scholarly journals Use of a search summary table to improve systematic review search methods, results, and efficiency

2021 ◽  
Vol 109 (1) ◽  
Author(s):  
Alison C. Bethel ◽  
Morwenna Rogers ◽  
Rebecca Abbott
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Research Question ◽  
Evidence Base ◽  
Search Methods ◽  
Summary Table ◽  
Recent Systematic Review ◽  
Search Results ◽  
Simple Format

Background: Systematic reviews are comprehensive, robust, inclusive, transparent, and reproducible when bringing together the evidence to answer a research question. Various guidelines provide recommendations on the expertise required to conduct a systematic review, where and how to search for literature, and what should be reported in the published review. However, the finer details of the search results are not typically reported to allow the search methods or search efficiency to be evaluated.Case Presentation: This case study presents a search summary table, containing the details of which databases were searched, which supplementary search methods were used, and where the included articles were found. It was developed and published alongside a recent systematic review. This simple format can be used in future systematic reviews to improve search results reporting.Conclusions: Publishing a search summary table in all systematic reviews would add to the growing evidence base about information retrieval, which would help in determining which databases to search for which type of review (in terms of either topic or scope), what supplementary search methods are most effective, what type of literature is being included, and where it is found. It would also provide evidence for future searching and search methods research.

E-voting adoption in many countries: A literature review

2021 ◽  
pp. 205789112110405
Author(s):  
Ikhsan Darmawan
Keyword(s):  
United States ◽  
Systematic Review ◽  
Literature Review ◽  
Single Case ◽  
Research Question ◽  
The United States ◽  
Single Case Study ◽  
Academic Publications ◽  
Research Questions

Although the number of countries that have adopted e-voting has decreased lately, the number of academic publications on e-voting adoption has increased in the last two years. To date, there is no coherent narrative in the existing literature that explains the progress of the research on e-voting adoption. This article aims to answer the following research question: “How has research on the topic of e-voting adoption progressed over the last 15 years?” The article provides a semi-systematic review of 78 studies that were conducted from 2005 to 2020. In this article, I argue that although the studies on e-voting adoption are dominated by a single case study, by research in the United States, and by the positivist paradigm, scholars have employed the term “e-voting adoption” diversely and the research on e-voting adoption has evolved to address more specific research questions. Recommendations for the future agenda of research on e-voting adoption are also discussed.

scholarly journals Examination of the Clinical Queries and Systematic Review “hedges” in EMBASE and MEDLINE

2014 ◽  
Vol 31 (2) ◽  
pp. 27 ◽  
Author(s):  
Susan M. Bradley
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Major Error ◽  
National Library ◽  
Search Queries ◽  
Search Results ◽  
Quality Control Testing ◽  
Search Filters ◽  
The One ◽  
Clinical Queries

Introduction – This investigation sought to determine whether the methodological search filters in place as Clinical Queries limits in OvidSP EMBASE and OvidSP MEDLINE had been modified from those written by Haynes et al. and whether the translations of these in PubMed and EBSCO MEDLINE were reliable. The translated National Library of Medicine (NLM) Systematic Reviews hedges in place in OvidSP MEDLINE and EBSCO MEDLINE were also examined. Methods – Search queries were run using the Clinical Queries and Systematic Reviews hedges incorporated into OvidSP EMBASE, OvidSP MEDLINE, PubMed, and EBSCO MEDLINE to determine the reliability of these limits in comparison with the published hedge search strings. Results – Five of the OvidSP EMBASE Clinical Queries hedges produced results that were different from the published search strings. Three of the EBSCO MEDLINE and five of the PubMed translated Clinical Queries hedges yielded markedly different results (>10% difference) than those obtained using the OvidSP MEDLINE hedge counterparts. The OvidSP MEDLINE Systematic Reviews subject subset hedge was found to have a major error, which has been corrected. Discussion – Translations of hedges to appropriate syntax for other database platforms may result in significantly different search results. The platform searched should ideally be the one for which the hedges were written and tested. Regardless, the hedges in place may not be the same as the published hedge search strings. Quality control testing is needed to ensure that the hedges in place as limits are the same as those that have been published.

