Alex Walker - Publications

Affiliations: 
2015-2020 Aerospace Engineering & Engineering Applications University of Cincinnati, Cincinnati, OH 

0/115 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
Low-probability matches (unlikely to be authored by this person)
2024 Brown AD, Fisher L, Curtis HJ, Wiedemann M, Hulme WJ, Speed V, Hopcroft LEM, Cunningham C, Costello RE, Galloway JB, Russell MD, Bechman K, Kurt Z, Croker R, Wood C, ... Walker AJ, et al. OpenSAFELY: The impact of COVID-19 on azathioprine, leflunomide and methotrexate monitoring, and factors associated with change in monitoring rate. British Journal of Clinical Pharmacology. PMID 38589944 DOI: 10.1111/bcp.16062  0.01
2024 Wood C, Speed V, Fisher L, Curtis HJ, Schaffer AL, Walker AJ, Croker R, Brown AD, Cunningham C, Hulme WJ, Andrews CD, Butler-Cole BFC, Evans D, Inglesby P, Dillingham I, et al. The impact of COVID-19 on medication reviews in English primary care. An OpenSAFELY-TPP analysis of 20 million adult electronic health records. British Journal of Clinical Pharmacology. PMID 38531661 DOI: 10.1111/bcp.16030  0.01
2024 Cezard GI, Denholm RE, Knight R, Wei Y, Teece L, Toms R, Forbes HJ, Walker AJ, Fisher L, Massey J, Hopcroft LEM, Horne EMF, Taylor K, Palmer T, Arab MA, et al. Impact of vaccination on the association of COVID-19 with cardiovascular diseases: An OpenSAFELY cohort study. Nature Communications. 15: 2173. PMID 38467603 DOI: 10.1038/s41467-024-46497-0  0.01
2024 Lemanska A, Andrews C, Fisher L, Bacon S, Mehrkar A, Inglesby P, Davy S, Goldacre B, MacKenna B, Walker AJ. During the COVID-19 pandemic 20 000 prostate cancer diagnoses were missed in England. Bju International. PMID 38414224 DOI: 10.1111/bju.16305  0.01
2024 Borkar CD, Stelly CE, Fu X, Dorofeikova M, Le QE, Vutukuri R, Vo C, Walker A, Basavanhalli S, Duong A, Bean E, Resendez A, Parker JG, Tasker JG, Fadok JP. Top-down control of flight by a non-canonical cortico-amygdala pathway. Nature. PMID 38233522 DOI: 10.1038/s41586-023-06912-w  0.01
2024 Walker A, Stewart SD. High concordance of blood glucose measurement in cats between a beta prototype glucometer device and a reference laboratory standard in a clinical setting. Journal of the American Veterinary Medical Association. 1-5. PMID 38190800 DOI: 10.2460/javma.23.08.0457  0.01
2023 Breitinger S, Gardea-Resendez M, Langholm C, Xiong A, Laivell J, Stoppel C, Harper L, Volety R, Walker A, D'Mello R, Byun AJS, Zandi P, Goes FS, Frye M, Torous J. Digital Phenotyping for Mood Disorders: Methodology-Oriented Pilot Feasibility Study. Journal of Medical Internet Research. 25: e47006. PMID 38157233 DOI: 10.2196/47006  0.01
2023 Langholm C, Breitinger S, Gray L, Goes F, Walker A, Xiong A, Stopel C, Zandi P, Frye MA, Torous J. Classifying and clustering mood disorder patients using smartphone data from a feasibility study. Npj Digital Medicine. 6: 238. PMID 38129571 DOI: 10.1038/s41746-023-00977-7  0.01
2023 Walker A, Zirikly A, Stockbridge M, Wilcox HC. A Linguistic Analysis of Instagram Captions Between Adolescent Suicide Decedents and Living Controls. Crisis. PMID 37818627 DOI: 10.1027/0227-5910/a000928  0.01
2023 Macdonald O, Green A, Walker A, Curtis H, Croker R, Brown A, Butler-Cole B, Andrews C, Massey J, Inglesby P, Morton C, Fisher L, Morley J, Mehrkar A, Bacon S, et al. Impact of the COVID-19 pandemic on antipsychotic prescribing in individuals with autism, dementia, learning disability, serious mental illness or living in a care home: a federated analysis of 59 million patients' primary care records in situ using OpenSAFELY. Bmj Mental Health. 26. PMID 37714668 DOI: 10.1136/bmjment-2023-300775  0.01
2023 Lemanska A, Andrews C, Fisher L, Bacon S, Frampton AE, Mehrkar A, Inglesby P, Davy S, Roberts K, Patalay P, Goldacre B, MacKenna B, Walker AJ. Healthcare in England was affected by the COVID-19 pandemic across the pancreatic cancer pathway: A cohort study using OpenSAFELY-TPP. Elife. 12. PMID 37561116 DOI: 10.7554/eLife.85332  0.01
2023 Fisher L, Curtis HJ, Croker R, Wiedemann M, Speed V, Wood C, Brown A, Hopcroft LEM, Higgins R, Massey J, Inglesby P, Morton CE, Walker AJ, Morley J, Mehrkar A, et al. Eleven key measures for monitoring general practice clinical activity during COVID-19: A retrospective cohort study using 48 million adults' primary care records in England through OpenSAFELY. Elife. 12. PMID 37498081 DOI: 10.7554/eLife.84673  0.01
2023 Hopcroft LE, Curtis HJ, Brown AD, Hulme WJ, Andrews CD, Morton CE, Inglesby P, Morley J, Mehrkar A, Bacon SC, Eggo RM, Mahalingasivam V, Parker EPK, Tomlinson LA, Bates C, ... ... Walker AJ, et al. First dose COVID-19 vaccine coverage amongst adolescents and children in England: an analysis of 3.21 million patients' primary care records in situ using OpenSAFELY. Wellcome Open Research. 8: 70. PMID 37346822 DOI: 10.12688/wellcomeopenres.18735.2  0.01
