2024
Ursodeoxycholic acid and severe COVID-19 outcomes in a cohort study using the OpenSAFELY platform
Costello R, Waller K, Smith R, Mells G, Wong A, Schultze A, Mahalingasivam V, Herrett E, Zheng B, Lin L, MacKenna B, Mehrkar A, Bacon S, Goldacre B, Tomlinson L, Tazare J, Rentsch C. Ursodeoxycholic acid and severe COVID-19 outcomes in a cohort study using the OpenSAFELY platform. Communications Medicine 2024, 4: 238. PMID: 39562612, PMCID: PMC11576861, DOI: 10.1038/s43856-024-00664-y.Peer-Reviewed Original ResearchCOVID-19 hospitalisationSevere COVID-19 outcomesCOVID-19 related hospitalisationCOVID-19 outcomesCohort studyPopulation-based cohort studyHazard ratioPrimary care recordsDeath registration dataOpenSAFELY-TPP platformApproval of NHS EnglandConfidence intervalsEstimate hazard ratiosCox proportional hazards regressionProportional hazards regressionPre-specified confoundersAbsolute risk reductionOpenSAFELY platformCare recordsNHS EnglandConfounder adjustmentEligible individualsRegistration dataHazards regressionHospital records
2023
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
Green A, Curtis H, Higgins R, Nab L, Mahalingasivam V, Smith R, Mehrkar A, Inglesby P, Drysdale H, DeVito N, Croker R, Rentsch C, Bhaskaran K, Tazare J, Zheng B, Andrews C, Bacon S, Davy S, Dillingham I, Evans D, Fisher L, Hickman G, Hopcroft L, Hulme W, Massey J, MacDonald O, Morley J, Morton C, Park R, Walker A, Ward T, Wiedemann M, Bates C, Cockburn J, Parry J, Hester F, Harper S, Douglas I, Evans S, Goldacre B, Tomlinson L, MacKenna B. 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 2023, 2: e000276. PMID: 36936265, PMCID: PMC9951378, DOI: 10.1136/bmjmed-2022-000276.Peer-Reviewed Original ResearchDescriptive cohort studyHigh-risk groupSevere outcomesHigh riskCohort studyHome residentsRisk groupsAntiviral drugsCOVID-19Community settingsMonoclonal antibodiesCasirivimab/imdevimabLow treatment coverageNHS regionProportion of patientsCOVID-19 infectionRoutine clinical dataOpenSAFELY platformUnvaccinated patientsClinical characteristicsLiver diseaseClinical dataTreatment coverageEligibility criteriaPatients
2022
Safety of COVID-19 vaccination and acute neurological events: A self-controlled case series in England using the OpenSAFELY platform
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, Bacon S, Walker AJ, Davy S, Evans D, Inglesby P, Hickman G, MacKenna B, Tomlinson L, Ca Green A, Fisher L, Cockburn J, Parry J, Hester F, Harper S, Bates C, Evans SJ, Solomon T, Andrews NJ, Douglas IJ, Goldacre B, Smeeth L, McDonald HI. Safety of COVID-19 vaccination and acute neurological events: A self-controlled case series in England using the OpenSAFELY platform. Vaccine 2022, 40: 4479-4487. PMID: 35715350, PMCID: PMC9170533, DOI: 10.1016/j.vaccine.2022.06.010.Peer-Reviewed Original ResearchConceptsGuillain-Barré syndromeAcute neurological eventsBell's palsyCOVID-19 vaccinationTransverse myelitisChAdOx1 vaccineOpenSAFELY platformFirst doseNeurological eventsRate of GBSSelf-controlled case series designIncidence rate ratiosPrimary care dataRare adverse eventsSelf-controlled case seriesConditional Poisson regressionCOVID-19 vaccineCase series designBNT162b2 vaccineesChAdOx1 vaccinationVaccine recipientsAdverse eventsHospital admissionCase seriesAbsolute riskRates of serious clinical outcomes in survivors of hospitalisation with COVID-19 in England: a descriptive cohort study within the OpenSAFELY platform
Collaborative T, Tazare J, Walker A, Tomlinson L, Hickman G, Rentsch C, Williamson E, Bhaskaran K, Evans D, Wing K, Mathur R, Wong A, Schultze A, Bacon S, Bates C, Morton C, Curtis H, Nightingale E, McDonald H, Mehrkar A, Inglesby P, Davy S, MacKenna B, Cockburn J, Hulme W, Warren-Gash C, Bhate K, Nitsch D, Powell E, Mulick A, Forbes H, Minassian C, Croker R, Parry J, Hester F, Harper S, Eggo R, Evans S, Smeeth L, Douglas I, Goldacre B. 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 2022, 7: 142. PMID: 37362009, PMCID: PMC10285340, DOI: 10.12688/wellcomeopenres.17735.1.Peer-Reviewed Original ResearchDeep vein thrombosisCOVID-19 patientsHigh riskGeneral populationOpenSAFELY platformPulmonary embolismMyocardial infarctionCOVID-19Type 2 diabetes mellitus diagnosisSerious clinical outcomesPrimary care recordsDescriptive cohort studyCOVID-19 populationRisk of outcomesDiabetes mellitus diagnosisAge/sexMajority of outcomesPulmonary complicationsComparator cohortCohort studyIschemic strokeVein thrombosisHeart failureClinical outcomesAdverse outcomesComparison of methods for predicting COVID-19-related death in the general population using the OpenSAFELY platform