scholarly journals Health Informatics in Developing Countries: Systematic Review of Reviews Contribution of the IMIA Working Group Health Informatics for Development

2013 ◽  
Vol 22 (01) ◽  
pp. 28-33
Author(s):  
C. Otero ◽  
A. Marcelo ◽  
D. Luna
Keyword(s):  
Systematic Review ◽  
Developing Countries ◽  
Systematic Reviews ◽  
Health Informatics ◽  
Evidence Base ◽  
Search Term ◽  
Manual Search ◽  
Time Period ◽  
Different Types ◽  
Review Of Reviews

Summary Objectives: An evidence-base is important for medicine and health informatics. Despite numerous publications showing the benefits of health informatics, the emergence of health information systems in developing countries has been slower than expected. The aim of this paper is to identify systematic reviews on the domain of health informatics in developing countries, and classify the different types of applications covered. Methods: A systematic review of reviews was conducted. The literature search spanned the time period between 2000 and 2012 and included PubMed, EMBASE, CINAHL, Scopus, Cochrane Systematic Reviews, LILACS, and Google Scholar. The search term was ‘systematic reviews of health informatics in developing countries’, and transparent and systematic procedures were applied to limit bias at all stages. Results: Of the 982 identified articles, only 10 met the inclusion criteria and one more article was added in a second manual search, resulting in a total of 11 systematic reviews for the analysis. Conclusions: Although it was difficult to find high quality resources on the selected domain, the best evidence available allowed us to generate this report and create an incipient review of the state of the art in health informatics in the developing countries. More studies will be needed to optimize the results.

scholarly journals Umbrella systematic review of systematic reviews and meta-analyses on comorbid physical conditions in people with autism spectrum disorder

2020 ◽  
Vol 218 (1) ◽  
pp. 10-19 ◽  
Author(s):  
Ewelina Rydzewska ◽  
Kirsty Dunn ◽  
Sally-Ann Cooper
Keyword(s):  
Systematic Review ◽  
Autism Spectrum Disorder ◽  
Systematic Reviews ◽  
Sleep Problems ◽  
Evidence Base ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Physical Conditions ◽  
Sensory Impairments ◽  
Meta Analyses

BackgroundComorbid physical conditions may be more common in people with autism spectrum disorder (ASD) than other people.AimsTo identify what is and what is not known about comorbid physical conditions in people with ASD.MethodWe undertook an umbrella systematic review of systematic reviews and meta-analyses on comorbid physical conditions in people with ASD. Five databases were searched. There were strict inclusion/exclusion criteria. We undertook double reviewing for eligibility, systematic data extraction and quality assessment. Prospective PROSPERO registration: CRD42015020896.ResultsIn total, 24 of 5552 retrieved articles were included, 15 on children, 1 on adults, and 8 both on children and adults. Although the quality of included reviews was good, most reported several limitations in the studies they included and considerable heterogeneity. Comorbid physical conditions are common, and some are more prevalent than in the general population: sleep problems, epilepsy, sensory impairments, atopy, autoimmune disorders and obesity. Asthma is not. However, there are substantial gaps in the evidence base. Fewer studies have been undertaken on other conditions and some findings are inconsistent.ConclusionsComorbid physical conditions occur more commonly in people with ASD, but the evidence base is slim and more research is needed. Some comorbidities compound care if clinicians are unaware, for example sensory impairments, given the communication needs of people with ASD. Others, such as obesity, can lead to an array of other conditions, disadvantages and early mortality. It is essential that potentially modifiable physical conditions are identified to ensure people with ASD achieve their best outcomes. Heightening clinicians’ awareness is important to aid in assessments and differential diagnoses, and to improve healthcare.

scholarly journals Additional Search Strategies May Not Be Necessary for a Rapid Systematic Review

2015 ◽  
Vol 10 (2) ◽  
pp. 150
Author(s):  
Joanne L. Jordan
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Reference Lists ◽  
Meta Analysis ◽  
Search Strategies ◽  
Risk Of Bias ◽  
Chronic Depression ◽  
Randomized Controlled ◽  
Central Database