2023 Fisher L, Hopcroft LE, Rodgers S, Barrett J, Oliver K, Avery AJ, Evans D, Curtis H, Croker R, Macdonald O, Morley J, Mehrkar A, Bacon S, Davy S, Dillingham I, ... ... Walker AJ, et al. Changes in medication safety indicators in England throughout the covid-19 pandemic using OpenSAFELY: population based, retrospective cohort study of 57 million patients using federated analytics. Bmj Medicine. 2: e000392. PMID 37303488 DOI: 10.1136/bmjmed-2022-000392  0.01
2023 Lemanska A, Andrews C, Fisher L, Butler-Cole B, Mehrkar A, Roberts KJ, Goldacre B, Walker AJ, MacKenna B. A National Audit of Pancreatic Enzyme Prescribing in Pancreatic Cancer from 2015 to 2023 in England Using OpenSAFELY-TPP. Seminars in Oncology Nursing. 151439. PMID 37142468 DOI: 10.1016/j.soncn.2023.151439  0.01
2023 Hulme WJ, Williamson E, Horne EMF, Green A, McDonald HI, Walker AJ, Curtis HJ, Morton CE, MacKenna B, Croker R, Mehrkar A, Bacon S, Evans D, Inglesby P, Davy S, et al. Challenges in Estimating the Effectiveness of COVID-19 Vaccination Using Observational Data. Annals of Internal Medicine. PMID 37126810 DOI: 10.7326/M21-4269  0.01
2023 Nab L, Parker EPK, Andrews CD, Hulme WJ, Fisher L, Morley J, Mehrkar A, MacKenna B, Inglesby P, Morton CE, Bacon SCJ, Hickman G, Evans D, Ward T, Smith RM, ... ... Walker AJ, et al. Changes in COVID-19-related mortality across key demographic and clinical subgroups in England from 2020 to 2022: a retrospective cohort study using the OpenSAFELY platform. The Lancet. Public Health. 8: e364-e377. PMID 37120260 DOI: 10.1016/S2468-2667(23)00079-8  0.01
2023 Hopcroft LE, Massey J, Curtis HJ, Mackenna B, Croker R, Brown AD, O'Dwyer T, Macdonald O, Evans D, Inglesby P, Bacon SC, Goldacre B, Walker AJ. Data-Driven Identification of Unusual Prescribing Behavior: Analysis and Use of an Interactive Data Tool Using 6 Months of Primary Care Data From 6500 Practices in England. Jmir Medical Informatics. 11: e44237. PMID 37074763 DOI: 10.2196/44237  0.01
2023 Curtis HJ, MacKenna B, Wiedemann M, Fisher L, Croker R, Morton CE, Inglesby P, Walker AJ, Morley J, Mehrkar A, Bacon SC, Hickman G, Evans D, Ward T, Davy S, et al. OpenSAFELY NHS Service Restoration Observatory 2: changes in primary care clinical activity in England during the COVID-19 pandemic. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 37068964 DOI: 10.3399/BJGP.2022.0301  0.01
2023 Green ACA, Curtis HJ, Higgins R, Nab L, Mahalingasivam V, Smith RM, Mehrkar A, Inglesby P, Drysdale H, DeVito NJ, Croker R, Rentsch CT, Bhaskaran K, Tazare J, Zheng B, ... ... Walker AJ, et al. Trends, variation, and clinical characteristics of recipients of antiviral drugs and neutralising monoclonal antibodies for covid-19 in community settings: retrospective, descriptive cohort study of 23.4 million people in OpenSAFELY. Bmj Medicine. 2: e000276. PMID 36936265 DOI: 10.1136/bmjmed-2022-000276  0.01
2023 Hulme WJ, Horne EMF, Parker EPK, Keogh RH, Williamson EJ, Walker V, Palmer TM, Curtis HJ, Walker AJ, Andrews CD, Mehrkar A, Morley J, MacKenna B, Bacon SCJ, Goldacre B, et al. Comparative effectiveness of BNT162b2 versus mRNA-1273 covid-19 vaccine boosting in England: matched cohort study in OpenSAFELY-TPP. Bmj (Clinical Research Ed.). 380: e072808. PMID 36921925 DOI: 10.1136/bmj-2022-072808  0.01
2023 Parker EP, Tazare J, Hulme WJ, Bates C, Carr EJ, Cockburn J, Curtis HJ, Fisher L, Green AC, Harper S, Hester F, Horne EM, Loud F, Lyon S, Mahalingasivam V, ... ... Walker AJ, et al. Factors associated with COVID-19 vaccine uptake in people with kidney disease: an OpenSAFELY cohort study. Bmj Open. 13: e066164. PMID 36720568 DOI: 10.1136/bmjopen-2022-066164  0.01
2022 Tazare J, Walker AJ, Tomlinson LA, Hickman G, Rentsch CT, Williamson EJ, Bhaskaran K, Evans D, Wing K, Mathur R, Wong AY, Schultze A, Bacon S, Bates C, Morton CE, et al. Rates of serious clinical outcomes in survivors of hospitalisation with COVID-19 in England: a descriptive cohort study within the OpenSAFELY platform. Wellcome Open Research. 7: 142. PMID 37362009 DOI: 10.12688/wellcomeopenres.17735.1  0.01
2022 MacKenna B, Curtis HJ, Hopcroft LEM, Walker AJ, Croker R, Macdonald O, Evans SJW, Inglesby P, Evans D, Morley J, Bacon SCJ, Goldacre B. Identifying Patterns of Clinical Interest in Clinicians' Treatment Preferences: Hypothesis-free Data Science Approach to Prioritizing Prescribing Outliers for Clinical Review. Jmir Medical Informatics. 10: e41200. PMID 36538350 DOI: 10.2196/41200  0.01
2022 Gootee E, Stein C, Walker A, Daneshvari NO, Blaha MJ, Lima JAC, Gottesman RF, Johansen MC. Normal left atrial diameter is associated with better performance on a cognitive screener among a cohort of ischemic stroke patients. Frontiers in Neurology. 13: 1028296. PMID 36504665 DOI: 10.3389/fneur.2022.1028296  0.01
