scholarly journals Concurrent validity of the alcohol purchase task in relation to alcohol involvement: protocol for a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. e035400
Author(s):  
Alba González-Roz ◽  
Víctor Martínez-Loredo ◽  
Roberto Secades-Villa ◽  
Michael Amlung ◽  
James MacKillop
Keyword(s):  
Concurrent Validity ◽  
Meta Analysis ◽  
Random Effect ◽  
Cross Sectional ◽  
Alcohol Demand ◽  
Alcohol Involvement ◽  
Registration Number ◽  
Methodological Procedures ◽  
Individual Variables ◽  
Alcohol Purchase Task

IntroductionAlcohol demand, as measured by an alcohol purchase task (APT), provides a multidimensional assessment of the relative reinforcing efficacy of alcohol. The objective of this meta-analysis is to critically appraise the existing literature on the concurrent validity of the APT by meta-analysing the cross-sectional relationships between indices of the APT (ie, breakpoint, Omax, Pmax, elasticity and intensity) and alcohol-related measures. It also aims to examine methodological procedures used to obtain APT indices and individual variables as potential moderators on the assessed estimations.Methods and analysisA comprehensive literature search conducted from inception to April 2020 will be conducted in the PubMed, PsycINFO, Web of Science and Scopus databases. Two authors will independently screen and extract data from articles using a predefined protocol search and extraction forms. Disagreements will be resolved through discussion with two additional reviewers. All results will be tabulated, and a random-effect meta-analysis will be conducted. Participants’ sex, number of prices and APT methodological procedures will be examined as potential moderators on the observed effect sizes.Ethics and disseminationResults of this meta-analysis will characterise the concurrent validity of the APT in the existing literature. Further, the results are anticipated to provide evidence on which index (or indices) is most robustly associated with alcohol use and severity. Ethics approval was not required for this study and the results will be published in a peer-reviewed journal.PROSPERO registration numberCRD42019137512

Cardiovascular Responses to Muscle Stretching: A Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Ewan Thomas ◽  
Marianna Bellafiore ◽  
Ambra Gentile ◽  
Antonio Paoli ◽  
Antonio Palma ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Cardiovascular System ◽  
Vascular Function ◽  
Meta Analysis ◽  
Random Effect ◽  
Cardiovascular Responses ◽  
Qualitative Description ◽  
Cross Sectional ◽  
Quantitative Synthesis

AbstractThe aim of this study will be to review the current body of literature to understand the effects of stretching on the responses of the cardiovascular system. A literature search was performed using the following databases: Scopus, NLM Pubmed and ScienceDirect. Studies regarding the effects of stretching on responses of the cardiovascular system were investigated. Outcomes regarded heart rate(HR), blood pressure, pulse wave velocity (PWV of which baPWV for brachial-ankle and cfPWV for carotid-femoral waveforms), heart rate variability and endothelial vascular function. Subsequently, the effects of each outcome were quantitatively synthetized using meta-analytic synthesis with random-effect models. A total of 16 studies were considered eligible and included in the quantitative synthesis. Groups were also stratified according to cross-sectional or longitudinal stretching interventions. Quality assessment through the NHLBI tools observed a “fair-to-good” quality of the studies. The meta-analytic synthesis showed a significant effect of d=0.38 concerning HR, d=2.04 regarding baPWV and d=0.46 for cfPWV. Stretching significantly reduces arterial stiffness and HR. The qualitative description of the studies was also supported by the meta-analytic synthesis. No adverse effects were reported, after stretching, in patients affected by cardiovascular disease on blood pressure. There is a lack of studies regarding vascular adaptations to stretching.

scholarly journals Longitudinal association between CRP levels and risk of psychosis: a meta-analysis of population-based cohort studies

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Emanuele F. Osimo ◽  
Luke Baxter ◽  
Jan Stochl ◽  
Benjamin I. Perry ◽  
Stephen A. Metcalf ◽  
...  
Keyword(s):  
Cohort Studies ◽  
Meta Analysis ◽  
Random Effect ◽  
Population Based ◽  
Continuous Variable ◽  
Cross Sectional ◽  
Standard Deviation Increase ◽  
Suspected Infection ◽  
Longitudinal Association ◽  
Incident Cases

