scholarly journals Associations of Sedentary Time with Heart Rate and Heart Rate Variability in Adults: A Systematic Review and Meta-Analysis of Observational Studies

2021 ◽  
Vol 18 (16) ◽  
pp. 8508
Author(s):  
Abdullah Bandar Alansare ◽  
Lauren C. Bates ◽  
Lee Stoner ◽  
Christopher E. Kline ◽  
Elizabeth Nagle ◽  
...  
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
English Language ◽  
Sedentary Time ◽  
Meta Analysis ◽  
Qualitative Synthesis ◽  
Cross Sectional ◽  
Inverse Variance ◽  
Observational Design ◽  
Substantial Heterogeneity

Purpose: To evaluate if sedentary time (ST) is associated with heart rate (HR) and variability (HRV) in adults. Methods: We systematically searched PubMed and Google Scholar through June 2020. Inclusion criteria were observational design, humans, adults, English language, ST as the exposure, resting HR/HRV as the outcome, and (meta-analysis only) availability of the quantitative association with variability. After qualitative synthesis, meta-analysis used inverse variance heterogeneity models to estimate pooled associations. Results: Thirteen and eight articles met the criteria for the systematic review and meta-analysis, respectively. All studies were cross-sectional and few used gold standard ST or HRV assessment methodology. The qualitative synthesis suggested no associations between ST and HR/HRV. The meta-analysis found a significant association between ST and HR (β = 0.24 bpm per hour ST; CI: 0.10, 0.37) that was stronger in males (β = 0.36 bpm per hour ST; CI: 0.19, 0.53). Pooled associations between ST and HRV indices were non-significant (p > 0.05). Substantial heterogeneity was detected. Conclusions: The limited available evidence suggests an unfavorable but not clinically meaningful association between ST and HR, but no association with HRV. Future longitudinal studies assessing ST with thigh-based monitoring and HRV with electrocardiogram are needed.

scholarly journals Chinese Herbal Medicine (“3 Medicines and 3 Formulations”) for COVID-19: Rapid Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Xiao-Yang Hu ◽  
Yangzihan Wang ◽  
Junqiao Chen ◽  
Trisha Greenhalgh ◽  
Jon Wardle
Keyword(s):  
Systematic Review ◽  
Herbal Medicine ◽  
Disease Severity ◽  
Chinese Herbal Medicine ◽  
English Language ◽  
Meta Analysis ◽  
Chinese Herbal ◽  
Clinical Trial Registries ◽  
Inverse Variance ◽  
Secondary Outcomes

Abstract Background: To evaluate the evidence behind claims that Chinese Herbal Medicine, specifically “three medicines and three formulations” (3M3F, comprising Jinhua Qinggan, Lianhua Qingwen, Xuebijing, Qingfei Paidu, Huashi Baidu and Xuanfei Baidu), is an effective treatment for COVID-19. Methods: We searched PubMed, MEDLINE and CNKI databases, preprint servers, clinical trial registries and supplementary sources for Chinese- or English-language randomised trials or non-randomised studies with comparator groups, which tested the constituents of 3M3F in the treatment of COVID-19 up to September 2020. Primary outcome was change in disease severity. Secondary outcomes included various symptoms. Meta-analysis (using generic inverse variance random effects model) was performed when there were two or more studies reporting on the same symptom. Results: Of 607 articles identified, thirteen primary studies (six RCTs and seven retrospective non-randomised comparative studies) with 1467 participants met our final inclusion criteria. Studies were small and had significant methodological limitations, most notably potential bias in assessment of outcomes. No study convincingly demonstrated a statistically significant impact on change in disease severity. Eight studies reported sufficiently similar secondary outcomes to be included in a meta-analysis. Some statistically significant impacts on symptoms, chest CT manifestations, laboratory variables and length of stay were demonstrated, but such findings were sparse and many remain unreplicated.Conclusions: These findings neither support nor refute the claim that 3M3F alters the severity of COVID-19 or alleviates symptoms. More rigorous studies are required to properly ascertain the potential role of Chinese Herbal Medicine in COVID-19.Systematic review registration: This review was registered on PROSPERO (CRD42020187502) prior to data collection and analysis.

