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Montazeri M, Khajouei R, Afraz A, Ahmadian L. A systematic review of data elements of computerized physician order entry (CPOE): mapping the data to FHIR. Inform Health Soc Care 2023; 48:402-419. [PMID: 37723918 DOI: 10.1080/17538157.2023.2255285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
OBJECTIVE Medication errors are the third leading cause of death. There are several methods to prevent prescription errors, one of which is to use a Computerized Physician Order Entry system (CPOE). In a CPOE system, necessary data needs to be collected so that making decisions about prescribing medications and treatment plans could be made. Although many CPOE systems have been developed worldwide, studies have yet to identify the necessary data and data elements of CPOE systems. This study aims to identify data elements of CPOE and standardize these data with Fast Healthcare Interoperability Resources (FHIR) to facilitate data sharing and integration with the electronic health record (EHR) system and reduce data diversity. METHODS PubMed, Web of Science, Embase, and Scopus databases for studies up to October 2019 were searched. Two reviewers independently assessed original articles to determine eligibility for inclusion in this review. All articles describing data elements of a COPE system were included. Data elements were obtained from the included articles' text, tables, and figures.Classification of the extracted data elements and mapping them to FHIR was done to facilitate data sharing and integration with the electronic health record (EHR) system and reduce data diversity. The final data elements of CPOE were categorized into five main categories of FHIR (foundation, base, clinical, financial, and specialized) and 146 resources, where possible. One of the researchers did mapping and checked and verified by the second researcher. If a data element could not be mapped to any FHIR resources, this data element was considered an extension to the most relevant resource. RESULTS We retrieved 5162 articles through database searches. After the full-text assessment, 21 articles were included. In total, 270 data elements were identified and mapped to the FHIR standard. These elements have been reported in 26 FHIR resources of 146 ones (18%). In total, 71 data elements were considered an extension. CONCLUSIONS The results of this study showed that the same data elements were not used in the CPOE systems, and the degree of homogeneity of these systems is limited. The mapping of extracted data with data elements used in the FHIR standard shows the extent to which these systems comply with existing standards. Considering the standards in these systems' design helps developers design more coherent systems that can share data with other systems.
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Affiliation(s)
- Mahdieh Montazeri
- Medical Informatics Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
- Department of Health Information Sciences, Faculty of Management and Medical Information Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Reza Khajouei
- Department of Health Information Sciences, Faculty of Management and Medical Information Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afraz
- Medical Informatics Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Leila Ahmadian
- Medical Informatics Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
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Göçmen A, Derin N, Metin A, Kariper IA. PROJECT STAR (Midwestern Prevention Project): Overview. JOURNAL OF COMMUNITY PSYCHOLOGY 2022; 50:1361-1375. [PMID: 34599833 DOI: 10.1002/jcop.22720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 08/25/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
The program designed to prevent substance use should be planned in multiple dimensions. One of these programs is Project Star. This study aims to evaluate the studies on the Project Star and identify the strengths and weaknesses of the program. For this purpose, the keywords "Project Star" and "Midwestern Prevention Project" were scanned from databases. The results of these studies were evaluated by giving a summary of the studies included in the study. As a result, the strengths of Project Star are that it is multidimensional, focuses on early development periods, includes the individual's ecological environment, and reduces substance use in later development periods, and not having an internet-based version. This situation has been identified as its weaknesses since its situation in other societies is unknown due to its cost and limited international applications.
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Affiliation(s)
- Aliye Göçmen
- Department of Science Education, Education Faculty, Erciyes University, Kayseri, Turkey
| | - Nur Derin
- Department of Science Education, Education Faculty, Erciyes University, Kayseri, Turkey
| | - Ahmet Metin
- Department of Science Education, Education Faculty, Erciyes University, Kayseri, Turkey
| | - I Afşin Kariper
- Department of Science Education, Education Faculty, Erciyes University, Kayseri, Turkey
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Rana S, Luo W, Tran T, Venkatesh S, Talman P, Phan T, Phung D, Clissold B. Application of Machine Learning Techniques to Identify Data Reliability and Factors Affecting Outcome After Stroke Using Electronic Administrative Records. Front Neurol 2021; 12:670379. [PMID: 34646226 PMCID: PMC8503552 DOI: 10.3389/fneur.2021.670379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 08/30/2021] [Indexed: 01/19/2023] Open
Abstract
Aim: To use available electronic administrative records to identify data reliability, predict discharge destination, and identify risk factors associated with specific outcomes following hospital admission with stroke, compared to stroke specific clinical factors, using machine learning techniques. Method: The study included 2,531 patients having at least one admission with a confirmed diagnosis of stroke, collected from a regional hospital in Australia within 2009-2013. Using machine learning (penalized regression with Lasso) techniques, patients having their index admission between June 2009 and July 2012 were used to derive predictive models, and patients having their index admission between July 2012 and June 2013 were used for validation. Three different stroke types [intracerebral hemorrhage (ICH), ischemic stroke, transient ischemic attack (TIA)] were considered and five different comparison outcome settings were considered. Our electronic administrative record based predictive model was compared with a predictive model composed of "baseline" clinical features, more specific for stroke, such as age, gender, smoking habits, co-morbidities (high cholesterol, hypertension, atrial fibrillation, and ischemic heart disease), types of imaging done (CT scan, MRI, etc.), and occurrence of in-hospital pneumonia. Risk factors associated with likelihood of negative outcomes were identified. Results: The data was highly reliable at predicting discharge to rehabilitation and all other outcomes vs. death for ICH (AUC 0.85 and 0.825, respectively), all discharge outcomes except home vs. rehabilitation for ischemic stroke, and discharge home vs. others and home vs. rehabilitation for TIA (AUC 0.948 and 0.873, respectively). Electronic health record data appeared to provide improved prediction of outcomes over stroke specific clinical factors from the machine learning models. Common risk factors associated with a negative impact on expected outcomes appeared clinically intuitive, and included older age groups, prior ventilatory support, urinary incontinence, need for imaging, and need for allied health input. Conclusion: Electronic administrative records from this cohort produced reliable outcome prediction and identified clinically appropriate factors negatively impacting most outcome variables following hospital admission with stroke. This presents a means of future identification of modifiable factors associated with patient discharge destination. This may potentially aid in patient selection for certain interventions and aid in better patient and clinician education regarding expected discharge outcomes.