AbstractMeta-analyses of cross-sectional studies suggest that patients with psychosis have higher circulating levels of C-reactive protein (CRP) compared with healthy controls; however, cause and effect is unclear. We examined the prospective association between CRP levels and subsequent risk of developing a psychotic disorder by conducting a systematic review and meta-analysis of population-based cohort studies. Databases were searched for prospective studies of CRP and psychosis. We obtained unpublished results, including adjustment for age, sex, body mass index, smoking, alcohol use, and socioeconomic status and suspected infection (CRP > 10 mg/L). Based on random effect meta-analysis of 89,792 participants (494 incident cases of psychosis at follow-up), the pooled odds ratio (OR) for psychosis for participants with high (>3 mg/L), as compared to low (≤3 mg/L) CRP levels at baseline was 1.50 (95% confidence interval [CI], 1.09–2.07). Evidence for this association remained after adjusting for potential confounders (adjusted OR [aOR] = 1.31; 95% CI, 1.03–1.66). After excluding participants with suspected infection, the OR for psychosis was 1.36 (95% CI, 1.06–1.74), but the association attenuated after controlling for confounders (aOR = 1.23; 95% CI, 0.95–1.60). Using CRP as a continuous variable, the pooled OR for psychosis per standard deviation increase in log(CRP) was 1.11 (95% CI, 0.93–1.34), and this association further attenuated after controlling for confounders (aOR = 1.07; 95% CI, 0.90–1.27) and excluding participants with suspected infection (aOR = 1.07; 95% CI, 0.92–1.24). There was no association using CRP as a categorical variable (low, medium or high). While we provide some evidence of a longitudinal association between high CRP (>3 mg/L) and psychosis, larger studies are required to enable definitive conclusions.

scholarly journals What does my neighbourhood have to do with my weight? A protocol for systematic review and meta-analysis of the association between neighbourhood socioeconomic status and body weight

BMJ Open ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. e017567
Author(s):  
Shimels Hussien Mohammed ◽  
Mulugeta Molla Birhanu ◽  
Tesfamichael Awoke Sissay ◽  
Tesfa Dejenie Habtewold ◽  
Balewgizie Sileshi Tegegn ◽  
...  
Keyword(s):  
Systematic Review ◽  
Socioeconomic Status ◽  
Data Extraction ◽  
Meta Analysis ◽  
Cross Sectional ◽  
Registration Number ◽  
Newcastle Ottawa Scale ◽  
Neighbourhood Socioeconomic Status ◽  
Using Data

IntroductionIndividuals living in poor neighbourhoods are at a higher risk of overweight/obesity. There is no systematic review and meta-analysis study on the association of neighbourhood socioeconomic status (NSES) with overweight/obesity. We aimed to systematically review and meta-analyse the existing evidence on the association of NSES with overweight/obesity.Methods and analysisCross-sectional, case–control and cohort studies published in English from inception to 15 May 2017 will be systematically searched using the following databases: PubMed, EMBASE, Web of Sciences and Google Scholar. Selection, screening, reviewing and data extraction will be done by two reviewers, independently and in duplicate. The Newcastle–Ottawa Scale (NOS) will be used to assess the quality of evidence. Publication bias will be checked by visual inspection of funnel plots and Egger’s regression test. Heterogeneity will be checked by Higgins’s method (I2statistics). Meta-analysis will be done to estimate the pooled OR. Narrative synthesis will be performed if meta-analysis is not feasible due to high heterogeneity of studies.Ethics and disseminationEthical clearance is not required as we will be using data from published articles. Findings will be communicated through a publication in a peer-reviewed journal and presentations at professional conferences.PROSPERO registration numberCRD42017063889.

scholarly journals Non-prescription dispensing of antibiotic agents among community drug retail outlets in Sub-Saharan African countries: a systematic review and meta-analysis

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Sewunet Admasu Belachew ◽  
Lisa Hall ◽  
Linda A. Selvey
Keyword(s):  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Acute Diarrhoea ◽  
Upper Respiratory Tract ◽  
Cross Sectional ◽  
Retail Outlets ◽  
Sub Saharan ◽  
Tract Infections ◽  
Ssa Countries