2022 Zheng B, Green ACA, Tazare J, Curtis HJ, Fisher L, Nab L, Schultze A, Mahalingasivam V, Parker EPK, Hulme WJ, Bacon SCJ, DeVito NJ, Bates C, Evans D, Inglesby P, ... ... Walker AJ, et al. Comparative effectiveness of sotrovimab and molnupiravir for prevention of severe covid-19 outcomes in patients in the community: observational cohort study with the OpenSAFELY platform. Bmj (Clinical Research Ed.). 379: e071932. PMID 36384890 DOI: 10.1136/bmj-2022-071932  0.01
2022 Swann OV, Lone NI, Harrison EM, Tomlinson LA, Walker AJ, Seaborne MJ, Pollock L, Farrell J, Hall PS, Seth S, Williams TC, Preston J, Ainsworth JS, Semple FF, Baillie JK, et al. Studying the Long-term Impact of COVID-19 in Kids (SLICK). Healthcare use and costs in children and young people following community-acquired SARS-CoV-2 infection: protocol for an observational study using linked primary and secondary routinely collected healthcare data from England, Scotland and Wales. Bmj Open. 12: e063271. PMID 36356998 DOI: 10.1136/bmjopen-2022-063271  0.01
2022 Lemanska A, Andrews C, Fisher L, Butler-Cole B, Mehrkar A, Roberts KJ, Goldacre B, Walker AJ, MacKenna B. The impact of COVID-19 on prescribing of pancreatic enzyme replacement therapy for people with unresectable pancreatic cancer in England. A cohort study using OpenSafely-TPP. Medrxiv : the Preprint Server For Health Sciences. PMID 36093352 DOI: 10.1101/2022.07.08.22277317  0.01
2022 Williams-Hall R, Trennery C, Sully K, Wratten S, Francis A, Chandler D, Flynn J, Turner M, Marks DJB, Sackeyfio A, Bracher M, Walker A, Walker-Nthenda L, Arbuckle R, Keeley T. A qualitative study to explore the symptoms and impacts of Crohn's disease and to develop the Crohn's Disease Diary. Quality of Life Research : An International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation. PMID 36056191 DOI: 10.1007/s11136-022-03233-9  0.01
2022 Curtis HJ, Inglesby P, MacKenna B, Croker R, Hulme WJ, Rentsch CT, Bhaskaran K, Mathur R, Morton CE, Bacon SC, Smith RM, Evans D, Mehrkar A, Tomlinson L, Walker AJ, et al. Recording of 'COVID-19 vaccine declined': a cohort study on 57.9 million National Health Service patients' records in situ using OpenSAFELY, England, 8 December 2020 to 25 May 2021. Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin. 27. PMID 35983770 DOI: 10.2807/1560-7917.ES.2022.27.33.2100885  0.01
2022 Andrews C, Schultze A, Curtis H, Hulme W, Tazare J, Evans S, Mehrkar A, Bacon S, Hickman G, Bates C, Parry J, Hester F, Harper S, Cockburn J, Evans D, ... ... Walker A, et al. OpenSAFELY: Representativeness of electronic health record platform OpenSAFELY-TPP data compared to the population of England. Wellcome Open Research. 7: 191. PMID 35966958 DOI: 10.12688/wellcomeopenres.18010.1  0.01
2022 Jiang Q, Jourdan F, Olierook HKH, Merle RE, Bourdet J, Fougerouse D, Godel B, Walker AT. Volume and rate of volcanic CO emissions governed the severity of past environmental crises. Proceedings of the National Academy of Sciences of the United States of America. 119: e2202039119. PMID 35878029 DOI: 10.1073/pnas.2202039119  0.01
2022 Horne EMF, Hulme WJ, Keogh RH, Palmer TM, Williamson EJ, Parker EPK, Green A, Walker V, Walker AJ, Curtis H, Fisher L, MacKenna B, Croker R, Hopcroft L, Park RY, et al. Waning effectiveness of BNT162b2 and ChAdOx1 covid-19 vaccines over six months since second dose: OpenSAFELY cohort study using linked electronic health records. Bmj (Clinical Research Ed.). 378: e071249. PMID 35858698 DOI: 10.1136/bmj-2022-071249  0.01
2022 Hulme WJ, Williamson EJ, Green ACA, Bhaskaran K, McDonald HI, Rentsch CT, Schultze A, Tazare J, Curtis HJ, Walker AJ, Tomlinson LA, Palmer T, Horne EMF, MacKenna B, Morton CE, et al. Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY. Bmj (Clinical Research Ed.). 378: e068946. PMID 35858680 DOI: 10.1136/bmj-2021-068946  0.01
2022 Green A, Curtis H, Hulme W, Williamson E, McDonald H, Bhaskaran K, Rentsch C, Schultze A, MacKenna B, Mahalingasivam V, Tomlinson L, Walker A, Fisher L, Massey J, Andrews C, et al. Describing the population experiencing COVID-19 vaccine breakthrough following second vaccination in England: a cohort study from OpenSAFELY. Bmc Medicine. 20: 243. PMID 35791013 DOI: 10.1186/s12916-022-02422-0  0.01
2022 Thompson EJ, Williams DM, Walker AJ, Mitchell RE, Niedzwiedz CL, Yang TC, Huggins CF, Kwong ASF, Silverwood RJ, Di Gessa G, Bowyer RCE, Northstone K, Hou B, Green MJ, Dodgeon B, et al. Long COVID burden and risk factors in 10 UK longitudinal studies and electronic health records. Nature Communications. 13: 3528. PMID 35764621 DOI: 10.1038/s41467-022-30836-0  0.01
2022 Walker JL, Schultze A, Tazare J, Tamborska A, Singh B, Donegan K, Stowe J, Morton CE, Hulme WJ, Curtis HJ, Williamson EJ, Mehrkar A, Eggo RM, Rentsch CT, Mathur R, ... ... Walker AJ, et al. Safety of COVID-19 vaccination and acute neurological events: A self-controlled case series in England using the OpenSAFELY platform. Vaccine. PMID 35715350 DOI: 10.1016/j.vaccine.2022.06.010  0.01