Sleep Restriction Effects on BP: Systematic Review & Meta-analysis of RCTs

2019 ◽  
Vol 42 (7) ◽  
pp. 567-576
Author(s):  
Shan Hu ◽  
Songbo Jing ◽  
Yixuan Gao
Keyword(s):  
Systematic Review ◽  
Blood Pressure ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Preliminary Evidence ◽  
Sleep Restriction ◽  
Forest Plot ◽  
Cross Sectional ◽  
Inverse Variance ◽  
Partial Sleep Deprivation

This systematic review and meta-analysis aimed to examine the effect of sleep restriction on blood pressure (BP) among healthy adults. Randomized controlled trials (RCTs) using partial sleep deprivation were included. The pooled effect size was calculated by the inverse variance method, and forest plot was used. Six studies were included (n = 10–43). Only one study obtained continuous BP readings. Overall, sleep restriction did not result in significant changes in systolic blood pressure (SBP) or diastolic blood pressure (DBP) and heart rate (HR). The respective weighted mean difference (MD) was 1.0 mmHg (95%CI, -2.3–4.2; p = 0.57), -0.4 mmHg (95%CI, -3.2–2.4; p = 0.80), and 2.0 bpm (95%CI, -2.2–6.2; p = 0.34). There is preliminary evidence suggesting that sleep restriction might affect sympathetic/parasympathetic modulation of cardiac autonomy and the inflammatory system. In this review, we did not find significant effects of sleep restriction on BP or HR measured by cross-sectional methods. More studies are warranted to confirm these findings by using continuous monitoring.

scholarly journals Maltreatment in childhood substantially increases the risk of adult depression and anxiety in prospective cohort studies: systematic review, meta-analysis, and proportional attributable fractions

2015 ◽  
Vol 46 (4) ◽  
pp. 717-730 ◽  
Author(s):  
M. Li ◽  
C. D'Arcy ◽  
X. Meng
Keyword(s):  
Systematic Review ◽  
Cohort Studies ◽  
Childhood Maltreatment ◽  
English Language ◽  
Meta Analysis ◽  
Grey Literature ◽  
Depression And Anxiety ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Attributable Fractions

BackgroundLiterature supports a strong relationship between childhood maltreatment and mental illness but most studies reviewed are cross-sectional and/or use recall to assess maltreatment and are thus prone to temporality and recall bias. Research on the potential prospective impact of maltreatment reduction on the incidence of psychiatric disorders is scarce.MethodElectronic databases and grey literature from 1990 to 2014 were searched for English-language cohort studies with criteria for depression and/or anxiety and non-recall measurement of childhood maltreatment. Systematic review with meta-analysis synthesized the results. Study quality, heterogeneity, and publication bias were examined. Initial screening of titles and abstracts resulted in 199 papers being reviewed. Eight high-quality articles met eligibility criteria. Population attributable fractions (PAFs) estimated potential preventive impact.ResultsThe pooled odds ratio (OR) between any type of maltreatment and depression was 2.03 [95% confidence interval (CI) 1.37–3.01] and 2.70 (95% CI 2.10–3.47) for anxiety. For specific types of maltreatment and depression or anxiety disorders, the ORs were: physical abuse (OR 2.00, 95% CI 1.25–3.19), sexual abuse (OR 2.66, 95% CI 1.88–3.75), and neglect (OR 1.74, 95% CI 1.35–2.23). PAFs suggest that over one-half of global depression and anxiety cases are potentially attributable to self-reported childhood maltreatment. A 10–25% reduction in maltreatment could potentially prevent 31.4–80.3 million depression and anxiety cases worldwide.ConclusionThis review provides robust evidence of childhood maltreatment increasing the risk for depression and anxiety, and reinforces the need for effective programs and policies to reduce its occurrence.