Abstract Background The development of antimicrobial resistance, which is partially attributable to the overuse and/or misuse of antibiotics in health care, is one of the greatest global public health challenges. In Sub-Saharan African (SSA) countries, non-prescribed dispensing of antibiotics in community drug retail outlets (CDROs) has been flagged as one of the contributing factors for the widespread misuse of antibiotics in the community. Objective The current review aimed to estimate the proportion of non-prescription antibiotics requests or consultations that resulted in provision of antibiotics without a valid prescription among CDROs in SSA region, and describe the type of antibiotics dispensed. Methods A literature search was conducted using PubMed, CINAHL, Scopus and Google Scholar. We also searched reference lists of relevant articles. Random effect model meta-analysis was employed to determine the pooled proportion of over the counter sale of antibiotics. Subgroup and meta-regression was undertaken to explore the potential cause of heterogeneity in effect size across studies. Results Of 671 total citations retrieved, 23 met the inclusion criteria (seven cross-sectional questionnaire-based surveys and 16 cross-sectional client-based studies). The overall pooled proportion of non-prescription antibiotics requests or consultations that resulted in supply of antibiotics without prescription was 69% (95% CI 58–80). Upper respiratory tract infections and/or acute diarrhoea were the most frequently presented case scenarios, and amoxicillin and co-trimoxazole were the most frequently dispensed antibiotics to treat those symptoms. Conclusions Non-prescribed dispensing of antibiotics was found to be a common practice among CDROs in several SSA countries. Ease of access to and overuse of antibiotics can potentially accelerate the emergence of resistance to antibiotics available in the region. Our review highlights the need for a stringent enforcement of existing policies and/or enacting new regulatory frameworks that would regulate antibiotic supply, and training and educational support for pharmacy personnel (e.g. pharmacists, pharmacy assistants) regarding judicious use of antibiotics and the importance of antimicrobial stewardship.

Association Between Prediabetes and Retinopathy: A Meta-Analysis

2021 ◽  
Vol 53 (12) ◽  
pp. 801-809
Author(s):  
Ji Jin ◽  
Peirong Lu
Keyword(s):  
Meta Analysis ◽  
Microvascular Complications ◽  
Random Effect ◽  
Random Effect Model ◽  
Community Dwelling ◽  
Current Evidence ◽  
Cross Sectional ◽  
Increased Risk ◽  
Study Heterogeneity ◽  
Study Characteristics

AbstractDiabetes confers an increased risk of microvascular complications, including retinopathy. However, whether prediabetes is also related to retinopathy has not been comprehensively examined. We performed a meta-analysis to evaluate the relationship between prediabetes and retinopathy. This meta-analysis included relevant observational studies from Medline, Embase, and Web of Science databases. A random-effect model after incorporation of the intra-study heterogeneity was selected to pool the results. Subgroup analyses were applied to evaluate the influences of study characteristics on relationship. Nine cross-sectional studies including 14 751 community dwelling adult participants were included; 3847 (26.1%) of them were prediabetic. Results showed that prediabetes was associated with a higher prevalence of retinopathy compared to normoglycemia [odds ratio (OR): 1.55, 95% confidence interval (CI): 1.10–2.20, p=0.01, I2=34%]. Sensitivity analysis by excluding one study at a time showed consistent result (OR: 1.35 to 1.73, p all<0.05). Subgroup analysis showed study characteristics such as definition of prediabetes, country of study, sample size, mean age of participants, or univariate or multivariate analyses may not significantly affect the association (p for subgroup difference all>0.05). Current evidence suggests that patients with prediabetes may be associated with higher prevalence of retinopathy as compared to those with normoglycemia. Although prospective cohort studies are needed to validate these findings, results of our meta-analysis highlighted the importance of early prevention of retinopathy in patients with prediabetes.

scholarly journals Effect of Fixed Orthodontic Treatment on Salivary Nickel and Chromium Levels: A Systematic Review and Meta-Analysis of Observational Studies

2019 ◽  
Vol 7 (1) ◽  
pp. 21 ◽  
Author(s):  
Mohammad Imani ◽  
Hamid Mozaffari ◽  
Mazaher Ramezani ◽  
Masoud Sadeghi
Keyword(s):  
Orthodontic Treatment ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Random Effect ◽  
Cochrane Library ◽  
Orthodontic Appliances ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Number Of Patients ◽  
Fixed Orthodontic Appliances

Nickel and chromium ions released from fixed orthodontic appliances may act as allergens. This study aimed to systematically review the effect of fixed orthodontic treatment on salivary levels of these ions by doing a meta-analysis on cross-sectional and cohort studies. The Web of Science, Scopus, Cochrane Library, and PubMed databases were searched for articles on salivary profile of nickel or chromium in patients under fixed orthodontic treatment published from January 1983 to October 2017. A random-effect meta-analysis was done using Review Manager 5.3 to calculate mean difference (MD) and 95% confidence interval (CI), and the quality of questionnaire was evaluated by the Newcastle–Ottawa scale. Fourteen studies were included and analyzed in this meta-analysis. Salivary nickel level was higher in periods of 10 min or less (MD = −11.5 µg/L, 95% CI = −16.92 to −6.07; P < 0.0001) and one day (MD = −1.38 µg/L, 95% CI = −1.97 to −0.80; P < 0.00001) after initiation of treatment compared to baseline (before the insertion of appliance). Salivary chromium level was higher in periods of one day (MD = −6.25 µg/L, 95% CI = −12.00 to −0.49; P = 0.03) and one week (MD = −2.07 µg/L, 95% CI = −3.88 to −0.26; P = 0.03) after the initiation of treatment compared to baseline. Corrosion of fixed orthodontic appliances leads to elevated salivary nickel and chromium concentrations early after initiation of orthodontic treatment. Randomized clinical trials controlling for factors affecting the saliva composition are recommended on a higher number of patients and among different ethnicities.