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Affiliation(s)
- Santu Rana
- Applied Artificial Intelligence Institute (A2I2), Deakin University, Geelong, VIC, Australia
| | - Wei Luo
- School of Information Technology, Deakin University, Burwood, VIC, Australia
| | - Truyen Tran
- Applied Artificial Intelligence Institute (A2I2), Deakin University, Geelong, VIC, Australia
| | - Svetha Venkatesh
- Applied Artificial Intelligence Institute (A2I2), Deakin University, Geelong, VIC, Australia
| | - Paul Talman
- Neurosciences Department, University Hospital Geelong, Geelong, VIC, Australia
| | - Thanh Phan
- Stroke and Ageing Research Group, Department of Medicine, Monash University, Melbourne, VIC, Australia
| | - Dinh Phung
- Department of Science and AI, Monash University, Clayton, VIC, Australia
| | - Benjamin Clissold
- Neurosciences Department, University Hospital Geelong, Geelong, VIC, Australia.,Stroke and Ageing Research Group, Department of Medicine, Monash University, Melbourne, VIC, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia
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Yang Z, Edwards D, Massou E, Saunders CL, Brayne C, Mant J. Statin use and high-dose statin use after ischemic stroke in the UK: a retrospective cohort study. Clin Epidemiol 2019; 11:495-508. [PMID: 31388316 PMCID: PMC6607979 DOI: 10.2147/clep.s201983] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/29/2019] [Indexed: 12/26/2022] Open
Abstract
Background: Trial evidence supports statin use after ischemic stroke and recent American, European and British guidelines recommend high-intensity statins for this indication. Limited data are available describing current statin use among these patients in unselected settings. We conducted a cohort study to examine secular trends and factors associated with statin use and dose following ischemic stroke. Methods: A retrospective cohort study of patients with first ischemic stroke between 2000 and 2014 was conducted using the Clinical Practice Research Datalink (CPRD). Proportions of statin users and high-intensity statin users within 2 years after stroke were estimated for each calendar year. We used Cox regression models to explore potential factors associated with statin use and Poisson regression models to calculate risk ratios for the use of a high-intensity statin. Results: A total of 80,442 patients with first stroke were analyzed. The proportion using statins within 2 years after stroke increased from 25% in 2000 to 70% in 2006 and remained at about 75% through 2014. Among post-stroke statin users, high-intensity use accounted for approximately 15% between 2004 and 2011 and then increased to almost 35% in 2014. Older patients (aged ≥75 years), younger patients (<45 years), patients with no prior statin treatment, dementia, underweight, or absence of cardiovascular factors (coronary heart disease, smoking, obesity, diabetes, hypertension, or transient ischemic attack) were less likely to use statins and less likely to receive a high-intensity statin. Conclusion: There has been an increase over time in both statin use and dose, but many patients with ischemic stroke continue to be under-treated. Clinical trials and policy interventions to improve appropriate post-stroke statin use should focus on younger and older patients, patients with no pre-stroke statin treatment, and patients without additional cardiovascular risk factors.
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Affiliation(s)
- Zhirong Yang
- Primary Care Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Duncan Edwards
- Primary Care Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Efthalia Massou
- Primary Care Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Catherine L Saunders
- Primary Care Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Carol Brayne
- Institute of Public Health, School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Jonathan Mant
- Primary Care Unit, Department of Public Health and Primary Care, School of Clinical Medicine, University of Cambridge, Cambridge, UK
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Dregan A, Matcham F, Harber-Aschan L, Rayner L, Brailean A, Davis K, Hatch S, Pariante C, Armstrong D, Stewart R, Hotopf M. Common mental disorders within chronic inflammatory disorders: a primary care database prospective investigation. Ann Rheum Dis 2019; 78:688-695. [DOI: 10.1136/annrheumdis-2018-214676] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/24/2019] [Accepted: 02/17/2019] [Indexed: 01/30/2023]
Abstract
ObjectiveThere is inconsistent evidence about the association between inflammatory disorders and depression and anxiety onset in a primary care context. The study aimed to evaluate the risk of depression and anxiety within multisystem and organ-specific inflammatory disorders.MethodsThis is a prospective cohort study with primary care patients from the UK Clinical Practice Research Datalink diagnosed with an inflammatory disorder between 1 January 2001 and 31 December 2016. These patients were matched on age, gender, practice and index date with patients without an inflammatory disorder. The study exposures were seven chronic inflammatory disorders. Clinical diagnosis of depression and anxiety represented the outcome measures of interest.ResultsAmong 538 707 participants, the incidence of depression ranged from 14 per 1000 person-years (severe psoriasis) to 9 per 1000 person-years (systemic vasculitis), substantively higher compared with their comparison group (5–7 per 1000 person-years). HRs of multiple depression and anxiety events were 16% higher within inflammatory disorders (HR, 1.16, 95% CI 1.12 to 1.21, p<0.001) compared with the matched comparison group. The incidence of depression and anxiety was strongly associated with the age at inflammatory disorder onset. The overall HR estimate for depression was 1.90 (95% CI 1.66 to 2.17, p<0.001) within early-onset disorder (<40 years of age) and 0.93 (95% CI 0.90 to 1.09, p=0.80) within late-onset disorder (≥60 years of age).ConclusionsPrimary care patients with inflammatory disorders have elevated rates of depression and anxiety incidence, particularly those patients with early-onset inflammatory disorders. This finding may reflect the impact of the underlying disease on patients’ quality of life, although the precise mechanisms require further investigation.
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Santos E, Broussy S, Lesaine E, Saillour F, Rouanet F, Dehail P, Joseph PA, Aly F, Sibon I, Glize B. Post-stroke follow-up: Time to organize. Rev Neurol (Paris) 2019; 175:59-64. [DOI: 10.1016/j.neurol.2018.02.087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 11/10/2017] [Accepted: 02/28/2018] [Indexed: 10/28/2022]
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Cox JL, Parkash R, Abidi SS, Thabane L, Xie F, MacKillop J, Abidi SR, Ciaccia A, Choudhri SH, Abusharekh A, Nemis-White J. Optimizing primary care management of atrial fibrillation: The rationale and methods of the Integrated Management Program Advancing Community Treatment of Atrial Fibrillation (IMPACT-AF) study. Am Heart J 2018; 201:149-157. [PMID: 29807323 DOI: 10.1016/j.ahj.2018.04.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/02/2018] [Indexed: 11/29/2022]
Abstract
The Integrated Management Program Advancing Community Treatment of Atrial Fibrillation (IMPACT-AF) is an investigator designed, prospective, randomized, un-blinded, cluster design clinical trial, conducted in the primary care setting of Nova Scotia, Canada. Its aim is to evaluate whether an electronic Clinical Decision Support System (CDSS) designed to assist both practitioners and patients with evidence-based management strategies for Atrial Fibrillation (AF) can improve process of care and outcomes in a cost-efficient manner as compared to usual AF care. At least 200 primary care providers are being recruited and randomized at the level of the practice to control (usual care) or intervention (eligible to access to CDSS) cohorts. Over 1,000 patients of participating providers with confirmed AF will be managed per their provider's respective assignment. The targeted primary clinical outcome is a reduction in the composite of unplanned cardiovascular (CV) or major bleeding hospitalizations and AF-related emergency department visits. Secondary clinical outcomes, process of care, patient and provider satisfaction as well as economic costs at the system and patient levels are being examined. The trial is anticipated to report in 2018.