Williamson E, Tazare J, Bhaskaran K, McDonald H, Walker A, Tomlinson L, Wing K, Bacon S, Bates C, Curtis H, Forbes H, Minassian C, Morton C, Nightingale E, Mehrkar A, Evans D, Nicholson B, Leon D, Inglesby P, MacKenna B, Davies N, DeVito N, Drysdale H, Cockburn J, Hulme W, Morley J, Douglas I, Rentsch C, Mathur R, Wong A, Schultze A, Croker R, Parry J, Hester F, Harper S, Grieve R, Harrison D, Steyerberg E, Eggo R, Diaz-Ordaz K, Keogh R, Evans S, Smeeth L, Goldacre B. Comparison of methods for predicting COVID-19-related death in the general population using the OpenSAFELY platform. Diagnostic And Prognostic Research 2022, 6: 6. PMID: 35197114, PMCID: PMC8865947, DOI: 10.1186/s41512-022-00120-2.Peer-Reviewed Original ResearchCOVID-19-related deathsInfection prevalenceOpenSAFELY platformGeneral populationNational Statistics mortality dataNumber of comorbiditiesRisk prediction toolsAbsolute risk estimationStatistics mortality dataAbsolute risk estimatesCase-cohort sampleRisk prediction modelTarget populationElectronic health record systemsPrimary careCOVID-19 casesGeneral practiceEmergency careHealth record systemsLocal infection prevalenceNHS EnglandBasic demographicsPrevalenceMortality dataRisk estimates
2021
Association between warfarin and COVID-19-related outcomes compared with direct oral anticoagulants: population-based cohort study
Wong A, Tomlinson L, Brown J, Elson W, Walker A, Schultze A, Morton C, Evans D, Inglesby P, MacKenna B, Bhaskaran K, Rentsch C, Powell E, Williamson E, Croker R, Bacon S, Hulme W, Bates C, Curtis H, Mehrkar A, Cockburn J, McDonald H, Mathur R, Wing K, Forbes H, Eggo R, Evans S, Smeeth L, Goldacre B, Douglas I. Association between warfarin and COVID-19-related outcomes compared with direct oral anticoagulants: population-based cohort study. Journal Of Hematology & Oncology 2021, 14: 172. PMID: 34666811, PMCID: PMC8525065, DOI: 10.1186/s13045-021-01185-0.Peer-Reviewed Original ResearchConceptsDirect oral anticoagulantsPopulation-based cohort studyCOVID-19-related outcomesSevere COVID-19Oral anticoagulantsCohort studyHazard ratioLower riskNegative control outcome analysisSevere COVID-19 diseaseNon-valvular atrial fibrillationPrimary care dataCOVID-19 outcomesCOVID-19COVID-19 diseaseNegative control outcomesDOAC usersOpenSAFELY platformWarfarin usersHospital admissionAtrial fibrillationClinical evidenceCox regressionResultsA totalOutcome analysisRisks of covid-19 hospital admission and death for people with learning disability: population based cohort study using the OpenSAFELY platform
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, Morton CE, Nightingale E, Mehrkar A, Evans D, Inglesby P, MacKenna B, Cockburn J, Rentsch CT, Mathur R, Wong AYS, Eggo RM, Hulme W, Croker R, Parry J, Hester F, Harper S, Douglas IJ, Evans SJW, Smeeth L, Goldacre B, Kuper H. Risks of covid-19 hospital admission and death for people with learning disability: population based cohort study using the OpenSAFELY platform. The BMJ 2021, 374: n1592. PMID: 34261639, PMCID: PMC8278652, DOI: 10.1136/bmj.n1592.Peer-Reviewed Original ResearchConceptsCovid-19 related hospital admissionRelated hospital admissionsNon-COVID deathsHospital admissionOpenSAFELY platformDown syndromeCohort studyHazard ratioCerebral palsyDisability registersGeneral practiceCOVID-19COVID-19 hospital admissionsMain exposure groupsCOVID-19 vaccinationHospital admission dataPatient-level dataLow event ratesNon-COVID causesCOVID-19 testingTargeted preventive measuresWave 2Wave 1Electronic health recordsProfound learning disabilitiesFactors 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
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, McDonald HI, Cockburn J, Williamson EJ, Evans D, Curtis HJ, Hulme WJ, Parry J, Hester F, Harper S, Spiegelhalter D, Smeeth L, Goldacre B. 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 2021, 6: 100109. PMID: 33997835, PMCID: PMC8106239, DOI: 10.1016/j.lanepe.2021.100109.Peer-Reviewed Original ResearchNon-COVID deathsCOVID-19 deathsNational death registrationsPrimary care dataOpenSAFELY platformCOVID-19Health Research Oxford Biomedical Research CentrePopulation-based cohort analysisDeath registrationUK primary care dataCare dataPre-existing medical conditionsCOVID-19 mortality riskChronic liver diseaseHistory of cancerUK Medical Research CouncilHealth Data Research UKNational InstituteCOVID-19 mortalityMagnitude of associationMedical Research CouncilNon-white ethnic groupsBiomedical Research CentreCohort studyLiver diseaseEthnic 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