scholarly journals Epidemiology of gastric cancer in Africa: a systematic review and meta-analysis protocol

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Celestin Danwang ◽  
Jean Joel Bigna
Keyword(s):  
Gastric Cancer ◽  
Systematic Review ◽  
Data Extraction ◽  
Meta Analysis ◽  
Random Effect ◽  
Case Series ◽  
Case Fatality ◽  
Cross Sectional ◽  
Statistical Heterogeneity ◽  
The Usa

Abstract Background Gastric cancer is actually known as the sixth most frequent cancer and the second cancer-related cause of death worldwide. If studies giving an overview of current epidemiology of gastric cancer in Europe, Asia, and the USA are available, in Africa, studies reporting recent data on gastric cancer are sparse. This systematic review and meta-analysis aim therefore to provide relevant data on contemporary epidemiology of gastric cancer in Africa in terms of prevalence, incidence, and case fatality rate. Methods and design We will include cohort, case-control, cross-sectional studies, and case series with more than 30 participants. EMBASE, PubMed, Africa Index Medicus, Africa Journals Online, and Web of Science will be searched for relevant abstracts of studies published and unpublished between January 1, 2000, and April 30, 2019, without language restriction. The review will be reported according to the MOOSE (Meta-analysis Of Observational Studies in Epidemiology) guideline. After screening of abstracts, study selection, data extraction, and risk of bias assessment, we shall assess the studies individually for clinical and statistical heterogeneity. Random-effect meta-analysis will be used to pool studies judged to be clinically homogenous. The Egger test and visual inspection of funnel plots will be used to assess publication bias. Discussion This review will provide relevant data on the current burden of gastric cancer in Africa. Systematic review registration PROSPERO CRD42019130348.

scholarly journals Symptomatology of COVID-19 - Lessons from a meta-analysis across 13 countries

2021 ◽  
Vol 12 (11) ◽  
pp. 3-15
Author(s):  
Champika Saman Kumara Gamakaranage ◽  
Dineshani Hettiarachchi ◽  
Dileepa Ediriweera ◽  
Saroj Jayasinghe
Keyword(s):  
Meta Analysis ◽  
Random Effect ◽  
Clinical Manifestations ◽  
Analysis Data ◽  
Data Sources ◽  
Data Abstraction ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Altered Level ◽  
Comprehensive Picture

Background: COVID-19 pandemic has resulted in varying clinical manifestations and mortality rates. There is no consensus on the symptomatology that would guide researchers and clinicians. Aims and Objectives: The objective was to identify symptoms and their frequencies of COVID-19 with a meta-analysis of studies from several countries. Materials and Methods: Data sources: A systematic review using PubMed and Google Scholar data sources and reference tracing were used to identify 7176 articles. Eligibility criteria: Suitable articles were selected manually with selection criteria and 14 original articles included in meta-analysis. Data abstraction and analysis: PRISMA guidelines used for data abstraction and a table was generated by feeding it with numbers and proportions of each symptom described. A meta-analysis was carried out using random effect models on each symptom separately across the studies and their prevalence rates and 95% confident intervals were calculated. Results: Selected 14 studies, either cross-sectional or cohort studies are analyzed. There were 2,660 confirmed cases of COVID-19. The majority were from China (n=2,439, 91.7%) and remainder from the Netherlands, Italy, Korea, and India and one article from Europe. There were a total of 32 symptoms identified from the meta-analysis and additional 7 symptoms were identified from reference searching. The most common symptoms were (prevalence >50%): fever (79.56%, 95% CI: 72.17–86.09%), malaise (63.3%, 95% CI: 53.1–73.0%), cough (56.7%, 95% CI: 48.6–64.6%), and cold (55.6%, 95% CI: 45.2–65.7%). Symptoms of intermediate incidence (5–49%) were anosmia, sneezing, ocular pain, fatigue, sputum production, arthralgia, tachypnea, palpitation, headache, chest tightness, shortness of breath, chills, myalgia, sore throat, anorexia, weakness, diarrhea, rhinorrhea, dizziness, nausea, altered level of consciousness, vomiting, and abdominal pain. Rare symptoms (<5%): tonsil swelling, hemoptysis, conjunctival injection, lymphadenopathy, and rash. Conclusion: We found (25/32, from meta-analysis) symptoms to be present in ≥5% of cases which could be considered as “typical” symptoms of COVID-19. The list of symptoms we identified is different from those documents released by the WHO, CDC, NHS, Chinese CDC, Institute Pasteur and Mayo Clinic. The compiled list would be useful for future researchers to document a comprehensive picture of the illness.