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Affiliation(s)
- Jafna L Cox
- Division of Cardiology, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada; Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada; Heart and Stroke Foundation of Nova Scotia Endowed Chair in Cardiovascular Outcomes Research.
| | - Ratika Parkash
- Division of Cardiology, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Syed Sr Abidi
- Faculty of Computer Science, Dalhousie University, Halifax, Nova Scotia, Canada; Department of Medicine, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Lehana Thabane
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada; Departments of Anesthesia/Pediatrics, McMaster University, Hamilton, Ontario, Canada; Biostatistics Unit, Centre for Evaluation of Medicine, McMaster University, Hamilton, Ontario, Canada; Population Health Research Institute (PHRI), Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada; System-Linked Research Unit (SLRU), McMaster University, Hamilton, Ontario, Canada
| | - Feng Xie
- Departments of Anesthesia/Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - James MacKillop
- Sydney Primary Care Medical Clinic, Sydney, Nova Scotia, Canada; Department of Family Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Samina R Abidi
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Antonio Ciaccia
- Medical Affairs - Cardiovascular Medicine, Bayer Inc, Mississauga, Ontario, Canada
| | - Shurjeel H Choudhri
- Medical & Scientific Affairs, Bayer Inc, Mississauga, Ontario, Canada; Canadian Clinical Trial Coordinating Centre (CCTCC); Medical Advisory Team (MAT), Innovative Medicines, Canada; Canadian Arrhythmia Network (CANet)
| | - A Abusharekh
- NICHE Research Group, Faculty of Computer Science, Dalhousie University, Halifax, Canada
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Dregan A, Ravindrarajah R, Charlton J, Ashworth M, Molokhia M. Long-term trends in antithrombotic drug prescriptions among adults aged 80 years and over from primary care: a temporal trends analysis using electronic health records. Ann Epidemiol 2018; 28:440-446. [PMID: 29609872 DOI: 10.1016/j.annepidem.2018.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 03/05/2018] [Accepted: 03/13/2018] [Indexed: 01/16/2023]
Abstract
PURPOSE This study aimed to estimate trends in antithrombotic prescriptions from 2001 to 2015 among people aged 80 years and over within clinical indications. METHODS A prospective cohort study with 215,559 participants registered with the UK Clinical Practice Research Datalink from 2001 to 2015 was included in the analyses. The prevalence and incidence of antiplatelet and anticoagulant drugs were estimated for each year and by five clinical indications. RESULTS The prevalence rate of antithrombotic prescriptions among patients aged over 80 years and diagnosed with atrial fibrillation increased from 53% in 2001 to 77% in 2015 (Ptrend <.001). Anticoagulant prescriptions rates also increased five-fold in older adults with atrial fibrillation from around 10% in 2001 to 46% in 2015 (Ptrend <.001). Clopidogrel-prescribing rates in patients aged over 80 years and with venous thrombosis increased from 0.4% in 2001 to 10% in 2015 (Ptrend <.001). Warfarin-prescribing rates in older patients with venous thrombosis increased from 13% in 2001 to 21% in 2015 (Ptrend <.001). CONCLUSIONS The use of antithrombotic drugs increased from 2001 to 2015 in people aged 80 years and over across multiple clinical indications. Assessing the benefits and harms of antithrombotic drugs across different clinical indications in older people is a priority.
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Affiliation(s)
- A Dregan
- King's College London, Population Health and Environmental Sciences, London, UK; NIHR, Biomedical Research Centre at Guy's and St Thomas NHS Foundation Trust, London, UK.
| | - R Ravindrarajah
- King's College London, Population Health and Environmental Sciences, London, UK
| | - J Charlton
- King's College London, Population Health and Environmental Sciences, London, UK
| | - M Ashworth
- King's College London, Population Health and Environmental Sciences, London, UK
| | - M Molokhia
- King's College London, Population Health and Environmental Sciences, London, UK
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Gentil ML, Cuggia M, Fiquet L, Hagenbourger C, Le Berre T, Banâtre A, Renault E, Bouzille G, Chapron A. Factors influencing the development of primary care data collection projects from electronic health records: a systematic review of the literature. BMC Med Inform Decis Mak 2017; 17:139. [PMID: 28946908 PMCID: PMC5613384 DOI: 10.1186/s12911-017-0538-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 09/14/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Primary care data gathered from Electronic Health Records are of the utmost interest considering the essential role of general practitioners (GPs) as coordinators of patient care. These data represent the synthesis of the patient history and also give a comprehensive picture of the population health status. Nevertheless, discrepancies between countries exist concerning routine data collection projects. Therefore, we wanted to identify elements that influence the development and durability of such projects. METHODS A systematic review was conducted using the PubMed database to identify worldwide current primary care data collection projects. The gray literature was also searched via official project websites and their contact person was emailed to obtain information on the project managers. Data were retrieved from the included studies using a standardized form, screening four aspects: projects features, technological infrastructure, GPs' roles, data collection network organization. RESULTS The literature search allowed identifying 36 routine data collection networks, mostly in English-speaking countries: CPRD and THIN in the United Kingdom, the Veterans Health Administration project in the United States, EMRALD and CPCSSN in Canada. These projects had in common the use of technical facilities that range from extraction tools to comprehensive computing platforms. Moreover, GPs initiated the extraction process and benefited from incentives for their participation. Finally, analysis of the literature data highlighted that governmental services, academic institutions, including departments of general practice, and software companies, are pivotal for the promotion and durability of primary care data collection projects. CONCLUSION Solid technical facilities and strong academic and governmental support are required for promoting and supporting long-term and wide-range primary care data collection projects.
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Affiliation(s)
- Marie-Line Gentil
- Department of General Practice, University of Rennes 1, F-35000, Rennes, France.