A Review of: Westphal, A., Kriston, L., Hölzel, L.P., Härter, M., & von Wolff, A. (2014). Efficiency and contribution of strategies for finding randomized controlled trials: a case study from a systematic review on therapeutic interventions of chronic depression. Journal of Public Health Research, 3(2), 177. doi: 10.4081/jphr.2014.177 Abstract Objective – To evaluate the efficiency and contribution of additional searching strategies for finding randomized controlled trials (RCTs) in a systematic review. Design – A methodological case study. Setting – Biomedical literature. Methods – A sensitive search (defined as “the ratio of the number of relevant reports identified to the total number of relevant reports in existence”) was conducted of electronic databases, Cochrane CENTRAL database, MEDLINE, EMBASE, PsycInfo, CINAHL, BIOSIS, and Web of Science databases (Science and Social Science Citation Indexes). The following additional searching strategies were conducted: hand-searching contents of relevant journals (Archives of General Psychiatry, Journal of Consulting and Clinical Psychology, and Journal of Affective Disorders), citation tracking (forwards tracking using Social Science and Science Citation Index and backwards tracking by looking through reference lists of included studies), screening reference lists of relevant systematic reviews, searching clinical trials registers (ClinicalTrials.gov and ICTRP registers), and contacting first authors of included studies to find any similar unpublished studies. The number of articles identified by each of these methods was recorded and screened for inclusion in the systematic review. The authors calculated what they labelled as the ‘efficiency’ of each searching strategy (the number of included studies identified by the search method as a proportion of the full text articles screened) and the ‘contribution’ of the search strategies (the ratio of included studies identified by that method to the final number of included studies in the systematic review). The methodological quality of each included study was assessed using the Cochrane Risk of Bias Tool, which is a critical appraisal checklist used to judge the study’s value in the systematic review. The meta-analysis in the systematic review was conducted with and without the studies identified by the additional searching strategies to assess their impact on the review’s findings. Main Results – In total 50 studies were identified, 42 from electronic database searches and 8 from additional search strategies. As illustrated by the results in Table 1, the most useful additional search strategy was screening reference lists of relevant systematic reviews. Journal hand-searching and contacting authors also contributed to the review. Of the eight studies identified by the additional search strategies none were judged to have a low risk of bias (four had high risk of bias and four were unclear). Of the 42 included studies from electronic searches only 11 were judged to have a low risk of bias, whereas 9 studies had a high risk of bias and 22 were unclear. Excluding the eight studies retrieved from additional search strategies in the systematic review meta-analysis did not influence the results on the effectiveness of the different interventions for chronic depression. These studies were found to be indexed correctly on the electronic databases, but were not identified in the initial search. Conclusion – Additional search strategies, especially screening reference lists of systematic reviews and hand-searching relevant journals, retrieved a substantial number of relevant studies for a systematic review of interventions for treating chronic depression. However, results of the review’s meta-analysis did not differ when these additional studies (rated as either high or unclear risk of bias) were not included and search methods were time consuming. It might be reasonable to rely on electronic searching strategies when resources for conducting a systematic review are limited or when doing a “rapid review.” The benefits and limitations of additional search strategies should be considered particularly when resources or time for conducting a systematic review are limited. If the electronic database search is sensitive and includes the Cochrane CENTRAL database additional search strategies may not be necessary, but these findings should be tested in other research areas.

A systematic review of outcomes and lessons learned from general, rural, and country-specific Water Safety Plan implementations

2016 ◽  
Vol 16 (6) ◽  
pp. 1580-1594 ◽  
Author(s):  
Gabrielle String ◽  
Daniele Lantagne
Keyword(s):  
Systematic Review ◽  
Community Support ◽  
Evidence Base ◽  
Lessons Learned ◽  
Policy Outcomes ◽  
Management Approach ◽  
Management Support ◽  
Water Delivery ◽  
Water Safety

