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Search All Research Studies
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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 10 of 10 Research Studies DisplayedAhmad FS, Ricket IM, Hammill BG BG
Computable phenotype implementation for a national, multicenter pragmatic clinical trial: lessons learned from ADAPTABLE.
This methods paper provides an overview of the development and implementation of a computable phenotype in ADAPTABLE (Aspirin Dosing: a Patient-Centric Trial Assessing Benefits and Long-Term Effectiveness)--a pragmatic, randomized, open-label clinical trial testing the optimal dose of aspirin for secondary prevention of atherosclerotic cardiovascular disease events. Lessons learned included the following: the accuracy and utility of a computable phenotype are dependent on the quality of the source data; local validation and modification were required based on site factors; and sustained collaboration among a diverse team of researchers is needed during development and implementation. The ADAPTABLE computable phenotype served as an efficient method to recruit patients in a multisite pragmatic clinical trial.
AHRQ-funded; HS026385.
Citation: Ahmad FS, Ricket IM, Hammill BG BG .
Computable phenotype implementation for a national, multicenter pragmatic clinical trial: lessons learned from ADAPTABLE.
Circ Cardiovasc Qual Outcomes 2020 Jun;13(6):e006292. doi: 10.1161/circoutcomes.119.006292..
Keywords: Patient-Centered Outcomes Research, Research Methodologies, Heart Disease and Health, Cardiovascular Conditions
Fanaroff AC, Vora AN, Chen AY
Hospital participation in clinical trials for patients with acute myocardial infarction: results from the National Cardiovascular Data Registry.
Using the nationwide Chest Pain-MI registry, the authors described the proportion of hospitals that enrolled patients with acute myocardial infarction (MI) in clinical trials from 2009 to 2014. They concluded that hospitals are becoming less likely to engage in clinical trials for patients with MI, and that patients admitted to hospitals that participated in clinical trials more often received guideline-adherent care and had better long-term outcomes.
AHRQ-funded; HS021092.
Citation: Fanaroff AC, Vora AN, Chen AY .
Hospital participation in clinical trials for patients with acute myocardial infarction: results from the National Cardiovascular Data Registry.
Am Heart J 2019 Aug;214:184-93. doi: 10.1016/j.ahj.2019.05.011..
Keywords: Cardiovascular Conditions, Heart Disease and Health, Registries, Research Methodologies
Hsu YJ, Kosinski AS, Wallace AS
Using a society database to evaluate a patient safety collaborative: the Cardiovascular Surgical Translational Study.
The authors assessed the utility of using external databases for quality improvement (QI) evaluations in the context of an innovative QI collaborative aimed to reduce three infections and improve patient safety across the cardiac surgery service line. They compared changes in each outcome between 15 intervention hospitals and 52 propensity score-matched hospitals, and found that improvement trends in several outcomes among the studied intervention hospitals were not statistically different from those in comparison hospitals. They conclude that using external databases may permit comparative effectiveness assessment by providing concurrent comparison groups, additional outcome measures, and longer follow-up.
AHRQ-funded; HS019934.
Citation: Hsu YJ, Kosinski AS, Wallace AS .
Using a society database to evaluate a patient safety collaborative: the Cardiovascular Surgical Translational Study.
J Comp Eff Res 2019 Jan;8(1):21-32. doi: 10.2217/cer-2018-0051..
Keywords: Patient Safety, Quality Improvement, Quality Indicators (QIs), Quality of Care, Surgery, Cardiovascular Conditions, Comparative Effectiveness, Data, Hospitals, Research Methodologies, Patient-Centered Outcomes Research
Desai RJ, Wyss R, Jin Y
Extension of disease risk score-based confounding adjustments for multiple outcomes of interest: an empirical evaluation.
Use of disease risk score (DRS)-based confounding adjustment when estimating treatment effects on multiple outcomes is not well studied. In this empirical cohort study, the investigators compared dabigatran initiators and warfarin initiators with respect to risks of ischemic stroke and major bleeding in 12 sequential monitoring periods (90 days each), using data from the Truven Marketscan database (Truven Health Analytics, Ann Arbor, Michigan).
AHRQ-funded; HS022193.
Citation: Desai RJ, Wyss R, Jin Y .
Extension of disease risk score-based confounding adjustments for multiple outcomes of interest: an empirical evaluation.
Am J Epidemiol 2018 Nov;187(11):2439-48. doi: 10.1093/aje/kwy130.
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Keywords: Blood Thinners, Cardiovascular Conditions, Medication, Outcomes, Research Methodologies, Risk, Stroke
Roumie CL, Patel NJ, Munoz D
Design and outcomes of the Patient Centered Outcomes Research Institute coronary heart disease cohort study.
The objective was to electronically identify, recruit, and survey coronary heart disease (CHD) patients and describe their characteristics and willingness to participate in future research. The majority reported that their health was good or very good, while 40 percent reported that their general and physical health were fair or poor. A patient sample was provided with a trial summary which would randomize their aspirin dose; and 63 percent reported that they would consider participating.
AHRQ-funded; HS022990.
Citation: Roumie CL, Patel NJ, Munoz D .
Design and outcomes of the Patient Centered Outcomes Research Institute coronary heart disease cohort study.