scholarly journals Prevalence of human T-lymphotropic virus type 1 and 2 (HTLV-1/-2) infection in pregnant women in Brazil: a systematic review and meta-analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bruna Angelo Vieira ◽  
Augusto Bacelo Bidinotto ◽  
William Jones Dartora ◽  
Luana Giongo Pedrotti ◽  
Vanessa Martins de Oliveira ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pregnant Women ◽  
Virus Type ◽  
Meta Analysis ◽  
Confirmatory Test ◽  
Cochrane Library ◽  
Qualitative Synthesis ◽  
Cross Sectional ◽  
T Lymphotropic Virus

AbstractHuman T-lymphotropic virus type 1 (HTLV-1) infection may cause serious disease, while pathogenicity of HTLV-2 is less certain. There are no screening or surveillance programs for HTLV-1/-2 infection in Brazil. By performing this systematic review, we aimed to estimate the prevalence of HTLV-1/-2 infections in pregnant women in Brazil. This review included cohort and cross-sectional studies that assessed the presence of either HTLV-1/-2 infection in pregnant women in Brazil. We searched BVS/LILACS, Cochrane Library/CENTRAL, EMBASE, PubMed/MEDLINE, Scopus, Web of Science and gray literature from inception to August 2020. We identified 246 records in total. Twenty-six of those were included in the qualitative synthesis, while 17 of them were included in the meta-analysis. The prevalence of HTLV-1 in Brazilian pregnant women, as diagnosed by a positive screening test and a subsequent positive confirmatory test, was 0.32% (95% CI 0.19–1.54), while of HTLV-2 was 0.04% (95% CI 0.02–0.08). Subgroup analysis by region showed the highest prevalence in the Northeast region (0.60%; 95% CI 0.37–0.97) for HTLV-1 and in the South region (0.16%; 95% CI 0.02–1.10) for HTLV-2. The prevalence of HTLV-1 is much higher than HTLV-2 infection in pregnant Brazilian women with important differences between regions. The prevalence of both HTLV-1/-2 are higher in the Northeast compared to Center-West region.

scholarly journals Studies on the prevalence of blindness in Ethiopia: a protocol for the systematic review and meta-analysis

2021 ◽  
Vol 6 (1) ◽  
pp. e000881
Author(s):  
Merkineh Markos ◽  
Biruktawit Kefyalew ◽  
Hana Belay Tesfaye
Keyword(s):  
Systematic Review ◽  
English Language ◽  
Assessment Tool ◽  
Data Extraction ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Design Strategies ◽  
Cross Sectional ◽  
Standard Data ◽  
Potential Sources

IntroductionBlindness refers to a lack of vision and/or defined as presenting visual acuity worse than 3/60 in the better eye. Its highest proportion has been conforming to the developing countries such as Ethiopia. So, timely information is crucial to design strategies. However, the study on the magnitude of blindness in Ethiopia was outdated, that means it was conducted in 2005–2006. Therefore, this protocol has been proposed to estimate the pooled prevalence of blindness in Ethiopia to provide up-to-date, comprehensive evidence on this theme.Methods and analysisThe following databases will be used to search articles: PubMed, Cochrane Library, Google Scholar and retrieving references. Standard data extraction approach will be employed and presented using Preferred Reporting Items for Systematic Review and Meta-Analysis. The Newcastle–Ottawa Scale quality assessment tool will be used to evaluate the quality of studies. Analysis will be held using STATA V.11. Funnel plot and Egger’s regression test will be applied to check for the potential sources of bias. Heterogeneity among the studies will be tested using Higgins method in which I² statistics will be calculated and compared with the standard. Meta-regression and subgroup analysis will be done to identify the potential sources of heterogeneity. Cross-sectional and survey studies conducted in Ethiopia and published in English language will be included.Ethics and disseminationEthics approval and consent are not required. On completion, the result will be submitted to a reputable peer-reviewed journal.Trial registration numberCRD42021268448.

scholarly journals Risk factors for chronic kidney disease of non-traditional causes: a systematic review

