Kruskal Wallis Test, there was a significant difference in the change of mean of pre and post wearing mask (ΔCO) among four-type of masks with p-value < 0.001. Post Hoc Analysis showed the significant difference was in the comparison between N95 mask vs Fabric Mask and Carbon Mask vs Fabric Mask (p-value: 0.002; 0.021).
conclusionAll three type of masks such as surgical mask, N95 mask, and carbon mask was effective to reduce CO levels from air pollution with the most significant was N95 and carbon mask. Fabric mask has the poorest protection from CO levels.
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Registered trials
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