Contemp Clin Trials Commun 2018 Jun;10:42-49. doi: 10.1016/j.conctc.2018.03.001.
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Keywords: Cardiovascular Conditions, Heart Disease and Health, Patient-Centered Outcomes Research, Research Methodologies
Engelgau MM, Narayan KMV, Ezzati M
AHRQ Author: Meyers D
Implementation research to address the United States health disadvantage: report of a National Heart, Lung, and Blood Institute workshop.
This paper discusses the meeting of a panel of national and international health experts and stakeholders for a Think Tank meeting to explore the U.S. health disadvantage and to seek specific recommendations for implementation research opportunities for heart, lung, blood, and sleep disorders, convened by the National Heart, Lung, and Blood Institute.
AHRQ-authored.
Citation: Engelgau MM, Narayan KMV, Ezzati M .
Implementation research to address the United States health disadvantage: report of a National Heart, Lung, and Blood Institute workshop.
Glob Heart 2018 Jun;13(2):65-72. doi: 10.1016/j.gheart.2018.03.003.
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Keywords: Cardiovascular Conditions, Guidelines, Research Methodologies
Stocco FG, Evaristo E, Shah NR
Marked exercise-induced T-wave heterogeneity in symptomatic diabetic patients with nonflow-limiting coronary artery stenosis.
The authors investigated whether T-wave heterogeneity (TWH) is elevated during exercise tolerance testing (ETT) in symptomatic diabetic patients with nonflow-limiting coronary artery stenosis compared to control subjects without diabetes. They found that TWH is capable of detecting latent repolarization abnormalities, which are present during ETT in diabetic patients with nonflow-limiting stenosis but not in control subjects. They concluded that the technique developed in this study permits TWH analysis from archived ECGs and thereby enables mining of extensive databases for retrospective studies and hypothesis testing.
AHRQ-funded; HS022998.
Citation: Stocco FG, Evaristo E, Shah NR .
Marked exercise-induced T-wave heterogeneity in symptomatic diabetic patients with nonflow-limiting coronary artery stenosis.
Ann Noninvasive Electrocardiol 2018 Mar;23(2):e12503. doi: 10.1111/anec.12503.
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Keywords: Cardiovascular Conditions, Data, Diabetes, Research Methodologies
Kim DH, Uno H, Wei J
Restricted mean survival time as a measure to interpret clinical trial results.
In this article, the investigators explain how different measures of treatment effect are interpreted for evidence-based communication, and their caveats, using the 5-year follow- up data from the Placement of Aortic Transcatheter Valves (PARTNER) A and B trials as an example.
AHRQ-funded; HS022193.
Citation: Kim DH, Uno H, Wei J .
Restricted mean survival time as a measure to interpret clinical trial results.
JAMA Cardiol 2017 Nov;2(11):1179-80. doi: 10.1001/jamacardio.2017.2922..
Keywords: Cardiovascular Conditions, Evidence-Based Practice, Research Methodologies
Cohen DJ, Balasubramanian BA, Gordon L
A national evaluation of a dissemination and implementation initiative to enhance primary care practice capacity and improve cardiovascular disease care: the ESCALATES study protocol.
This paper describes the study protocol for the EvidenceNOW national evaluation, which is called Evaluating System Change to Advance Learning and Take Evidence to Scale (ESCALATES). Quantitative, qualitative, and mixed methods analyses will be conducted to examine how Cooperatives organize to provide external support to practices, to compare effectiveness of the dissemination and implementation approaches they implement, and to examine how regional variations and other organization and contextual factors influence implementation and effectiveness.
AHRQ-funded; HS022981; HS023940.
Citation: Cohen DJ, Balasubramanian BA, Gordon L .
A national evaluation of a dissemination and implementation initiative to enhance primary care practice capacity and improve cardiovascular disease care: the ESCALATES study protocol.
Implement Sci 2016 Jun 29;11(1):86. doi: 10.1186/s13012-016-0449-8.
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Keywords: Cardiovascular Conditions, Evidence-Based Practice, Patient-Centered Healthcare, Patient-Centered Outcomes Research, Prevention, Primary Care, Research Methodologies
Irvin VL, Kaplan RM
AHRQ Author: Kaplan RM
Effect sizes and primary outcomes in large-budget, cardiovascular-related behavioral randomized controlled trials funded by NIH since 1980.
The authors reviewed large-budget, National Institutes of Health (NIH)-supported randomized controlled trials (RCTs) with behavioral interventions to assess (1) publication rates, (2) trial registration, (3) use of objective measures, (4) significant behavior and physiological change, and (5) effect sizes. They concludedc that behavioral trials complied with trial registration standards. Most reported a physiological benefit, but few documented morbidity or mortality benefits.
AHRQ-authored.
Citation: Irvin VL, Kaplan RM .
Effect sizes and primary outcomes in large-budget, cardiovascular-related behavioral randomized controlled trials funded by NIH since 1980.
Ann Behav Med 2016 Feb;50(1):130-46. doi: 10.1007/s12160-015-9739-7.
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Keywords: Outcomes, Cardiovascular Conditions, Research Methodologies, Behavioral Health