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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 11 of 11 Research Studies DisplayedSerang S, Jacobucci R, Brimhall KC
Exploratory mediation analysis via regularization.
The researchers propose a two-stage approach called exploratory mediation analysis via regularization (XMed). They demonstrate that this approach is able to correctly identify mediators more often than conventional approaches and that its estimates are unbiased. Finally, their approach is illustrated through an empirical example examining the relationship between college acceptance and enrollment.
AHRQ-funded; HS024650.
Citation: Serang S, Jacobucci R, Brimhall KC .
Exploratory mediation analysis via regularization.
Struct Equ Modeling 2017;24(5):733-44. doi: 10.1080/10705511.2017.1311775.
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Keywords: Health Services Research (HSR), Research Methodologies
Ji X, Machiraju R, Ritter A
Visualizing article similarities via sparsified article network and map projection for systematic reviews.
In this study, the authors visualized article similarities to extend its utilization in practical settings for SR researchers, aiming to promote human comprehension of article distributions and hidden patterns. To prompt an effective visualization in an interpretable, intuitive, and scalable way, they implemented a graph-based network visualization with three network sparsification approaches and a distance-based map projection via dimensionality reduction.
AHRQ-funded; HS025047.
Citation: Ji X, Machiraju R, Ritter A .
Visualizing article similarities via sparsified article network and map projection for systematic reviews.
Stud Health Technol Inform 2017;245:422-26.
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Keywords: Data, Evidence-Based Practice, Health Services Research (HSR), Research Methodologies
Mortensen ML, Adam GP, Trikalinos TA
An exploration of crowdsourcing citation screening for systematic reviews.
This study explored the use of crowdsourcing (distributing tasks to untrained workers via the web) to reduce the cost of screening citations. Crowdworkers completed screening in 4 to 17 days, costing $460 to $2220, a cost reduction of up to 88 percent compared to trained experts. Crowdsourcing may represent a useful approach to reducing the cost of identifying literature for systematic reviews.
AHRQ-funded; HS025024.
Citation: Mortensen ML, Adam GP, Trikalinos TA .
An exploration of crowdsourcing citation screening for systematic reviews.
Res Synth Methods 2017 Sep;8(3):366-86. doi: 10.1002/jrsm.1252.
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Keywords: Evidence-Based Practice, Health Services Research (HSR), Research Methodologies
Marin JR, Mills AM
Developing a research agenda to optimize diagnostic imaging in the emergency department: an executive summary of the 2015 Academic Emergency Medicine Consensus Conference.
The 2015 Academic Emergency Medicine consensus conference, "Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization" was held on May 12, 2015, with the goal of developing a high-priority research agenda on which to base future research. The authors describe the specific aims of the conference and the methods used to achieve consensus.
AHRQ-funded; HS023498.
Citation: Marin JR, Mills AM .
Developing a research agenda to optimize diagnostic imaging in the emergency department: an executive summary of the 2015 Academic Emergency Medicine Consensus Conference.
Pediatr Emerg Care 2015 Dec;31(12):876-82. doi: 10.1097/pec.0000000000000636.
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Keywords: Imaging, Emergency Department, Health Services Research (HSR), Research Methodologies
Marin JR, Mills AM
Developing a research agenda to optimize diagnostic imaging in the emergency department: an executive summary of the 2015 Academic Emergency Medicine Consensus Conference.
The 2015 Academic Emergency Medicine consensus conference, "Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization" was held on May 12, 2015, with the goal of developing a high-priority research agenda on which to base future research. The authors describe the specific aims of the conference and the methods used to achieve consensus.
AHRQ-funded; HS023498.
Citation: Marin JR, Mills AM .
Developing a research agenda to optimize diagnostic imaging in the emergency department: an executive summary of the 2015 Academic Emergency Medicine Consensus Conference.
Acad Emerg Med 2015 Dec;22(12):1363-71. doi: 10.1111/acem.12818.
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Keywords: Imaging, Emergency Department, Health Services Research (HSR), Research Methodologies
Holzer J, Kass N
Understanding the supports of and challenges to community engagement in the CTSAs.
The researchers sought to understand the supports and challenges experienced by multiple Clinical and Translational Science Awards programs as they pursued community engagement. The interviews identified three support themes, including: funding, existing relationships with communities, and leadership and a partnership approach at the institution. Six challenge themes arose: need for capacity development, lack of positive relationships with communities, lack of leadership, funding constraints, time and staff constraints, and unsustainable models.
AHRQ-funded; HS017589.
Citation: Holzer J, Kass N .