2022 MacKenna B, Kennedy NA, Mehrkar A, Rowan A, Galloway J, Matthewman J, Mansfield KE, Bechman K, Yates M, Brown J, Schultze A, Norton S, Walker AJ, Morton CE, Harrison D, et al. Risk of severe COVID-19 outcomes associated with immune-mediated inflammatory diseases and immune-modifying therapies: a nationwide cohort study in the OpenSAFELY platform. The Lancet. Rheumatology. PMID 35698725 DOI: 10.1016/S2665-9913(22)00098-4  0.01
2022 Shah SA, Brophy S, Kennedy J, Fisher L, Walker A, Mackenna B, Curtis H, Inglesby P, Davy S, Bacon S, Goldacre B, Agrawal U, Moore E, Simpson CR, Macleod J, et al. Impact of first UK COVID-19 lockdown on hospital admissions: Interrupted time series study of 32 million people. Eclinicalmedicine. 49: 101462. PMID 35611160 DOI: 10.1016/j.eclinm.2022.101462  0.01
2022 Wong AY, Tomlinson L, Brown JP, Elson W, Walker AJ, Schultze A, Morton CE, Evans D, Inglesby P, MacKenna B, Bhaskaran K, Rentsch CT, Powell E, Williamson E, Croker R, et al. Association between oral anticoagulants and COVID-19-related outcomes: a population-based cohort study. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 35440465 DOI: 10.3399/BJGP.2021.0689  0.01
2022 Bajzik V, DeBerg HA, Garabatos N, Rust BJ, Obrien KK, Nguyen QA, O'Rourke C, Smith A, Walker AH, Quinn C, Gersuk VH, Farrington M, Jeong D, Vickery BP, Adelman DC, et al. Oral desensitization therapy for peanut allergy induces dynamic changes in peanut-specific immune responses. Allergy. PMID 35266148 DOI: 10.1111/all.15276  0.01
2022 Williamson EJ, Tazare J, Bhaskaran K, McDonald HI, Walker AJ, Tomlinson L, Wing K, Bacon S, Bates C, Curtis HJ, Forbes HJ, Minassian C, Morton CE, Nightingale E, Mehrkar A, et al. Comparison of methods for predicting COVID-19-related death in the general population using the OpenSAFELY platform. Diagnostic and Prognostic Research. 6: 6. PMID 35197114 DOI: 10.1186/s41512-022-00120-2  0.01
2022 Fisher L, Speed V, Curtis HJ, Rentsch CT, Wong AYS, Schultze A, Massey J, Inglesby P, Morton CE, Wood M, Walker AJ, Morley J, Mehrkar A, Bacon S, Hickman G, et al. Potentially inappropriate prescribing of DOACs to people with mechanical heart valves: A federated analysis of 57.9 million patients' primary care records in situ using OpenSAFELY. Thrombosis Research. 211: 150-153. PMID 35168181 DOI: 10.1016/j.thromres.2022.01.023  0.01
2022 Innes H, Walker AJ, Benselin J, Grove JI, Pedergnana V, Lin SK, McLauchlan J, Hutchinson SJ, Barnes E, Irving WL, Guha IN. Comprehensive Comparative Analysis of Standard Validated, Genetic, and Novel Biomarkers to Enhance Prognostic Risk-stratification in Patients with Hepatitis C Cirrhosis. Clinical and Translational Gastroenterology. PMID 35142723 DOI: 10.14309/ctg.0000000000000462  0.01
2022 Bhaskaran K, Rentsch CT, Hickman G, Hulme WJ, Schultze A, Curtis HJ, Wing K, Warren-Gash C, Tomlinson L, Bates CJ, Mathur R, MacKenna B, Mahalingasivam V, Wong A, Walker AJ, et al. Overall and cause-specific hospitalisation and death after COVID-19 hospitalisation in England: A cohort study using linked primary care, secondary care, and death registration data in the OpenSAFELY platform. Plos Medicine. 19: e1003871. PMID 35077449 DOI: 10.1371/journal.pmed.1003871  0.01
2022 Schultze A, Nightingale E, Evans D, Hulme W, Rosello A, Bates C, Cockburn J, MacKenna B, Curtis HJ, Morton CE, Croker R, Bacon S, McDonald HI, Rentsch CT, Bhaskaran K, ... ... Walker AJ, et al. Mortality among Care Home Residents in England during the first and second waves of the COVID-19 pandemic: an observational study of 4.3 million adults over the age of 65. The Lancet Regional Health. Europe. 14: 100295. PMID 35036983 DOI: 10.1016/j.lanepe.2021.100295  0.01
2022 MacKenna B, Curtis HJ, Walker AJ, Goldacre B. Trends and clinical characteristics of 57.9 million COVID-19 vaccine recipients: a federated analysis of patients' primary care records using OpenSAFELY. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. 72: 10. PMID 34972809 DOI: 10.3399/bjgp22X718049  0.01
2021 Kim H, Walker A, Shea J, Hillis AE. Written Discourse Task Helps to Identify Progression from Mild Cognitive Impairment to Dementia. Dementia and Geriatric Cognitive Disorders. 1-8. PMID 34814138 DOI: 10.1159/000519884  0.01
2021 Curtis HJ, MacKenna B, Walker AJ, Croker R, Mehrkar A, Morton C, Bacon S, Hickman G, Inglesby P, Bates C, Evans D, Ward T, Cockburn J, Davy S, et al. OpenSAFELY: impact of national guidance on switching anticoagulant therapy during COVID-19 pandemic. Open Heart. 8. PMID 34785588 DOI: 10.1136/openhrt-2021-001784  0.01
2021 Curtis HJ, Inglesby P, Morton CE, MacKenna B, Green A, Hulme W, Walker AJ, Morley J, Mehrkar A, Bacon S, Hickman G, Bates C, Croker R, Evans D, Ward T, et al. Trends and clinical characteristics of 57.9 million COVID-19 vaccine recipients: a federated analysis of patients' primary care records using OpenSAFELY. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 34750106 DOI: 10.3399/BJGP.2021.0376  0.01
