Exact inference for fixed ‐effects meta‐analysis of proportions
This article is protected by copyright. All rights reserved. (Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 20, 2021 Category: Chemistry Authors: Spencer Hansen,
Ken Rice Tags: RESEARCH ARTICLE Source Type: research
Rapid evidence synthesis approach for limits on the search date: how rapid could it be?
This article is protected by copyright. All rights reserved. (Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 16, 2021 Category: Chemistry Authors: Chang Xu,
Ke Ju,
Lifeng Lin,
Pengli Jia,
Joey S. W. Kwong,
Asma Syed,
Luis Furuya ‐Kanamori Tags: RESEARCH ARTICLE Source Type: research
Cumulative meta ‐analysis: What works
To present time-varying evidence, cumulative meta-analysis (CMA) updates results of previous meta-analyses to incorporate new study results. We investigate the properties of CMA, suggest possible improvements and provide the first in-depth simulation study of the use of CMA and CUSUM methods for detection of temporal trends in random-effects meta-analysis. We use the standardized mean difference (SMD) as an effect measure of interest. For CMA, we compare the standard inverse-variance-weighted estimation of the overall effect using REML-based estimation of between-study variance τ2 with the sample-size-weighted estimation ...
Source: Research Synthesis Methods - September 14, 2021 Category: Chemistry Authors: Elena Kulinskaya,
Eung Yaw Mah Tags: RESEARCH ARTICLE Source Type: research
Searching for medical devices ‐ practical guidance
This article is protected by copyright. All rights reserved. (Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 8, 2021 Category: Chemistry Authors: Chris Cooper,
Sarah Dawson,
Carol Lefebvre Tags: BRIEF METHOD NOTE Source Type: research
Identifying evidence for five realist reviews in primary health care: a comparison of search methods
ConclusionsOur analysis demonstrates the diverse data sources used within realist reviews and the need for flexible, responsive efforts to identify relevant documents. Reviewers and information specialists should devise approaches to data gathering that reflect the individual needs of realist review projects and report these transparently.This article is protected by copyright. All rights reserved. (Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 8, 2021 Category: Chemistry Authors: Claire Duddy,
Nia Roberts Tags: RESEARCH ARTICLE Source Type: research
The age of abundant scholarly information and its synthesis – A time when ‘just google it’ is no longer enough
AbstractAcademic research has changed in recent years. It has entered the age of abundant scholarly information. New scientometric data shows impressive increases in both the quantity and quality of information researchers produce. Since 2007 about the same number of publications have become accessible on databases as more than the hundred years prior. At the same time, evidence synthesis has become key in making this wealth of information understandable and useful. Researchers need to be increasingly proficient in identifying relevant information – to be able to build on an increasingly comprehensive research base and t...
Source: Research Synthesis Methods - September 7, 2021 Category: Chemistry Authors: Michael Gusenbauer Tags: DISCUSSION PAPER Source Type: research
Response to Gusenbauer M, Haddaway NR “What every researcher should know about searching – Clarified concepts, search advice, and an agenda to improve finding in academia”
(Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 7, 2021 Category: Chemistry Authors: Kelly Johnson,
Kate Ghezzi ‐Kopel,
Erin Eldermire,
Chris Fournier,
Erica Johns,
Amelia Kallaher,
Matthew Kibbee,
Christian Miller Tags: Letter to the Editor Source Type: research
Methods for population adjustment with limited access to individual patient data: A review and simulation study
AbstractPopulation-adjusted indirect comparisons estimate treatment effects when access to individual patient data is limited and there are cross-trial differences in effect modifiers. Popular methods include matching-adjusted indirect comparison (MAIC) and simulated treatment comparison (STC). There is limited formal evaluation of these methods and whether they can be used to accurately compare treatments. Thus, we undertake a comprehensive simulation study to compare standard unadjusted indirect comparisons, MAIC and STC across 162 scenarios. This simulation study assumes that the trials are investigating survival outcom...
Source: Research Synthesis Methods - September 6, 2021 Category: Chemistry Authors: Antonio Remiro ‐Azócar,
Anna Heath,
Gianluca Baio Tags: RESEARCH ARTICLE Source Type: research
A confidence interval robust to publication bias for random ‐effects meta‐analysis of few studies
AbstractIn meta-analyses including only few studies, the estimation of the between-study heterogeneity is challenging. Furthermore, the assessment of publication bias is difficult as standard methods such as visual inspection or formal hypothesis tests in funnel plots do not provide adequate guidance. Previously, Henmi and Copas (Statistics in Medicine 2010, 29: 2969 –2983) proposed a confidence interval for the overall effect in random-effects meta-analysis that is robust to publication bias to some extent. As is evident from their simulations, the confidence intervals have improved coverage compared with standard metho...
Source: Research Synthesis Methods - September 5, 2021 Category: Chemistry Authors: Masayuki Henmi,
Satoshi Hattori,
Tim Friede Tags: BRIEF METHOD NOTE Source Type: research
CLUSTER searching approach to inform evidence syntheses: A methodological review
ConclusionsEvidence suggests that CLUSTER has been adopted for use in reviews of complex interventions. Its usage varied among the included reviews. It is imperative that future reviewers diligently report the elements and steps of CLUSTER that were utilised in order to provide a reproducible and transparent search strategy that can be reported with similar transparency to bibliographic database searches. (Source: Research Synthesis Methods)
Source: Research Synthesis Methods - September 5, 2021 Category: Chemistry Authors: Anthony Tsang,
Michelle Maden Tags: REVIEW Source Type: research