Water Safety Plans (WSPs) are a comprehensive risk assessment and management approach to water delivery that were internationally recommended in 2004. WSPs consist of five implementation steps, followed by evaluation. To date, approximately 90 countries have implemented WSPs; however widespread uptake is limited by lack of documented outcomes and impacts. We conducted a systematic review to collate outcomes, impacts, and lessons learned from WSPs developed in general, rural, and three case-study country contexts. Overall, 53 documents met inclusion criteria. In general contexts, the need for institutional support during WSP implementation was highlighted. In rural applications, the need to simplify the WSP process and provide community support was emphasized. In case-study countries, we found the WSP process was selectively adapted and integrated within existing programs. In outcome and impact evaluations, financial outcomes have the clearest evidence base, while operational outcomes are documented most frequently, particularly in relation to infrastructure improvements. However, evidence is lacking on institutional and policy outcomes and impacts of WSPs. To ensure WSPs reach their potential for improving water delivery and management, support should be provided to implementers, outcomes and impacts of urban, peri-urban, and rural WSP implementations should be evaluated, and adaptation of WSPs locally encouraged.

Depression, Antidepressants and Hypertensive Disorders of Pregnancy: A Systematic Review

2019 ◽  
Vol 14 (2) ◽  
pp. 102-108 ◽  
Author(s):  
Sabrina Youash ◽  
Verinder Sharma
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Gestational Hypertension ◽  
Research Question ◽  
Current Evidence ◽  
Hypertensive Disorders Of Pregnancy ◽  
Hypertension In Pregnancy ◽  
Hypertensive Disorders ◽  
The Relationship ◽  
In Pregnancy

Background: Hypertensive disorders of pregnancy including gestational hypertension, preeclampsia and eclampsia are conditions that cause significant perinatal and maternal morbidity and mortality. </P><P> Objective: This is a systematic review of the current evidence examining the relationship between both depression and antidepressants on pregnancy-related hypertensive conditions. </P><P> Methods: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol, six databases were searched for articles published between January 1990 and December 2017 (PubMed, Embase, PsycINFO, Cochrane Database of Systematic Reviews, MEDLINE and ClinicalTrials. gov). Randomized control trials, cohort studies and case-control studies were included in this review. Studies that measured the following exposures were included: Antidepressant exposure or diagnosis of depression. Studies that measured the following outcomes were included: Gestational hypertension, preeclampsia or eclampsia. A combination of keywords, as well as Medical Subject Headings (MeSH) index terms, was used for three general categories: antidepressants, depression and hypertensive disorders of pregnancy. A total of 743 studies were identified and 711 were excluded based on relevance to the research question. Twenty studies were included in the final systematic review. </P><P> Results: Of the twenty relevant studies, ten specifically examined the relationship between depression and hypertension in pregnancy. Only two of these did not find a significant association. Of the ten studies that concentrated on antidepressant medications, all except one found an association with hypertension in pregnancy to varying degrees. </P><P> Conclusion: Review of the literature suggests a possible association between depression and antihypertensive medications with pregnancy-related hypertension, but further studies are needed.</P>

scholarly journals Extended use or reuse of single-use surgical masks and filtering face-piece respirators during the coronavirus disease 2019 (COVID-19) pandemic: A rapid systematic review

2020 ◽  
Vol 42 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Elaine C. Toomey ◽  
Yvonne Conway ◽  
Chris Burton ◽  
Simon Smith ◽  
Michael Smalle ◽  
...  
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Data Extraction ◽  
Evidence Base ◽  
World Health ◽  
Healthcare Organizations ◽  
Surgical Masks ◽  
Single Use ◽  
Current Guidance ◽  
The Impact

AbstractBackground:Shortages of personal protective equipment during the coronavirus disease 2019 (COVID-19) pandemic have led to the extended use or reuse of single-use respirators and surgical masks by frontline healthcare workers. The evidence base underpinning such practices warrants examination.Objectives:To synthesize current guidance and systematic review evidence on extended use, reuse, or reprocessing of single-use surgical masks or filtering face-piece respirators.Data sources:We used the World Health Organization, the European Centre for Disease Prevention and Control, the US Centers for Disease Control and Prevention, and Public Health England websites to identify guidance. We used Medline, PubMed, Epistemonikos, Cochrane Database, and preprint servers for systematic reviews.Methods:Two reviewers conducted screening and data extraction. The quality of included systematic reviews was appraised using AMSTAR-2. Findings were narratively synthesized.Results:In total, 6 guidance documents were identified. Levels of detail and consistency across documents varied. They included 4 high-quality systematic reviews: 3 focused on reprocessing (decontamination) of N95 respirators and 1 focused on reprocessing of surgical masks. Vaporized hydrogen peroxide and ultraviolet germicidal irradiation were highlighted as the most promising reprocessing methods, but evidence on the relative efficacy and safety of different methods was limited. We found no well-established methods for reprocessing respirators at scale.Conclusions:Evidence on the impact of extended use and reuse of surgical masks and respirators is limited, and gaps and inconsistencies exist in current guidance. Where extended use or reuse is being practiced, healthcare organizations should ensure that policies and systems are in place to ensure these practices are carried out safely and in line with available guidance.