2021 Curtis HJ, MacKenna B, Croker R, Inglesby P, Walker AJ, Morley J, Mehrkar A, Morton CE, Bacon S, Hickman G, Bates C, Evans D, Ward T, Cockburn J, Davy S, et al. OpenSAFELY NHS Service Restoration Observatory 1: primary care clinical activity in England during the first wave of COVID-19. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 34750105 DOI: 10.3399/BJGP.2021.0380  0.01
2021 Wong AYS, Tomlinson LA, Brown JP, Elson W, Walker AJ, Schultze A, Morton CE, Evans D, Inglesby P, MacKenna B, Bhaskaran K, Rentsch CT, Powell E, Williamson E, et al. Association between warfarin and COVID-19-related outcomes compared with direct oral anticoagulants: population-based cohort study. Journal of Hematology & Oncology. 14: 172. PMID 34666811 DOI: 10.1186/s13045-021-01185-0  0.01
2021 Grint DJ, Wing K, Houlihan C, Gibbs HP, Evans SJW, Williamson E, McDonald HI, Bhaskaran K, Evans D, Walker AJ, Hickman G, Nightingale E, Schultze A, Rentsch CT, Bates C, et al. Severity of SARS-CoV-2 alpha variant (B.1.1.7) in England. Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America. PMID 34487522 DOI: 10.1093/cid/ciab754  0.01
2021 Schultze A, Bates C, Cockburn J, MacKenna B, Nightingale E, Curtis HJ, Hulme WJ, Morton CE, Croker R, Bacon S, McDonald HI, Rentsch CT, Bhaskaran K, Mathur R, Tomlinson LA, ... ... Walker AJ, et al. Identifying Care Home Residents in Electronic Health Records - An OpenSAFELY Short Data Report. Wellcome Open Research. 6: 90. PMID 34471703 DOI: 10.12688/wellcomeopenres.16737.1  0.01
2021 Walker AJ, MacKenna B, Inglesby P, Tomlinson L, Rentsch CT, Curtis HJ, Morton CE, Morley J, Mehrkar A, Bacon S, Hickman G, Bates C, Croker R, Evans D, Ward T, et al. Clinical coding of long COVID in English primary care: a federated analysis of 58 million patient records using OpenSAFELY. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 34340970 DOI: 10.3399/BJGP.2021.0301  0.01
2021 Williamson EJ, McDonald HI, Bhaskaran K, Walker AJ, Bacon S, Davy S, Schultze A, Tomlinson L, Bates C, Ramsay M, Curtis HJ, Forbes H, Wing K, Minassian C, Tazare J, et al. Risks of covid-19 hospital admission and death for people with learning disability: population based cohort study using the OpenSAFELY platform. Bmj (Clinical Research Ed.). 374: n1592. PMID 34261639 DOI: 10.1136/bmj.n1592  0.01
2021 Sheppard SM, Meier EL, Zezinka Durfee A, Walker A, Shea J, Hillis AE. Characterizing subtypes and neural correlates of receptive aprosodia in acute right hemisphere stroke. Cortex; a Journal Devoted to the Study of the Nervous System and Behavior. 141: 36-54. PMID 34029857 DOI: 10.1016/j.cortex.2021.04.003  0.01
2021 Bhaskaran K, Bacon S, Evans SJ, Bates CJ, Rentsch CT, MacKenna B, Tomlinson L, Walker AJ, Schultze A, Morton CE, Grint D, Mehrkar A, Eggo RM, Inglesby P, Douglas IJ, et al. Factors associated with deaths due to COVID-19 versus other causes: population-based cohort analysis of UK primary care data and linked national death registrations within the OpenSAFELY platform. The Lancet Regional Health. Europe. 6: 100109. PMID 33997835 DOI: 10.1016/j.lanepe.2021.100109  0.01
2021 Bogowicz P, Curtis HJ, Walker AJ, Cowen P, Geddes J, Goldacre B. Trends and variation in antidepressant prescribing in English primary care. Bjgp Open. PMID 33985965 DOI: 10.3399/BJGPO.2021.0020  0.01
2021 Mathur R, Rentsch CT, Morton CE, Hulme WJ, Schultze A, MacKenna B, Eggo RM, Bhaskaran K, Wong AYS, Williamson EJ, Forbes H, Wing K, McDonald HI, Bates C, Bacon S, ... Walker AJ, et al. Ethnic differences in SARS-CoV-2 infection and COVID-19-related hospitalisation, intensive care unit admission, and death in 17 million adults in England: an observational cohort study using the OpenSAFELY platform. Lancet (London, England). PMID 33939953 DOI: 10.1016/S0140-6736(21)00634-6  0.01
2021 Curtis HJ, Bacon S, Croker R, Walker AJ, Perera R, Hallsworth M, Harper H, Mahtani KR, Heneghan C, Goldacre B. Evaluating the impact of a very low-cost intervention to increase practices' engagement with data and change prescribing behaviour: a randomized trial in English primary care. Family Practice. PMID 33783497 DOI: 10.1093/fampra/cmaa128  0.01
2021 Grint DJ, Wing K, Williamson E, McDonald HI, Bhaskaran K, Evans D, Evans SJ, Walker AJ, Hickman G, Nightingale E, Schultze A, Rentsch CT, Bates C, Cockburn J, Curtis HJ, et al. Case fatality risk of the SARS-CoV-2 variant of concern B.1.1.7 in England, 16 November to 5 February. Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin. 26. PMID 33739254 DOI: 10.2807/1560-7917.ES.2021.26.11.2100256  0.01
2021 Forbes H, Morton CE, Bacon S, McDonald HI, Minassian C, Brown JP, Rentsch CT, Mathur R, Schultze A, DeVito NJ, MacKenna B, Hulme WJ, Croker R, Walker AJ, Williamson EJ, et al. Association between living with children and outcomes from covid-19: OpenSAFELY cohort study of 12 million adults in England. Bmj (Clinical Research Ed.). 372: n628. PMID 33737413 DOI: 10.1136/bmj.n628  0.01