- CIC (Clinical investigation center) INSERM 1414, F-35000, Rennes, France.
| | - Marc Cuggia
- INSERM, U1099, F-35000, Rennes, France
- University of Rennes 1, LTSI (Laboratory for signal and image processing), F-35000, Rennes, France
- CHU Rennes, CIC Inserm 1414, F-35000, Rennes, France
- CHU Rennes, Centre de Données Cliniques, F-35000, Rennes, France
| | - Laure Fiquet
- Department of General Practice, University of Rennes 1, F-35000, Rennes, France
- CIC (Clinical investigation center) INSERM 1414, F-35000, Rennes, France
| | | | - Thomas Le Berre
- Department of General Practice, University of Rennes 1, F-35000, Rennes, France
| | - Agnès Banâtre
- Department of General Practice, University of Rennes 1, F-35000, Rennes, France
- CIC (Clinical investigation center) INSERM 1414, F-35000, Rennes, France
| | - Eric Renault
- University of Rennes 1, LTSI (Laboratory for signal and image processing), F-35000, Rennes, France
| | - Guillaume Bouzille
- INSERM, U1099, F-35000, Rennes, France
- University of Rennes 1, LTSI (Laboratory for signal and image processing), F-35000, Rennes, France
- CHU Rennes, CIC Inserm 1414, F-35000, Rennes, France
- CHU Rennes, Centre de Données Cliniques, F-35000, Rennes, France
| | - Anthony Chapron
- Department of General Practice, University of Rennes 1, F-35000, Rennes, France
- CIC (Clinical investigation center) INSERM 1414, F-35000, Rennes, France
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Esteban S, Rodríguez Tablado M, Ricci RI, Terrasa S, Kopitowski K. A rule-based electronic phenotyping algorithm for detecting clinically relevant cardiovascular disease cases. BMC Res Notes 2017; 10:281. [PMID: 28705240 PMCID: PMC5513369 DOI: 10.1186/s13104-017-2600-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 07/07/2017] [Indexed: 12/27/2022] Open
Abstract
Background The implementation of electronic medical records (EMR) is becoming increasingly common. Error and data loss reduction, patient-care efficiency increase, decision-making assistance and facilitation of event surveillance, are some of the many processes that EMRs help improve. In addition, they show a lot of promise in terms of data collection to facilitate observational epidemiological studies and their use for this purpose has increased significantly over the recent years. Even though the quantity and availability of the data are clearly improved thanks to EMRs, still, the problem of the quality of the data remains. This is especially important when attempting to determine if an event has actually occurred or not. We sought to assess the sensitivity, specificity, and agreement level of a codes-based algorithm for the detection of clinically relevant cardiovascular (CaVD) and cerebrovascular (CeVD) disease cases, using data from EMRs. Methods Three family physicians from the research group selected clinically relevant CaVD and CeVD terms from the international classification of primary care, Second Edition (ICPC-2), the ICD 10 version 2015 and SNOMED-CT 2015 Edition. These terms included both signs, symptoms, diagnoses and procedures associated with CaVD and CeVD. Terms not related to symptoms, signs, diagnoses or procedures of CaVD or CeVD and also those describing incidental findings without clinical relevance were excluded. The algorithm yielded a positive result if the patient had at least one of the selected terms in their medical records, as long as it was not recorded as an error. Else, if no terms were found, the patient was classified as negative. This algorithm was applied to a randomly selected sample of the active patients within the hospital’s HMO by 1/1/2005 that were 40–79 years old, had at least one year of seniority in the HMO and at least one clinical encounter. Thus, patients were classified into four groups: (1) Negative patients (2) Patients with CaVD but without CeVD; (3) Patients with CeVD but without disease CaVD; (4) Patients with both diseases. To facilitate the validation process, a stratified sample was taken so that each of the groups represented approximately 25% of the sample. Manual chart review was used as the gold standard for assessing the algorithm’s performance. One-third of the patients were assigned randomly to each reviewer (Cohen’s kappa 0.91). Both coded and un-coded (free text) sections of the EMR were reviewed. This was done from the first present clinical note in the patients chart to the last one registered prior to 1/1/2005. Results The performance of the algorithm was compared against manual chart review. It yielded high sensitivity (0.99, 95% CI 0.938–0.9971) and acceptable specificity (0.86, 95% CI 0.818–0.895) for detecting cases of CaVD and CeVD combined. A qualitative analysis of the false positives and false negatives was performed. Conclusions We developed a simple algorithm, using only standardized and non-standardized coded terms within an EMR that can properly detect clinically relevant events and symptoms of CaVD and CeVD. We believe that combining it with an analysis of the free text using an NLP approach would yield even better results. Electronic supplementary material The online version of this article (doi:10.1186/s13104-017-2600-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Santiago Esteban
- Family and Community Medicine Division, Hospital Italiano de Buenos Aires, Tte. J. D. Peron, 4272, Buenos Aires, Argentina. .,Research Department, Instituto Universitario del Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - Manuel Rodríguez Tablado
- Family and Community Medicine Division, Hospital Italiano de Buenos Aires, Tte. J. D. Peron, 4272, Buenos Aires, Argentina
| | - Ricardo Ignacio Ricci
- Family and Community Medicine Division, Hospital Italiano de Buenos Aires, Tte. J. D. Peron, 4272, Buenos Aires, Argentina
| | - Sergio Terrasa
- Family and Community Medicine Division, Hospital Italiano de Buenos Aires, Tte. J. D. Peron, 4272, Buenos Aires, Argentina.,Research Department, Instituto Universitario del Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Karin Kopitowski
- Family and Community Medicine Division, Hospital Italiano de Buenos Aires, Tte. J. D. Peron, 4272, Buenos Aires, Argentina.,Research Department, Instituto Universitario del Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Dregan A, Chowienczyk P, Gulliford MC. Are Inflammation and Related Therapy Associated with All-Cause Dementia in a Primary Care Population? J Alzheimers Dis 2016; 46:1039-47. [PMID: 26402631 DOI: 10.3233/jad-150171] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND There is limited primary-care based evidence for an association between chronic inflammation and related therapy with all-cause dementia. OBJECTIVE To estimate the association between several chronic inflammatory disorders and related drug therapy and all-cause dementia. METHODS The study population included a cohort of patients diagnosed with inflammatory conditions and matching controls (ratio 1:2) from the Clinical Practice Research Datalink, a database or primary care records in the UK. Inflammation patients and controls were matched on age, gender, and family practice. The study outcome measure was all-cause dementia. Chronic inflammation diagnosis and anti-inflammatory drugs represented the exposure variables of interest. Competing risks analyses were used to estimate the risk of dementia associated with exposure variables. RESULTS There were 1,378 (1% ) and 2,805 (1% ) dementia events recorded for chronic inflammation patients and their matched controls, respectively. Systemic vasculitis was associated with increased hazard ratios of dementia (1.75, 95% confidence interval (CI) 1.35-2.27, p < 0.001). The analyses revealed increased risk of dementia for systemic vasculitis (1.64, 95% CI 1.24-2.18), Crohn's diseases (2.08, 95% CI 1.16-3.74), bullous skin diseases (1.55, 95% CI 1.11-2.18), and inflammatory arthritis (1.33, 95% CI1.06-1.63) among treated patients. Combined glucocorticoids and NSAID therapy suggested reduced risk of dementia across most conditions, particularly systemic autoimmune disorders (0.41, 95% CI 0.18-0.95). CONCLUSION The association between chronic inflammation and dementia varied across inflammatory disorders, being stronger for systemic vasculitis. There was evidence that combined therapy was associated with lower risk of dementia across most disorders. These data highlight potential avenues for future mechanistic and intervention investigations.