Understanding the supports of and challenges to community engagement in the CTSAs.
Clin Transl Sci 2015 Apr;8(2):116-22. doi: 10.1111/cts.12205..
Keywords: Community Partnerships, Community-Based Practice, Health Services Research (HSR), Research Methodologies
Chen Y, Hong C, Riley RD
An alternative pseudolikelihood method for multivariate random-effects meta-analysis.
This paper describes the standard likelihood inferences for multivariate meta-analysis (MMA) and the proposed pseudolikelihood method. The authors next extend the proposed method to the missing data situation where only a proportion of studies have all outcomes reported. They then conduct simulation studies to compare the proposed method with the current methods and investigate the prevalence of singular covariance matrix problems, bias, coverage probability (CP), and relative efficiency (RE). Finally, they apply the proposed method to three meta-analyses.
AHRQ-funded; HS022900.
Citation: Chen Y, Hong C, Riley RD .
An alternative pseudolikelihood method for multivariate random-effects meta-analysis.
Stat Med 2015 Feb 10;34(3):361-80. doi: 10.1002/sim.6350..
Keywords: Research Methodologies, Health Services Research (HSR)
Shamseer L, Moher D, Clarke M
Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation.
The PRISMA-P checklist contains 17 items considered to be essential and minimum components of a systematic review or meta-analysis protocol. This PRISMA-P 2015 Explanation and Elaboration paper provides readers with a full understanding of and evidence about the necessity of each item as well as a model example from an existing published protocol. This paper should be read together with the PRISMA-P 2015 statement.
AHRQ-funded; 290200710059I.
Citation: Shamseer L, Moher D, Clarke M .
Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation.
BMJ 2015 Jan 2;349:g7647. doi: 10.1136/bmj.g7647..
Keywords: Research Methodologies, Health Services Research (HSR), Evidence-Based Practice
Guise JM, Chang C, Viswanathan M
AHRQ Author: Chang C, Berliner E
Agency for Healthcare Research and Quality Evidence-based Practice Center methods for systematically reviewing complex multicomponent health care interventions.
The purpose of this AHRQ EPC methods white paper was to outline approaches to conducting systematic reviews of complex multicomponent health care interventions. It provided a framework for synthesizing studies of multicomponent interventions and also provided an initial list of critical reporting elements for such studies in order to help systematic reviewers understand the options and tradeoffs available for such reviews.
AHRQ-authored; AHRQ-funded; 290201200010I; 290201200012I; 290201200011I; 290201200015I; 290201200008I; 290201200004C.
Citation: Guise JM, Chang C, Viswanathan M .
Agency for Healthcare Research and Quality Evidence-based Practice Center methods for systematically reviewing complex multicomponent health care interventions.
J Clin Epidemiol 2014 Nov;67(11):1181-91. doi: 10.1016/j.jclinepi.2014.06.010.
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Keywords: Evidence-Based Practice, Healthcare Delivery, Health Services Research (HSR), Patient-Centered Outcomes Research, Research Methodologies
Jaana M, Vartak S, Ward MM
Evidence-based health care management: what is the research evidence available for health care managers?
The authors conducted a scoping review of systematic reviews and meta-analyses to determine the availability and accessibility of evidence for health care managers. They found that 96.5% of their search results were not on target, and they suggested a better classification within PubMed to increase the accessibility of meaningful resources and to facilitate evidence retrieval. They recommended that health care journals take initiatives encouraging the publication of reviews in relevant management areas.
AHRQ-funded; HS018396.
Citation: Jaana M, Vartak S, Ward MM .
Evidence-based health care management: what is the research evidence available for health care managers?
Eval Health Prof 2014 Sep;37(3):314-34. doi: 10.1177/0163278713511325.
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Keywords: Evidence-Based Practice, Health Services Research (HSR), Research Methodologies
Holzer JK, Ellis L, Merritt MW
Why we need community engagement in medical research.
The aim of this article was to illustrate how community engagement can help to remedy shortfalls of community trust, participant enrollment, and uptake of research findings. After briefly describing these shortfalls, the authors considered 3 case examples that demonstrate the potential of community engagement to address each. They also discussed the ethical importance and implications of demonstrating respect for the community.
AHRQ-funded; HS017589.
Citation: Holzer JK, Ellis L, Merritt MW .
Why we need community engagement in medical research.
J Investig Med 2014 Aug;62(6):851-5. doi: 10.1097/jim.0000000000000097..
Keywords: Health Services Research (HSR), Patient-Centered Outcomes Research, Research Methodologies, Implementation