scholarly journals Efficacy of surgical masks or cloth masks in the prevention of viral transmission: Systematic review, meta‐analysis, and proposal for future trial

2021 ◽  
Author(s):  
Akriti Nanda ◽  
Ivan Hung ◽  
Ava Kwong ◽  
Vivian Chi‐Mei Man ◽  
Pankaj Roy ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Viral Transmission ◽  
Future Trial ◽  
Surgical Masks

scholarly journals SARS-CoV-2 circulation in the school setting: A systematic review and meta-analysis

2021 ◽  
Author(s):  
Chiara Martinoli ◽  
Carlo La Vecchia ◽  
Sara Raimondi ◽  
Federica Bellerba ◽  
Clementina Sasso ◽  
...  
Keyword(s):  
Systematic Review ◽  
Odds Ratio ◽  
Meta Analysis ◽  
School Setting ◽  
Viral Transmission ◽  
Contact Tracing ◽  
Random Effects Models ◽  
Viral Spread ◽  
Literature Searches ◽  
Index Cases

Background. The contribution of children to viral spread in schools is still under debate. We conducted a systematic review and meta-analysis of studies to investigate SARS-CoV-2 transmission in the school setting. Methods: Literature searches from April, 2021 and repeated on May, 15th 2021 yielded a total of 1088 publications: screening, contact tracing and seroprevalence studies. MOOSE guidelines were followed and data analyzed using random-effects models. Results: From screening studies involving more than 120,000 subjects, we estimated 0.31% (95% Confidence Interval [CI] 0.05-0.81%) SARS-CoV-2 point prevalence in schools. Contact tracing studies, involving a total of 112,622 contacts of children and adults, showed that onward viral transmission was limited (2.54%; 95%CI 0.76-5.31). Young index cases were found to be 74% significantly less likely than adults to favor viral spread (Odds Ratio [OR]=0.26; 95%CI 0.11-0.63) and were less susceptible to infection (OR=0.60; 95% CI 0.25-1.47). Finally, from seroprevalence studies, with a total of 17,879 subjects involved, we estimated that children are 43% significantly less likely than adults to test positive for antibodies (OR=0.57; 95%CI: 0.49-0.68). In conclusion, testing all subjects in schools, independently of symptoms, students less likely than adults favor viral spread and SARS-CoV-2 circulation in schools was found to be limited.

scholarly journals Effectiveness of N95 respirators versus surgical masks against influenza: A systematic review and meta‐analysis

2020 ◽  
Vol 13 (2) ◽  
pp. 93-101 ◽  
Author(s):  
Youlin Long ◽  
Tengyue Hu ◽  
Liqin Liu ◽  
Rui Chen ◽  
Qiong Guo ◽  
...  
Keyword(s):  
Systematic Review ◽  
Influenza A ◽  
Meta Analysis ◽  
Surgical Masks ◽  
N95 Respirators

The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen
Keyword(s):  
Systematic Review ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Meta Analysis ◽  
Chain Polyunsaturated Fatty Acid ◽  
Inflammation Markers ◽  
Pufa Supplementation ◽  
Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

The association between dietary inflammatory index and risk of central obesity in adults: An updated systematic review and meta-analysis

2020 ◽  
Vol 90 (5-6) ◽  
pp. 535-552 ◽  
Author(s):  
Mahdieh Abbasalizad Farhangi ◽  
Mahdi Vajdi
Keyword(s):  
Systematic Review ◽  
Observational Studies ◽  
Central Obesity ◽  
Assessment Tool ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Dietary Factors ◽  
Cross Sectional ◽  
Inflammatory Status ◽  
Obesity Indices

Abstract. Backgrounds: Central obesity, as a pivotal component of metabolic syndrome is associated with numerous co-morbidities. Dietary factors influence central obesity by increased inflammatory status. However, recent studies didn’t evaluate the association between central obesity and dietary inflammation index (DII®) that give score to dietary factors according to their inflammatory potential. In the current systematic review and meta-analysis, we summarized the studies that investigated the association between DII® with central obesity indices in the general populations. Methods: In a systematic search from PubMed, SCOPUS, Web of Sciences and Cochrane electronic databases, we collected relevant studies written in English and published until 30 October 2019. The population of included studies were apparently healthy subjects or individuals with obesity or obesity-related diseases. Observational studies that evaluated the association between DII® and indices of central obesity including WC or WHR were included. Results: Totally thirty-two studies were included; thirty studies were cross-sectional and two were cohort studies with 103071 participants. Meta-analysis of observational studies showed that higher DII® scores were associated with 1.81 cm increase in WC (Pooled weighted mean difference (WMD) = 1.813; CI: 0.785–2.841; p = 0.001). Also, a non-significant increase in the odds of having higher WC (OR = 1.162; CI: 0.95–1.43; p = 0.154) in the highest DII category was also observed. In subgroup analysis, the continent, dietary assessment tool and gender were the heterogeneity sources. Conclusion: The findings proposed that adherence to diets with high DII® scores was associated with increased WC. Further studies with interventional designs are necessary to elucidate the causality inference between DII® and central obesity indices.

Fear of pain and pain intensity: Meta-analysis and systematic review.

2020 ◽  
Vol 146 (5) ◽  
pp. 411-450 ◽  
Author(s):  
Tobias Markfelder ◽  
Paul Pauli
Keyword(s):  
Systematic Review ◽  
Pain Intensity ◽  
Meta Analysis ◽  
Fear Of Pain
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