2021 Walker AJ, Croker R, Curtis HJ, MacKenna B, Goldacre B. Trends in antidepressant prescribing in England. The Lancet. Psychiatry. PMID 33662302 DOI: 10.1016/S2215-0366(21)00081-X  0.01
2021 Rentsch CT, DeVito NJ, MacKenna B, Morton CE, Bhaskaran K, Brown JP, Schultze A, Hulme WJ, Croker R, Walker AJ, Williamson EJ, Bates C, Bacon S, Mehrkar A, Curtis HJ, et al. Hydroxychloroquine treatment does not reduce COVID-19 mortality; underdosing to the wrong patients? - Authors' reply. The Lancet. Rheumatology. 3: e172-e173. PMID 33655224 DOI: 10.1016/S2665-9913(21)00030-8  0.01
2021 Wong AY, MacKenna B, Morton CE, Schultze A, Walker AJ, Bhaskaran K, Brown JP, Rentsch CT, Williamson E, Drysdale H, Croker R, Bacon S, Hulme W, Bates C, Curtis HJ, et al. Use of non-steroidal anti-inflammatory drugs and risk of death from COVID-19: an OpenSAFELY cohort analysis based on two cohorts. Annals of the Rheumatic Diseases. PMID 33478953 DOI: 10.1136/annrheumdis-2020-219517  0.01
2020 Rentsch CT, DeVito NJ, MacKenna B, Morton CE, Bhaskaran K, Brown JP, Schultze A, Hulme WJ, Croker R, Walker AJ, Williamson EJ, Bates C, Bacon S, Mehrkar A, Curtis HJ, et al. Effect of pre-exposure use of hydroxychloroquine on COVID-19 mortality: a population-based cohort study in patients with rheumatoid arthritis or systemic lupus erythematosus using the OpenSAFELY platform. The Lancet Rheumatology. PMID 33349815 DOI: 10.1016/S2665-9913(20)30378-7  0.01
2020 Walker A, Erwig L, Foster K, Nevin K, Wenzel J, Worm M, Williams N, Ratia N, Hoang B, Schneider-Merck T, Gisbert S, Carnarius H, Dickson M. Safety, pharmacokinetics and pharmacodynamics of a topical SYK inhibitor in cutaneous lupus erythematosus: A double-blind Phase Ib study. Experimental Dermatology. PMID 33336508 DOI: 10.1111/exd.14253  0.01
2020 Bhaskaran K, Rentsch CT, MacKenna B, Schultze A, Mehrkar A, Bates CJ, Eggo RM, Morton CE, Bacon SCJ, Inglesby P, Douglas IJ, Walker AJ, McDonald HI, Cockburn J, Williamson EJ, et al. HIV infection and COVID-19 death: a population-based cohort analysis of UK primary care data and linked national death registrations within the OpenSAFELY platform. The Lancet. Hiv. PMID 33316211 DOI: 10.1016/S2352-3018(20)30305-2  0.01
2020 Williamson E, Bhaskaran K, Walker A, Smeeth L, Goldacre B. The Authors Respond. Epidemiology (Cambridge, Mass.). PMID 33105269 DOI: 10.1097/EDE.0000000000001260  0.01
2020 MacKenna B, Bacon S, Walker AJ, Curtis HJ, Croker R, Goldacre B. Impact of Electronic Health Record Interface Design on Unsafe Prescribing of Ciclosporin, Tacrolimus, and Diltiazem: Cohort Study in English National Health Service Primary Care. Journal of Medical Internet Research. 22: e17003. PMID 33064085 DOI: 10.2196/17003  0.01
2020 Schultze A, Walker AJ, MacKenna B, Morton CE, Bhaskaran K, Brown JP, Rentsch CT, Williamson E, Drysdale H, Croker R, Bacon S, Hulme W, Bates C, Curtis HJ, Mehrkar A, et al. Risk of COVID-19-related death among patients with chronic obstructive pulmonary disease or asthma prescribed inhaled corticosteroids: an observational cohort study using the OpenSAFELY platform. The Lancet. Respiratory Medicine. PMID 32979987 DOI: 10.1016/S2213-2600(20)30415-X  0.01
2020 Johnson PJ, Berhane S, Walker AJ, Gordon FH, Ryder SD, McPherson S, Sreedharan A, Ustianowski AA, Agarwal K, Mutimer D, Kumada T, Toyoda H, Irving WL. Impact Of Direct Acting Antiviral Agents On Liver Function In Patients With Chronic Hepatitis C Virus Infection. Journal of Viral Hepatitis. PMID 32978982 DOI: 10.1111/jvh.13408  0.01
2020 Liu M, MacKenna B, Feldman WB, Walker AJ, Avorn J, Kesselheim AS, Goldacre B. Projected spending for brand-name drugs in English primary care given US prices: a cross-sectional study. Journal of the Royal Society of Medicine. 113: 350-359. PMID 32910868 DOI: 10.1177/0141076820918238  0.01
2020 MacKenna B, Curtis HJ, Walker AJ, Bacon S, Croker R, Goldacre B. Suboptimal prescribing behaviour associated with clinical software design features: a retrospective cohort study in English NHS primary care. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 32784218 DOI: 10.3399/bjgp20X712313  0.01
2020 Williamson EJ, Walker AJ, Bhaskaran K, Bacon S, Bates C, Morton CE, Curtis HJ, Mehrkar A, Evans D, Inglesby P, Cockburn J, McDonald HI, MacKenna B, Tomlinson L, Douglas IJ, et al. OpenSAFELY: factors associated with COVID-19 death in 17 million patients. Nature. PMID 32640463 DOI: 10.1038/S41586-020-2521-4  0.01
2020 Curtis HJ, Walker AJ, MacKenna B, Croker R, Goldacre B. Prescription of suboptimal statin treatment regimens: a retrospective cohort study of trends and variation in English primary care. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 32601055 DOI: 10.3399/bjgp20X710873  0.01
2020 MacKenna B, Curtis HJ, Walker AJ, Croker R, Bacon S, Goldacre B. Trends and variation in unsafe prescribing of methotrexate: a cohort study in English NHS primary care. The British Journal of General Practice : the Journal of the Royal College of General Practitioners. PMID 32571771 DOI: 10.3399/bjgp20X710993  0.01