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Affiliation(s)
- Alex Dregan
- King's College London, Department of Primary Care and Public Health Sciences, London, UK and NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Phil Chowienczyk
- King's College London, British Heart Foundation Centre, London, UK
| | - Martin C Gulliford
- King's College London, Department of Primary Care and Public Health Sciences, London, UK and NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, London, UK
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Williams T, van Staa T, Puri S, Eaton S. Recent advances in the utility and use of the General Practice Research Database as an example of a UK Primary Care Data resource. Ther Adv Drug Saf 2014; 3:89-99. [PMID: 25083228 DOI: 10.1177/2042098611435911] [Citation(s) in RCA: 242] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Since its inception in the mid-1980s, the General Practice Research Database (GPRD) has undergone many changes but remains the largest validated and most utilised primary care database in the UK. Its use in pharmacoepidemiology stretches back many years with now over 800 original research papers. Administered by the Medicines and Healthcare products Regulatory Agency since 2001, the last 5 years have seen a rebuild of the database processing system enhancing access to the data, and a concomitant push towards broadening the applications of the database. New methodologies including real-world harm-benefit assessment, pharmacogenetic studies and pragmatic randomised controlled trials within the database are being implemented. A substantive and unique linkage program (using a trusted third party) has enabled access to secondary care data and disease-specific registry data as well as socio-economic data and death registration data. The utility of anonymised free text accessed in a safe and appropriate manner is being explored using simple and more complex techniques such as natural language processing.
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Choquet R, Maaroufi M, de Carrara A, Messiaen C, Luigi E, Landais P. A methodology for a minimum data set for rare diseases to support national centers of excellence for healthcare and research. J Am Med Inform Assoc 2014; 22:76-85. [PMID: 25038198 DOI: 10.1136/amiajnl-2014-002794] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Although rare disease patients make up approximately 6-8% of all patients in Europe, it is often difficult to find the necessary expertise for diagnosis and care and the patient numbers needed for rare disease research. The second French National Plan for Rare Diseases highlighted the necessity for better care coordination and epidemiology for rare diseases. A clinical data standard for normalization and exchange of rare disease patient data was proposed. The original methodology used to build the French national minimum data set (F-MDS-RD) common to the 131 expert rare disease centers is presented. METHODS To encourage consensus at a national level for homogeneous data collection at the point of care for rare disease patients, we first identified four national expert groups. We reviewed the scientific literature for rare disease common data elements (CDEs) in order to build the first version of the F-MDS-RD. The French rare disease expert centers validated the data elements (DEs). The resulting F-MDS-RD was reviewed and approved by the National Plan Strategic Committee. It was then represented in an HL7 electronic format to maximize interoperability with electronic health records. RESULTS The F-MDS-RD is composed of 58 DEs in six categories: patient, family history, encounter, condition, medication, and questionnaire. It is HL7 compatible and can use various ontologies for diagnosis or sign encoding. The F-MDS-RD was aligned with other CDE initiatives for rare diseases, thus facilitating potential interconnections between rare disease registries. CONCLUSIONS The French F-MDS-RD was defined through national consensus. It can foster better care coordination and facilitate determining rare disease patients' eligibility for research studies, trials, or cohorts. Since other countries will need to develop their own standards for rare disease data collection, they might benefit from the methods presented here.
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Affiliation(s)
- Rémy Choquet
- BNDMR, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades, Paris, France INSERM, U1142, LIMICS, Paris, France
| | - Meriem Maaroufi
- BNDMR, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades, Paris, France INSERM, U1142, LIMICS, Paris, France
| | - Albane de Carrara
- BNDMR, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades, Paris, France
| | - Claude Messiaen
- BNDMR, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades, Paris, France
| | - Emmanuel Luigi
- Direction Générale de l'Offre de Soins, Ministère de la Santé et de la Solidarité, Paris, France
| | - Paul Landais
- BNDMR, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades, Paris, France Faculty of Medicine, EA2415, Clinical Research University Institute, Montpellier 1 University and BESPIM, Nîmes University Hospital, France
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Dregan A, Charlton J, Chowienczyk P, Gulliford MC. Chronic inflammatory disorders and risk of type 2 diabetes mellitus, coronary heart disease, and stroke: a population-based cohort study. Circulation 2014; 130:837-44. [PMID: 24970784 DOI: 10.1161/circulationaha.114.009990] [Citation(s) in RCA: 193] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND This study sought to evaluate whether risks of diabetes mellitus and cardiovascular disease are elevated across a range of organ-specific and multisystem chronic inflammatory disorders. METHODS AND RESULTS A matched cohort study was implemented in the UK Clinical Practice Research Datalink including participants with severe psoriasis (5648), mild psoriasis (85 232), bullous skin diseases (4284), ulcerative colitis (12 203), Crohn's disease (7628), inflammatory arthritis (27 358), systemic autoimmune disorders (7472), and systemic vasculitis (6283) and in 373 851 matched controls. The main outcome measures were new diagnoses of type 2 diabetes mellitus, stroke, or coronary heart disease. The outcomes were evaluated for each condition in a multiple outcomes model, with adjustment for conventional cardiovascular risk factors. Estimates for different inflammatory conditions were pooled in a random-effects meta-analysis. There were 4695 new diagnoses of type 2 diabetes mellitus, 3266 of coronary heart disease, and 1715 of stroke. The hazard ratio for pooled multiple failure estimate was 1.20 (95% confidence interval [CI], 1.15-1.26). The highest relative hazards were observed in systemic autoimmune disorders (1.32; 95% CI, 1.16-1.50) and systemic vasculitis (1.29; 95% CI, 1.16-1.44). Hazards were increased in organ-specific disorders, including severe psoriasis (1.29; 95% CI, 1.12-1.47) and ulcerative colitis (1.26; 95% CI, 1.14-1.40). Participants in the highest tertile of C-reactive protein had greater risk of multiple outcomes (1.52; 95% CI, 1.37-1.68). CONCLUSIONS The risk of cardiovascular diseases and type 2 diabetes mellitus is increased across a range of organ-specific and multisystem chronic inflammatory disorders with evidence that risk is associated with severity of inflammation. Clinical management of patients with chronic inflammatory disorders should seek to reduce cardiovascular risk.