scholarly journals Searching for research results to inform the design of an initial professional teacher education programme for the foundation phase: A systematic review

2016 ◽  
Vol 6 (1) ◽  
pp. 10 ◽  
Author(s):  
Lucinda Du Plooy ◽  
Mphumzi Zilindile ◽  
Zubeida Desai ◽  
Benita De Wet ◽  
Lorna Holtman ◽  
...  
Keyword(s):  
Systematic Review ◽  
Teacher Education ◽  
Systematic Reviews ◽  
Research Question ◽  
Education Programme ◽  
Initial Teacher Education ◽  
Teacher Education Programme ◽  
Process Stage ◽  
Programme Design ◽  
Professional Teacher

<p>This article reports on a systematic review conducted to inform the development of a professional teacher education programme for the foundation phase of schooling. The research question was: What do quality research studies identify as the components and/or characteristics of quality teacher education for the foundation phase programmes that allow new teachers to begin to teach for epistemological access. A search for systematic reviews on educational programmes related to foundation phase for initial teacher education was conducted for the period between 1980 and 2011. The researchers added Stage 0 as a fifth step to the traditional four-step systematic review process. Stage 0 or quasi-tertiary review allowed us to present substantive findings of the identified systematic reviews and to explore their methodological quality. From the initial 2876 hits (mostly health and medical studies), only 19 studies were related to the educational field. Only three of the 19 studies were finally accepted as eligible at Stage 0. None of the reviews directly addressed programme design but contained elements that were considered as useful when designing programmes. The present study makes it clear that there is a dearth of research on entire programmes related to initial teacher education for foundation phase teachers. </p>

Preventive Interventions for the Second Half of Life: A Systematic Review

2017 ◽  
Vol 32 (4) ◽  
pp. 1122-1139 ◽  
Author(s):  
Cother Hajat ◽  
Adriana Selwyn ◽  
Mark Harris ◽  
Derek Yach
Keyword(s):  
Systematic Review ◽  
Healthy Aging ◽  
Data Extraction ◽  
Evidence Base ◽  
Noncommunicable Diseases ◽  
Level Of Evidence ◽  
Summary Table ◽  
Age Related ◽  
Meta Analyses ◽  
The Impact

Objective: Recent improvements in life expectancy globally require intensified focus on noncommunicable diseases and age-related conditions. The purpose of this article is to inform the development of age-specific prevention guidelines for adults aged 50 and above, which are currently lacking. Data Source: PubMed, Cochrane database, and Google Scholar and explicit outreach to experts in the field. Study Inclusion and Exclusion Criteria: Meta-analyses, intervention-based, and prospective cohort studies that reported all-cause mortality, disease-specific mortality, or morbidity in adults were included. Data Extraction: A systematic review was undertaken in 2015 using search terms of a combination of <risk factor> and “intervention,” “mortality,” “reduction,” “improvement,” “death,” and “morbidity.” Data Synthesis: Interventions were categorized according to the Center for Evidence-Based Medicine Level of Evidence framework. Results: A summary table reports for each intervention the impact, strength of evidence, initiation, duration, and details of the intervention. Age-decade-specific preventive recommendations have been proposed relating to physical activity, diet, tobacco and alcohol use, medication adherence, screening and vaccination, and mental and cognitive health. Conclusion: Clear recommendations have been made according to the existing evidence base, but further research investment is needed to fill the many gaps. Further, personalized approaches to healthy aging complemented by population-wide approaches and broader cross-sector partnerships will help to ensure greater longevity is an opportunity, rather than a burden, for society.

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