2019 Walker AJ, Pretis F, Powell-Smith A, Goldacre B. Variation in responsiveness to warranted behaviour change among NHS clinicians: novel implementation of change detection methods in longitudinal prescribing data. Bmj (Clinical Research Ed.). 367: l5205. PMID 31578187 DOI: 10.1136/bmj.l5205  0.01
2019 Whiting D, Croker R, Watson J, Brogan A, Walker AJ, Lewis T. Optimising laboratory monitoring of chronic conditions in primary care: a quality improvement framework. Bmj Open Quality. 8: e000349. PMID 30997410 DOI: 10.1136/bmjoq-2018-000349  0.01
2019 Henry ML, Abdul-Sultan A, Walker AJ, West J, Humes DJ. Duration and Magnitude of Postoperative Risk of Venous Thromboembolism after Cholecystectomy: A Population-Based Cohort Study. Digestive Surgery. 1-7. PMID 30943526 DOI: 10.1159/000496435  0.01
2019 Goldacre B, Reynolds C, Powell-Smith A, Walker AJ, Yates TA, Croker R, Smeeth L. Do doctors in dispensing practices with a financial conflict of interest prescribe more expensive drugs? A cross-sectional analysis of English primary care prescribing data. Bmj Open. 9: e026886. PMID 30813120 DOI: 10.1136/bmjopen-2018-026886  0.01
2019 Walker AJ, Curtis HJ, Goldacre B. Impact of Chief Medical Officer activity on prescribing of antibiotics in England: an interrupted time series analysis. The Journal of Antimicrobial Chemotherapy. PMID 30689889 DOI: 10.1093/jac/dky528  0.01
2019 Walker AJ, Curtis HJ, Croker R, Bacon S, Goldacre B. Measuring the Impact of an Open Web-Based Prescribing Data Analysis Service on Clinical Practice: Cohort Study on NHS England Data. Journal of Medical Internet Research. 21: e10929. PMID 30664459 DOI: 10.2196/10929  0.01
2018 Croker R, Walker AJ, Goldacre B. Why did some practices not implement new antibiotic prescribing guidelines on urinary tract infection? A cohort study and survey in NHS England primary care. The Journal of Antimicrobial Chemotherapy. PMID 30590552 DOI: 10.1093/jac/dky509  0.01
2018 Curtis HJ, Croker R, Walker AJ, Richards GC, Quinlan J, Goldacre B. Opioid prescribing trends and geographical variation in England, 1998-2018: a retrospective database study. The Lancet. Psychiatry. PMID 30580987 DOI: 10.1016/S2215-0366(18)30471-1  0.01
2018 Walker AJ, Bacon S, Curtis H, Croker R, MacKenna B, Goldacre B. Six months on: NHS England needs to focus on dissemination, implementation and audit of its low-priority initiative. Journal of the Royal Society of Medicine. 141076818808429. PMID 30507285 DOI: 10.1177/0141076818808429  0.01
2018 Curtis HJ, Walker AJ, Mahtani KR, Goldacre B. Time trends and geographical variation in prescribing of antibiotics in England 1998-2017. The Journal of Antimicrobial Chemotherapy. PMID 30239809 DOI: 10.1093/jac/dky377  0.01
2018 Walker AJ, Bacon S, Croker R, Goldacre B. Detecting change in comparison to peers in NHS prescribing data: a novel application of cumulative sum methodology. Bmc Medical Informatics and Decision Making. 18: 62. PMID 29986693 DOI: 10.1186/s12911-018-0642-6  0.01
2018 Croker R, Smyth D, Walker AJ, Goldacre B. The clinician impact and financial cost to the NHS of litigation over pregabalin: a cohort study in English primary care. Bmj Open. 8: e022416. PMID 29880577 DOI: 10.1136/bmjopen-2018-022416  0.01
2018 Walker AJ, Curtis HJ, Bacon S, Croker R, Goldacre B. Trends and variation in prescribing of low-priority treatments identified by NHS England: a cross-sectional study and interactive data tool in English primary care. Journal of the Royal Society of Medicine. 141076818769408. PMID 29787684 DOI: 10.1177/0141076818769408  0.01
2018 Curtis HJ, Dennis JM, Shields BM, Walker AJ, Bacon S, Hattersley AT, Jones AG, Goldacre B. Time Trends and Geographical Variation in Prescribing of Drugs for Diabetes in England 1998-2017. Diabetes, Obesity & Metabolism. PMID 29732725 DOI: 10.1111/dom.13346  0.01
2018 Curtis HJ, Walker AJ, Goldacre B. Impact of NICE guidance on tamoxifen prescribing in England 2011-2017: an interrupted time series analysis. British Journal of Cancer. PMID 29681615 DOI: 10.1038/s41416-018-0065-2  0.01
2018 Walker AJ, Croker R, Bacon S, Ernst E, Curtis HJ, Goldacre B. Is use of homeopathy associated with poor prescribing in English primary care? A cross-sectional study. Journal of the Royal Society of Medicine. 141076818765779. PMID 29669216 DOI: 10.1177/0141076818765779  0.01
2018 Walker AJ, Curtis HJ, Bacon S, Croker R, Goldacre B. Trends, geographical variation and factors associated with prescribing of gluten-free foods in English primary care: a cross-sectional study. Bmj Open. 8: e021312. PMID 29661914 DOI: 10.1136/bmjopen-2017-021312  0.01
2018 Croker R, Walker AJ, Bacon S, Curtis HJ, French L, Goldacre B. New mechanism to identify cost savings in English NHS prescribing: minimising 'price per unit', a cross-sectional study. Bmj Open. 8: e019643. PMID 29439078 DOI: 10.1136/bmjopen-2017-019643  0.01