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Affiliation(s)
- Alex Dregan
- From the Department of Primary Care and Public Health Sciences (A.D., M.C.G., J.C.), National Institute for Health Research Biomedical Research Centre at Guy's and St Thomas' National Health Service Foundation Trust (A.D., M.C.G.), and British Heart Foundation Centre (P.C.), King's College London, London, United Kingdom.
| | - Judith Charlton
- From the Department of Primary Care and Public Health Sciences (A.D., M.C.G., J.C.), National Institute for Health Research Biomedical Research Centre at Guy's and St Thomas' National Health Service Foundation Trust (A.D., M.C.G.), and British Heart Foundation Centre (P.C.), King's College London, London, United Kingdom
| | - Phil Chowienczyk
- From the Department of Primary Care and Public Health Sciences (A.D., M.C.G., J.C.), National Institute for Health Research Biomedical Research Centre at Guy's and St Thomas' National Health Service Foundation Trust (A.D., M.C.G.), and British Heart Foundation Centre (P.C.), King's College London, London, United Kingdom
| | - Martin C Gulliford
- From the Department of Primary Care and Public Health Sciences (A.D., M.C.G., J.C.), National Institute for Health Research Biomedical Research Centre at Guy's and St Thomas' National Health Service Foundation Trust (A.D., M.C.G.), and British Heart Foundation Centre (P.C.), King's College London, London, United Kingdom
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Gulliford MC, van Staa TP, McDermott L, McCann G, Charlton J, Dregan A. Cluster randomized trials utilizing primary care electronic health records: methodological issues in design, conduct, and analysis (eCRT Study). Trials 2014; 15:220. [PMID: 24919485 PMCID: PMC4062282 DOI: 10.1186/1745-6215-15-220] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 05/22/2014] [Indexed: 11/10/2022] Open
Abstract
Background There is growing interest in conducting clinical and cluster randomized trials through electronic health records. This paper reports on the methodological issues identified during the implementation of two cluster randomized trials using the electronic health records of the Clinical Practice Research Datalink (CPRD). Methods Two trials were completed in primary care: one aimed to reduce inappropriate antibiotic prescribing for acute respiratory infection; the other aimed to increase physician adherence with secondary prevention interventions after first stroke. The paper draws on documentary records and trial datasets to report on the methodological experience with respect to research ethics and research governance approval, general practice recruitment and allocation, sample size calculation and power, intervention implementation, and trial analysis. Results We obtained research governance approvals from more than 150 primary care organizations in England, Wales, and Scotland. There were 104 CPRD general practices recruited to the antibiotic trial and 106 to the stroke trial, with the target number of practices being recruited within six months. Interventions were installed into practice information systems remotely over the internet. The mean number of participants per practice was 5,588 in the antibiotic trial and 110 in the stroke trial, with the coefficient of variation of practice sizes being 0.53 and 0.56 respectively. Outcome measures showed substantial correlations between the 12 months before, and after intervention, with coefficients ranging from 0.42 for diastolic blood pressure to 0.91 for proportion of consultations with antibiotics prescribed, defining practice and participant eligibility for analysis requires careful consideration. Conclusions Cluster randomized trials may be performed efficiently in large samples from UK general practices using the electronic health records of a primary care database. The geographical dispersal of trial sites presents a difficulty for research governance approval and intervention implementation. Pretrial data analyses should inform trial design and analysis plans. Trial registration Current Controlled Trials ISRCTN 47558792 and ISRCTN 35701810 (both registered on 17 March 2010).
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Affiliation(s)
- Martin C Gulliford
- Department of Primary Care and Public Health Sciences, King's College London, Capital House, 42 Weston St, London SE1 3QD, UK.
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Dregan A, van Staa TP, McDermott L, McCann G, Ashworth M, Charlton J, Wolfe CDA, Rudd A, Yardley L, Gulliford MC, Trial Steering Committee. Point-of-care cluster randomized trial in stroke secondary prevention using electronic health records. Stroke 2014; 45:2066-71. [PMID: 24903985 DOI: 10.1161/strokeaha.114.005713] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE The aim of this study was to evaluate whether the remote introduction of electronic decision support tools into family practices improves risk factor control after first stroke. This study also aimed to develop methods to implement cluster randomized trials in stroke using electronic health records. METHODS Family practices were recruited from the UK Clinical Practice Research Datalink and allocated to intervention and control trial arms by minimization. Remotely installed, electronic decision support tools promoted intensified secondary prevention for 12 months with last measure of systolic blood pressure as the primary outcome. Outcome data from electronic health records were analyzed using marginal models. RESULTS There were 106 Clinical Practice Research Datalink family practices allocated (intervention, 53; control, 53), with 11 391 (control, 5516; intervention, 5875) participants with acute stroke ever diagnosed. Participants at trial practices had similar characteristics as 47,887 patients with stroke at nontrial practices. During the intervention period, blood pressure values were recorded in the electronic health records for 90% and cholesterol values for 84% of participants. After intervention, the latest mean systolic blood pressure was 131.7 (SD, 16.8) mm Hg in the control trial arm and 131.4 (16.7) mm Hg in the intervention trial arm, and adjusted mean difference was -0.56 mm Hg (95% confidence interval, -1.38 to 0.26; P=0.183). The financial cost of the trial was approximately US $22 per participant, or US $2400 per family practice allocated. CONCLUSIONS Large pragmatic intervention studies may be implemented at low cost by using electronic health records. The intervention used in this trial was not found to be effective, and further research is needed to develop more effective intervention strategies. CLINICAL TRIAL REGISTRATION URL http://www.controlled-trials.com. Current Controlled Trials identifier: ISRCTN35701810.
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Affiliation(s)
- Alex Dregan
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Tjeerd P van Staa
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Lisa McDermott
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Gerard McCann
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Mark Ashworth
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Judith Charlton
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Charles D A Wolfe
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Anthony Rudd
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Lucy Yardley
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.)
| | - Martin C Gulliford
- From the Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom (A.D., L.M., M.A., J.C., C.D.A.W., A.R., M.C.G.); NIHR Biomedical Research Centre at Guy's and St Thomas' Hospital London, London, United Kingdom (A.D., C.D.A.W., A.R., M.C.G.); Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency, London, United Kingdom (T.P.v.S., G.M.); London School of Hygiene & Tropical Medicine, London, United Kingdom (T.P.v.S.); and Division of Community Clinical Sciences, University of Southampton, Southampton, United Kingdom (L.M., L.Y.).