scholarly journals Effect of HIV Infection on Mortality in Patients with Tuberculosis in Asia: A Meta-Analysis

2020 ◽  
Author(s):  
Liza Laela Abida ◽  
◽  
Bhisma Murti ◽  
Hanung Prasetya ◽  
◽  
...  
Keyword(s):  
Hiv Infection ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cross Sectional Study ◽  
People Living With Hiv ◽  
Cross Sectional ◽  
Risk Of Mortality ◽  
Hiv Mortality ◽  
Keywords Hiv

ABSTRACT Background: TB/HIV coinfectioned remains the leading cause of mortality among people living with HIV (PLHIV). The purpose of this study was to explore the effect of HIV infection on mortality in patients with tuberculosis in Asia. Subjects and Method: This was meta-analysis and systematic review. The study was conducted by collecting published studies from Google Scholar, PubMed, Springer Link, Hindawi, Clinical Key, and ProQuest databases, from 2010 to 2020. Keywords used “HIV” AND “mortality” OR “HIV Mortality” OR “Tuberculosis Mortality” AND “cross sectional” AND “adjusted odd ratio”. The inclusion criteria were full text, using English or Indonesian language, using cross-sectional study design, and reporting adjusted odds ratio. The articles were selected by PRISMA flow chart. The quantitative data were analyzed using random effect model run on Review Manager 5.3. Results: 5 studies in Asia (Thailand, China, Malaysia, and Oman) were included for this study. Meta analysis study reported that HIV elevated the risk of mortality in patients with tuberculosis (aOR= 3.45; 95% CI= 1.14 to 10.45; p = 0.030). Conclusion: HIV elevates the risk of mortality in patients with tuberculosis. Keywords: HIV, mortality, Tuberculosis Correspondence: Liza Laela Abida. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: [email protected]. Mobile: 085640115633. DOI: https://doi.org/10.26911/the7thicph.01.52

scholarly journals Effect of Secondary Education on Exclusive Breastfeeding: Meta-Analysis

2020 ◽  
Author(s):  
Ferda Fibi Tyas Nurkholifa ◽  
◽  
Eti Poncorini Pamungkasari ◽  
Hanung Prasetya ◽  
◽  
...  
Keyword(s):  
Secondary Education ◽  
Exclusive Breastfeeding ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
South Australia ◽  
Inclusion Criteria ◽  
Or Education ◽  
Cross Sectional ◽  
Central Java

ABSTRACT Background: Many studies reported the importance of exclusive breastfeeding for infants. However, there are many obstacles faced by lactating mothers to provide exclusive breastfeeding for their children. This study aimed to investigate the effect of secondary education on exclusive breastfeeding using a meta-analysis. Subjects and Method: Meta-analysis and systematic review were conducted by collecting articles from PubMed, Science Direct, and Google Scholar databases. Keywords used exclusive breastfeeding” AND “secondary education” OR “education for breastfeeding” AND “cross sectional” AND “adjusted odd ratio”. The study population was postpartum mothers. Intervention was secondary education with comparison primary education. The study outcome was exclusive breastfeeding. The inclusion criteria were full text, using English or Indonesian language, and reporting adjusted odds ratio. The articles were selected by PRISMA flow chart. The quantitative data were analyzed using random effect model run on Revman 5.3. Results: 7 studies from Peru, China, Nigeria, Korea, Ireland, Sub-Sahara, and South Australia were met the inclusion criteria. There was high heterogeneity between groups (I2= 94%; p<0.001). This study reported that secondary education reduced exclusive breastfeeding, but it was statistically non-significant (aOR= 0.86; 95% CI= 0.60 to 1.24; p= 0.430). Conclusion: Secondary education reduced exclusive breastfeeding, but it was statistically non-significant. Keywords: exclusive breastfeeding, secondary education, postpartum Correspondence: Ferda Fibi Tyas Nurkholifa. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: [email protected]. Mobile: +6285655778863. DOI: https://doi.org/10.26911/the7thicph.03.131

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