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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.
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1 to 5 of 5 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
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
Goedken AM, Lund BC, Cook EA
Application of a framework for determining number of drugs.
The purpose of the study was to propose a framework and illustrate how that framework can be used to create and succinctly describe various approaches to counting the number of drugs used by patients and to examine the impact of varying individual components of the framework on the resulting drug count.
AHRQ-funded; HS018381.
Citation: Goedken AM, Lund BC, Cook EA .
Application of a framework for determining number of drugs.
BMC Res Notes 2016 May 13;9:272. doi: 10.1186/s13104-016-2076-5.
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Keywords: Medication, Research Methodologies, Heart Disease and Health, Medicare
Brouwer ES, Napravnik S, Eron JJ, Jr.
Validation of Medicaid claims-based diagnosis of myocardial infarction using an HIV clinical cohort.
The investigators aimed to validate claims-based myocardial infarction (MI) algorithms in a Medicaid population using an HIV clinical cohort as the gold standard. Studying 1063 individuals over 2.5 years, 17 had an MI. Specificity ranged from 0.979 to 0.993 with the highest specificity obtained using the ICD-9 code 410.xx in the primary or secondary position and a length of stay greater than 3 days. Sensitivity of MI ascertainment varied from 0.588 to 0.824 depending on algorithm. They recommended that the type of algorithm used be prioritized based on study question and maximization of specific validation parameters that will minimize bias while also considering precision.
AHRQ-funded; HS018731.
Citation: Brouwer ES, Napravnik S, Eron JJ, Jr. .
Validation of Medicaid claims-based diagnosis of myocardial infarction using an HIV clinical cohort.
Med Care 2015 Jun;53(6):e41-8. doi: 10.1097/MLR.0b013e318287d6fd.
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Keywords: Comparative Effectiveness, Human Immunodeficiency Virus (HIV), Medicaid, Heart Disease and Health, Research Methodologies