2019 ◽  
Vol 43 ◽  
pp. 1 ◽  
Author(s):  
Evelina Chapman ◽  
Michelle M. Haby ◽  
Eduardo Illanes ◽  
Julian Sanchez-Viamonte ◽  
Vanessa Elias ◽  
...  
Keyword(s):  
Systematic Review ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Preventive Measures ◽  
Meta Analysis ◽  
Evidence Base ◽  
High Quality ◽  
High Quality Research ◽  
Cross Sectional ◽  
Substantial Heterogeneity

Objectives.To evaluate the potential associations between chronic kidney disease of uncertain or non-traditional etiology (CKDnT) and agrochemicals, heat stress, heavy metals, and other factors identified in the literature in any region of the world and at any time.Methods.This was a systematic review of the most frequent exposures suspected to be possible causes of CKDnT. A search was conducted of PubMed, LILACS, World Wide Science electronic databases, among other sources. Only medium- and high-quality studies were included. The synthesis of evidence included a narrative synthesis, meta-analysis, and meta-regression.Results.Four systematic reviews and 61 primary studies were included. Results of the meta-analysis suggest that exposure to agrochemicals and working in agriculture increase the risk of CKDnT, but this only reached significance for working in agriculture. When cross-sectional studies were excluded, agrochemical exposure became significant. However, there is substantial heterogeneity in the effect sizes.Conclusions.Based on the existing evidence and the precautionary principle, it is important to implement preventive measures to mitigate the damage caused by CKDnT to both agricultural workers and their communities (i.e., improvement of working conditions, cautious management of agrochemicals, etc.). More high-quality research is needed to measure impact and to build the evidence base.

scholarly journals Hypertensive disorders of pregnancy and risk of asthma in offspring: protocol for a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e035145 ◽  
Author(s):  
Ping Li ◽  
Tao Xiong ◽  
Yong Hu
Keyword(s):  
Systematic Review ◽  
English Language ◽  
Data Extraction ◽  
Meta Analysis ◽  
Published Data ◽  
Hypertensive Disorders Of Pregnancy ◽  
Cross Sectional ◽  
Random Effects Models ◽  
Hypertensive Disorders ◽  
Increased Risk

IntroductionHypertensive disorders of pregnancy (HDP), one of the most common obstetrical complications, has been reported to have a controversial relationship with the increased risk of asthma in offspring. No systematic review of this topic has been performed. The aim of this systematic review will be to summarise the available evidence examining the association between HDP and the risk of asthma in offspring.Methods and analysisWe will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-analysis of Observational Studies in Epidemiology guidelines. A systematic search of the PubMed, Embase, Cochrane and Web of Science databases will be performed using a detailed search strategy from database inception through 31 December 2019. Cohort, case-control and cross-sectional studies that report a diagnosis of maternal HDP and asthma in offspring will be included. Studies will be limited to the English language and include only human participants. Two independent reviewers will conduct the study selection, data extraction and risk of bias assessments using a standardised data extraction form. A meta-analysis will be performed to calculate overall pooled estimates using the generic inverse variance method. The data will be synthesised by either fixed-effect or random effects models according to heterogeneity tests. All analyses will be performed in Stata 14 and RevMan 5.3. High-quality evidence of the relationship between HDP and the risk of asthma in exposed offspring will be identified through the synthesis of current studies. In addition, the results of subgroup analyses and related secondary outcomes will be reported. The following will be concluded: (i) whether HDP increases the risk of asthma in offspring, (ii) whether HDP affects the severity of asthma in exposed offspring and (iii) whether possible differences in the risk of asthma among different HDP subgroups exist.Ethics and disseminationThere is no requirement for ethics approval because the meta-analysis and systematic review will be based on published data. It is anticipated that the dissemination of results will take place at conferences and through publication in a peer-reviewed journal.

scholarly journals Road Traffic Noise Exposure and Depression/Anxiety: An Updated Systematic Review and Meta-Analysis