2017 Khan UT, Walker AJ, Baig S, Card TR, Kirwan CC, Grainge MJ. Venous thromboembolism and mortality in breast cancer: cohort study with systematic review and meta-analysis. Bmc Cancer. 17: 747. PMID 29126386 DOI: 10.1186/s12885-017-3719-1  0.01
2017 Chowdhury MM, Ambler GK, Al Zuhir N, Walker A, Atkins ER, Winterbottom A, Coughlin PA. Morphometric Assessment as a Predictor of Outcome in Older Vascular Surgery Patients. Annals of Vascular Surgery. PMID 28887259 DOI: 10.1016/j.avsg.2017.08.002  0.01
2017 Hudson B, Walker AJ, Irving WL. Comorbidities and medications of patients with chronic hepatitis C under specialist care in the UK. Journal of Medical Virology. PMID 28480974 DOI: 10.1002/jmv.24848  0.01
2016 Walker AJ, Baldwin DR, Card TR, Powell HA, Hubbard RB, Grainge MJ. Risk of venous thromboembolism in people with lung cancer: a cohort study using linked UK healthcare data. British Journal of Cancer. PMID 27802452 DOI: 10.1038/bjc.2016.364  0.01
2016 Ratib S, Walker AJ, Card TR, Grainge MJ. Risk of venous thromboembolism in hospitalised cancer patients in England-a cohort study. Journal of Hematology & Oncology. 9: 60. PMID 27461026 DOI: 10.1186/s13045-016-0291-0  0.01
2016 Cheung MC, Walker AJ, Hudson BE, Verma S, McLauchlan J, Mutimer DJ, Brown A, Gelson WT, MacDonald DC, Agarwal K, Foster GR, Irving WL. Outcomes after successful direct acting antiviral therapy for patients with chronic hepatitis C and decompensated cirrhosis. Journal of Hepatology. PMID 27388925 DOI: 10.1016/j.jhep.2016.06.019  0.01
2016 Walker AJ, Baldwin DR, Card TR, Powell HA, Hubbard RB, Grainge MJ. Risk of venous thromboembolism in people with lung cancer: a cohort study using linked UK healthcare data. British Journal of Cancer. PMID 27253177 DOI: 10.1038/bjc.2016.143  0.01
2016 Foster GR, Irving WL, Cheung MC, Walker AJ, Hudson BE, Verma S, McLauchlan J, Mutimer DJ, Brown A, Gelson WT, MacDonald DC, Agarwal K. Cohort study of the impact of direct acting antiviral therapy in patients with chronic hepatitis C and decompensated cirrhosis. Journal of Hepatology. PMID 26829205 DOI: 10.1016/j.jhep.2016.01.029  0.01
2015 Numbere B, Fleming KM, Walker A, Card TR. Adrenergic blockers and the risk for common solid cancers: a case-control study. European Journal of Cancer Prevention : the Official Journal of the European Cancer Prevention Organisation (Ecp). PMID 26649549 DOI: 10.1097/CEJ.0000000000000218  0.01
2015 Walker AJ, West J, Card TR, Crooks C, Kirwan CC, Grainge MJ. When are breast cancer patients at highest risk of venous thromboembolism: a cohort study using English healthcare data. Blood. PMID 26574606 DOI: 10.1182/blood-2015-01-625582  0.01
2015 Ratib S, Fleming KM, Crooks CJ, Walker AJ, West J. Causes of Death in People with Liver Cirrhosis in England Compared with the General Population: A Population-Based Cohort Study. The American Journal of Gastroenterology. PMID 26169512 DOI: 10.1038/ajg.2015.191  0.01
2015 Humes DJ, Nordenskjöld A, Walker AJ, West J, Ludvigsson JF. Risk of venous thromboembolism in children after general surgery. Journal of Pediatric Surgery. PMID 26078211 DOI: 10.1016/j.jpedsurg.2015.05.010  0.01
2014 Walker AJ, Grainge MJ, Card TR, West J, Ranta S, Ludvigsson JF. Venous thromboembolism in children with cancer - a population-based cohort study. Thrombosis Research. 133: 340-4. PMID 24388573 DOI: 10.1016/j.thromres.2013.12.021  0.01
2013 Walker AJ, Card TR, West J, Crooks C, Grainge MJ. Incidence of venous thromboembolism in patients with cancer - a cohort study using linked United Kingdom databases. European Journal of Cancer (Oxford, England : 1990). 49: 1404-13. PMID 23146958 DOI: 10.1016/j.ejca.2012.10.021  0.01
2012 Walker AJ, Grainge M, Bates TE, Card TR. Survival of glioma and colorectal cancer patients using tricyclic antidepressants post-diagnosis. Cancer Causes & Control : Ccc. 23: 1959-64. PMID 23065071 DOI: 10.1007/s10552-012-0073-0  0.01
2011 Walker AJ, West J, Grainge MJ, Card TR. Angiotensin converting enzyme inhibitors and hepatocellular carcinoma incidence in the General Practice Research Database. Cancer Causes & Control : Ccc. 22: 1743-7. PMID 21909951 DOI: 10.1007/s10552-011-9837-1  0.01
2008 Mustafa S, Walker A, Bennett G, Wigmore PM. 5-Fluorouracil chemotherapy affects spatial working memory and newborn neurons in the adult rat hippocampus. The European Journal of Neuroscience. 28: 323-30. PMID 18702703 DOI: 10.1111/j.1460-9568.2008.06325.x  0.01
2007 Freitag T, Jerram RM, Walker AM, Warman CG. Surgical management of common canine prostatic conditions. Compendium (Yardley, Pa). 29: 656-8, 660, 662-3 pa. PMID 18210976  0.01
2005 Jerram RM, Walker AM, Warman CG. Proximal tibial intraarticular ostectomy for treatment of canine cranial cruciate ligament injury. Veterinary Surgery : Vs. 34: 196-205. PMID 16115075 DOI: 10.1111/j.1532-950x.2005.00031.x  0.01
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