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Dregan A, Charlton J, Wolfe CDA, Gulliford MC, Markus HS. Is sodium valproate, an HDAC inhibitor, associated with reduced risk of stroke and myocardial infarction? A nested case-control study. Pharmacoepidemiol Drug Saf 2014; 23:759-67. [PMID: 24890032 PMCID: PMC4312949 DOI: 10.1002/pds.3651] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 04/08/2014] [Accepted: 04/28/2014] [Indexed: 01/18/2023]
Abstract
Background This study aimed to evaluate whether treatment with sodium valproate (SV) was associated with reduced risk of stroke or myocardial infarction (MI). Methods Electronic health records data were extracted from Clinical Practice Research Database for participants ever diagnosed with epilepsy and prescribed antiepileptic drugs. A nested case–control study was implemented with cases diagnosed with incident non-haemorrhagic stroke and controls matched for sex, year of birth, and study start date (ratio of 1:6). A second nested study was implemented with MI as outcome. The main exposure variable was SV therapy assessed as: ever prescribed, pre-stroke year treatment, number of SV prescriptions, and cumulative time on SV drug therapy. Odds ratios were estimated using conditional logistic regression. Results Data were analysed for 2002 stroke cases and 13 098 controls. MI analyses included 1153 cases and 7109 controls. Pre-year stroke SV treatment (28%) was associated with increased stroke risk (odds ratio 1.22, 95% confidence interval (CI): 1.09 to 1.38, p < 0.001). No association was observed between ever being prescribed SV with ischemic stroke (OR = 1.01, 95% CI: 0.91 to 1.12, p = 0.875). A significant association was observed between ever being prescribed SV with MI (OR = 0.78, 95% CI: 0.67 to 0.90, p < 0.001). Patients in the highest quarter of SV treatment duration had lower odds of ischemic stroke (OR = 0.57, 95% CI: 0.44 to 0.72, p < 0.001) and MI (OR = 0.29, 95% CI: 0.20 to 0.44, p < 0.001). Conclusion Sodium valproate exposure was associated with the risk of MI, but not ischemic stroke. However, longer exposure to SV was associated with lower odds of stroke, but this might be explained by survivor bias.
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Affiliation(s)
- Alex Dregan
- Department of Primary Care and Public Health Sciences, King's College London, London, UK; NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
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Wolfe CDA, Rudd AG, McKevitt C. Modelling, evaluating and implementing cost-effective services to reduce the impact of stroke. PROGRAMME GRANTS FOR APPLIED RESEARCH 2014. [DOI: 10.3310/pgfar02020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BackgroundStroke is a leading cause of death and disability but there is little information on the longer-term needs of patients and those of different ethnic groups.ObjectivesTo estimate risk of stroke, longer-term needs and outcomes, risk of recurrence, trends and predictors of effective care, to model cost-effective configurations of care, to understand stakeholders’ perspectives of services and to develop proposals to underpin policy.DesignPopulation-based stroke register, univariate and multivariate analyses, Markov and discrete event simulation, and qualitative methods for stakeholder perspectives of care and outcome.SettingSouth London, UK, with modelling for estimates of cost-effectiveness.ParticipantsInner-city population of 271,817 with first stroke in lifetime between 1995 and 2012.Outcome measuresStroke incidence rates and trends, recurrence, survival, activities of daily living, anxiety, depression, quality of life, appropriateness and cost-effectiveness of care, and qualitative narratives of perspectives.Data sourcesSouth London Stroke Register (SLSR), qualitative data, group discussions.ResultsStroke incidence has decreased since 1995, particularly in the white population, but with a higher stroke risk in black groups. There are variations in risk factors and types of stroke between ethnic groups and a large number of strokes occurred in people with untreated risk factors with no improvement in detection observed over time. A total of 30% of survivors have a poor range of outcomes up to 10 years after stroke with differences in outcomes by sociodemographic group. Depression affects over half of all stroke patients and the prevalence of cognitive impairment remains 22%. Survival has improved significantly, particularly in the older black groups, and the cumulative risk of recurrence at 10 years is 24.5%. The proportion of patients receiving effective acute stroke care has significantly improved, yet inequalities of provision remain. Using register data, the National Audit Office (NAO) compared the levels of stroke care in the UK in 2010 with previous provision levels and demonstrated that improvements have been cost-effective. The treatment of, and productivity loss arising from, stroke results in total societal costs of £8.9B a year and 5% of UK NHS costs. Stroke unit care followed by early supported discharge is a cost-effective strategy, with the main gain being years of life saved. Half of stroke survivors report unmet long-term needs. Needs change over time, but may not be stroke specific. Analysis of patient journeys suggests that provision of care is also influenced by structural, social and personal characteristics.Conclusions/recommendationsThe SLSR has been a platform for a range of health services research activities of international relevance. The programme has produced data to inform policy and practice with estimates of need for stroke prevention and care services, identification of persistent sociodemographic inequalities in risk and care despite a reduction in stroke risk, quantification of the effectiveness and cost-effectiveness of care and development of models to simulate configurations of care. Stroke is a long-term condition with significant social impact and the data on need and economic modelling have been utilised by the Department of Health, the NAO and Healthcare for London to assess need and model cost-effective options for stroke care. Novel approaches are now required to ensure that such information is used effectively to improve population and patient outcomes.FundingThe National Institute for Health Research Programme Grants for Applied Research programme and the Department of Health via the National Institute for Health Research Biomedical Research Centre award to Guy’s and St Thomas’ NHS Foundation Trust in partnership with King’s College London.
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Affiliation(s)
- Charles DA Wolfe
- Department of Primary Care and Public Health Sciences, Division of Health and Social Care Research, School of Medicine, King’s College London, London, UK
- National Institute for Health Research Biomedical Research Centre, Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
| | - Anthony G Rudd
- Department of Primary Care and Public Health Sciences, Division of Health and Social Care Research, School of Medicine, King’s College London, London, UK
- Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Christopher McKevitt
- Department of Primary Care and Public Health Sciences, Division of Health and Social Care Research, School of Medicine, King’s College London, London, UK
- National Institute for Health Research Biomedical Research Centre, Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
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Lager KE, Mistri AK, Khunti K, Haunton VJ, Sett AK, Wilson AD. Interventions for improving modifiable risk factor control in the secondary prevention of stroke. Cochrane Database Syst Rev 2014:CD009103. [PMID: 24789063 DOI: 10.1002/14651858.cd009103.pub2] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND People with stroke or transient ischaemic attack (TIA) are at increased risk of future stroke and other cardiovascular events. Evidence-based strategies for secondary stroke prevention have been established. However, the implementation of prevention strategies could be improved. OBJECTIVES To assess the effects of stroke service interventions for implementing secondary stroke prevention strategies on modifiable risk factor control, including patient adherence to prescribed medications, and the occurrence of secondary cardiovascular events. SEARCH METHODS We searched the Cochrane Stroke Group Trials Register (April 2013), the Cochrane Effective Practice and Organisation of Care Group Trials Register (April 2013), CENTRAL (The Cochrane Library 2013, issue 3), MEDLINE (1950 to April 2013), EMBASE (1981 to April 2013) and 10 additional databases. We located further studies by searching reference lists of articles and contacting authors of included studies. SELECTION CRITERIA We included randomised controlled trials (RCTs) that evaluated the effects of organisational or educational and behavioural interventions (compared with usual care) on modifiable risk factor control for secondary stroke prevention. DATA COLLECTION AND ANALYSIS Two review authors selected studies for inclusion and independently extracted data. One review author assessed the risk of bias for the included studies. We sought missing data from trialists. MAIN RESULTS This review included 26 studies involving 8021 participants. Overall the studies were of reasonable quality, but one study was considered at high risk of bias. Fifteen studies evaluated predominantly organisational interventions and 11 studies evaluated educational and behavioural interventions for patients. Results were pooled where appropriate, although some clinical and methodological heterogeneity was present. The estimated effects of organisational interventions were compatible with improvements and no differences in the modifiable risk factors mean systolic blood pressure (mean difference (MD) -2.57 mmHg; 95% confidence interval (CI) -5.46 to 0.31), mean diastolic blood pressure (MD -0.90 mmHg; 95% CI -2.49 to 0.68), blood pressure target achievement (OR 1.24; 95% CI 0.94 to 1.64) and mean body mass index (MD -0.68 kg/m(2); 95% CI -1.46 to 0.11). There were no significant effects of organisational interventions on lipid profile, HbA1c, medication adherence or recurrent cardiovascular events. Educational and behavioural interventions were not generally associated with clear differences in any of the review outcomes, with only two exceptions. AUTHORS' CONCLUSIONS Pooled results indicated that educational interventions were not associated with clear differences in any of the review outcomes. The estimated effects of organisational interventions were compatible with improvements and no differences in several modifiable risk factors. We identified a large number of ongoing studies, suggesting that research in this area is increasing. The use of standardised outcome measures would facilitate the synthesis of future research findings.