2019 ◽  
Vol 16 (21) ◽  
pp. 4134 ◽  
Author(s):  
Angel M. Dzhambov ◽  
Peter Lercher
Keyword(s):  
Systematic Review ◽  
Noise Exposure ◽  
Road Traffic ◽  
Meta Analysis ◽  
Traffic Noise ◽  
World Health ◽  
Sensitivity Analyses ◽  
Road Traffic Noise ◽  
Qualitative Synthesis ◽  
Cross Sectional

Unlike other World Health Organization evidence reviews, the systematic review on mental disorders could not provide a quantitative estimate of the effect of environmental noise. With that in mind, we aimed to update it with additional studies published through to 18 August 2019 in order to allow for a formal meta-analysis of the association of residential road traffic noise with anxiety and depression. The quality effects and random effects estimators were used for meta-analysis and the robustness of findings was tested in several sensitivity analyses. Ten studies were included in the qualitative synthesis, from which we extracted 15 estimates for depression (n = 1,201,168) and five for anxiety (n = 372,079). Almost all studies were cross-sectional and the risk of bias in them was generally high. We found 4% (95% CI: −3%, 11%) higher odds of depression and 12% (95% CI: −4%, 30%) of anxiety associated with a 10 dB(A) increase in day–evening–night noise level (Lden). Both models suffered from moderate heterogeneity (55% and 54%), but there was evidence of publication bias only in the depression model. These findings were robust with no evidence of study-level moderators. A sensitivity analysis on an alternative set of categorically-reported estimates supported a linear relationship between Lden and depression. Taking into account an overall quality assessment for the included studies, we conclude that there is evidence of “very low” quality that increasing exposure to road traffic noise may be associated with depression and anxiety.

scholarly journals Ceftolozane-Tazobactam Combination Therapy Compared to Ceftolozane-Tazobactam Monotherapy for the Treatment of Severe Infections: A Systematic Review and Meta-Analysis

Antibiotics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 79
Author(s):  
Marco Fiore ◽  
Antonio Corrente ◽  
Maria Caterina Pace ◽  
Aniello Alfieri ◽  
Vittorio Simeon ◽  
...  
Keyword(s):  
Systematic Review ◽  
Combination Therapy ◽  
Clinical Improvement ◽  
English Language ◽  
Meta Analysis ◽  
Control Group ◽  
Qualitative Synthesis ◽  
All Cause Mortality ◽  
Severe Infections ◽  
Microbiological Cure

Ceftolozane-tazobactam (C/T) is a combination of an advanced-generation cephalosporin (ceftolozane) with a β-lactamase inhibitor (tazobactam). It is approved for the treatment of complicated urinary-tract/intra-abdominal infections and hospital-acquired/ventilator-associated pneumonia. This systematic review and meta-analysis (registered prospectively on PROSPERO, no. CRD42019134099, on 20 January 2020) aimed to evaluate the effectiveness of C/T combination therapy compared to C/T monotherapy for the treatment of severe infections and to describe the prevalence of microorganisms in the included studies. We retrieved literature from PubMed, EMBASE, and CENTRAL, until 26 November 2020. Eligible studies were both randomised trials and nonrandomised studies with a control group, published in the English language and peer-reviewed journals. The primary outcome was all-cause mortality; secondary outcomes were (i) clinical improvement and (ii) microbiological cure. Eight nonrandomised studies were included in the qualitative synthesis: Seven retrospective cohort studies and one case-control study. The meta-analysis of the four studies evaluating all-cause mortality (in total 148 patients: 87 patients treated with C/T alone and 61 patients treated with C/T combination therapy) showed a significant reduction of mortality in patients receiving C/T combination therapy, OR: 0.31, 95% CI: 0.10–0.97, p = 0.045. Conversely, the meta-analysis of the studies evaluating clinical improvement and microbiological cure showed no differences in C/T combination therapy compared to C/T monotherapy. The most consistent data come from the analysis of the clinical improvement, n = 391 patients, OR: 0.97, 95% CI: 0.54–1.74, p = 0.909. In 238 of the 391 patients included (60.8%), C/T was used for the treatment of infections caused by Pseudomonas aeruginosa.

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