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Affiliation(s)
- Kate E Lager
- Department of Health Sciences, University of Leicester, 22-28 Princess Road West, Leicester, UK, LE1 6TP
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Gagne JJ, Rassen JA, Choudhry NK, Bohn RL, Patrick AR, Sridhar G, Daniel GW, Liu J, Schneeweiss S. Near-Real-Time Monitoring of New Drugs: An Application Comparing Prasugrel Versus Clopidogrel. Drug Saf 2014; 37:151-61. [DOI: 10.1007/s40264-014-0136-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lin J, Jiao T, Biskupiak JE, McAdam-Marx C. Application of electronic medical record data for health outcomes research: a review of recent literature. Expert Rev Pharmacoecon Outcomes Res 2014; 13:191-200. [DOI: 10.1586/erp.13.7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Holt TA, Fitzmaurice DA, Marshall T, Fay M, Qureshi N, Dalton ARH, Hobbs FDR, Lasserson DS, Kearley K, Hislop J, Jin J. Automated Risk Assessment for Stroke in Atrial Fibrillation (AURAS-AF)--an automated software system to promote anticoagulation and reduce stroke risk: study protocol for a cluster randomised controlled trial. Trials 2013; 14:385. [PMID: 24220602 PMCID: PMC4225760 DOI: 10.1186/1745-6215-14-385] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 10/28/2013] [Indexed: 11/10/2022] Open
Abstract
Background Patients with atrial fibrillation (AF) are at significantly increased risk of stroke. Oral anticoagulants (OACs) substantially reduce this risk, with gains seen across the spectrum of baseline risk. Despite the benefit to patients, OAC prescribing remains suboptimal in the United Kingdom (UK). We will investigate whether an automated software system, operating within primary care electronic medical records, can improve the management of AF by identifying patients eligible for OAC therapy and increasing uptake of this treatment. Methods/Design We will conduct a cluster randomised controlled trial, involving general practices using the Egton Medical Information Systems (EMIS) Web clinical system. We will randomise practices to use an electronic software tool or to continue with usual care. The tool will a) produce (and continually refresh) a list of patients with AF who are eligible for OAC therapy - practices will invite these patients to discuss therapy at the start of the trial - and b) generate electronic screen reminders in the medical records of those eligible, appearing throughout the trial. The software will run for 6 months in 23 intervention practices. A total of 23 control practices will manage their AF register in line with the usual care offered. The primary outcome is change in proportion of eligible patients with AF who have been prescribed OAC therapy after six months. Secondary outcomes are incidence of stroke, transient ischaemic attack, other major thromboembolism, major haemorrhage and reports of inappropriate OAC prescribing in the data collection sample - those deemed eligible for OACs. We will conduct a process evaluation in parallel with the randomised trial. We will use qualitative methods to examine patient and practitioner views of the intervention and its impact on primary care practice, including its time implications. Discussion AURAS-AF will investigate whether a simple intervention, using electronic primary care records, can improve OAC uptake in a high risk group for stroke. Given previous concerns about safety, especially surrounding inappropriate prescribing, we will also examine whether electronic reminders safely impact care in this clinical area. Trial registration http://ISRCTN 55722437
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Affiliation(s)
- Tim A Holt
- Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, England.
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Wallace P, Delaney B, Sullivan F. Unlocking the research potential of the GP electronic care record. Br J Gen Pract 2013; 63:284-5. [PMID: 23735377 PMCID: PMC3662422 DOI: 10.3399/bjgp13x668023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Dregan A, van Staa T, McDermott L, McCann G, Ashworth M, Charlton J, Wolfe C, Rudd A, Yardley L, Gulliford M. Cluster randomized trial in the general practice research database: 2. Secondary prevention after first stroke (eCRT study): study protocol for a randomized controlled trial. Trials 2012; 13:181. [PMID: 23034059 PMCID: PMC3570277 DOI: 10.1186/1745-6215-13-181] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 09/26/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of this research is to develop and evaluate methods for conducting pragmatic cluster randomized trials in a primary care electronic database. The proposal describes one application, in a less frequent chronic condition of public health importance, secondary prevention of stroke. A related protocol in antibiotic prescribing was reported previously. METHODS/DESIGN The study aims to implement a cluster randomized trial (CRT) using the electronic patient records of the General Practice Research Database (GPRD) as a sampling frame and data source. The specific objective of the trial is to evaluate the effectiveness of a computer-delivered intervention at enhancing the delivery of stroke secondary prevention in primary care. GPRD family practices will be allocated to the intervention or usual care. The intervention promotes the use of electronic prompts to support adherence with the recommendations of the UK Intercollegiate Stroke Working Party and NICE guidelines for the secondary prevention of stroke in primary care. Primary outcome measure will be the difference in systolic blood pressure between intervention and control trial arms at 12-month follow-up. Secondary outcomes will be differences in serum cholesterol, prescribing of antihypertensive drugs, statins, and antiplatelet therapy. The intervention will continue for 12 months. Information on the utilization of the decision-support tools will also be analyzed. DISCUSSION The CRT will investigate the effectiveness of using a computer-delivered intervention to reduce the risk of stroke recurrence following a first stroke event. The study will provide methodological guidance on the implementation of CRTs in electronic databases in primary care. TRIAL REGISTRATION Current Controlled Trials ISRCTN35701810.
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Affiliation(s)
- Alex Dregan
- Department of Primary Care and Public Health Sciences, King's College, London, UK.
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