Mathur R, Rentsch C, Morton C, Hulme W, Schultze A, MacKenna B, Eggo R, Bhaskaran K, Wong A, Williamson E, Forbes H, Wing K, McDonald H, Bates C, Bacon S, Walker A, Evans D, Inglesby P, Mehrkar A, Curtis H, DeVito N, Croker R, Drysdale H, Cockburn J, Parry J, Hester F, Harper S, Douglas I, Tomlinson L, Evans S, Grieve R, Harrison D, Rowan K, Khunti K, Chaturvedi N, Smeeth L, Goldacre B, Collaborative O. 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. The Lancet 2021, 397: 1711-1724. PMID: 33939953, PMCID: PMC8087292, DOI: 10.1016/s0140-6736(21)00634-6.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionIntensive care unit admissionCOVID-19-related hospitalisationCare unit admissionObservational cohort studyCOVID-19 outcomesOutcomes of interestSouth Asian groupsOpenSAFELY platformICU admissionUnit admissionCohort studyEthnicity groupsMixed ethnicity groupCOVID-19-related hospital admissionsCOVID-19-related ICU admissionEthnic differencesAdverse COVID-19 outcomesMinority ethnic populationsSARS-CoV-2 testingMultivariable Cox regressionRisk of hospitalisationWhite groupPrimary care recordsPrimary care data
2020
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
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, Evans D, Forbes HJ, Curtis HJ, Hulme WJ, Parry J, Hester F, Harper S, Evans SJW, Smeeth L, Goldacre B. 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 2020, 8: e24-e32. PMID: 33316211, PMCID: PMC7773630, DOI: 10.1016/s2352-3018(20)30305-2.Peer-Reviewed Original ResearchConceptsCOVID-19 deathsNational death registrationsPrimary care dataHazard ratioHIV infectionOpenSAFELY platformBlack ethnicityHealth Research Oxford Biomedical Research CentreElectronic primary care dataPopulation-based cohort analysisDeath registrationUK primary care dataCare dataLarge-scale population-based studyRetrospective cohort studyPrimary care recordsUK Medical Research CouncilPopulation-based studyRisk of deathHealth Data Research UKNon-black individualsNational InstituteCOVID-19 mortalityMedical Research CouncilBiomedical Research CentreEffect 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
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, Evans D, Wing K, Inglesby P, Mathur R, Drysdale H, Wong AYS, McDonald HI, Cockburn J, Forbes H, Parry J, Hester F, Harper S, Smeeth L, Douglas IJ, Dixon WG, Evans SJW, Tomlinson L, Goldacre B. 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 2020, 3: e19-e27. PMID: 33349815, PMCID: PMC7745258, DOI: 10.1016/s2665-9913(20)30378-7.Peer-Reviewed Original ResearchCOVID-19 mortalitySystemic lupus erythematosusPopulation-based cohort studyLupus erythematosusRheumatoid arthritisOpenSAFELY platformCohort studyImmunosuppressive drugsRheumatological diseasesSevere acute respiratory syndrome coronavirus 2National primary care dataAcute respiratory syndrome coronavirus 2Respiratory syndrome coronavirus 2Effectiveness of hydroxychloroquinePre-exposure usePrimary care dataSyndrome coronavirus 2COVID-19 outbreakCumulative COVID-19 mortalityCOVID-19Medical Research CouncilNegative control outcomesCOVID-19 deathsHydroxychloroquine useCox regressionStudy protocol: Comparison of different risk prediction modelling approaches for COVID-19 related death using the OpenSAFELY platform
Williamson E, Tazare J, Bhaskaran K, Walker A, McDonald H, Tomlinson L, Bacon S, Bates C, Curtis H, Forbes H, Minassian C, Morton C, Nightingale E, Mehrkar A, Evans D, Nicholson B, Leon D, Inglesby P, MacKenna B, Cockburn J, Davies N, Hulme W, Morley J, Douglas I, Rentsch C, Mathur R, Wong A, Schultze A, Croker R, Parry J, Hester F, Harper S, Perera R, Grieve R, Harrison D, Steyerberg E, Eggo R, Diaz-Ordaz K, Keogh R, Evans S, Smeeth L, Goldacre B. Study protocol: Comparison of different risk prediction modelling approaches for COVID-19 related death using the OpenSAFELY platform. Wellcome Open Research 2020, 5: 243. DOI: 10.12688/wellcomeopenres.16353.1.Peer-Reviewed Original ResearchRisk prediction modelPrimary care electronic health record dataCOVID-19Chronic disease settingsElectronic health record dataHealth record dataPrevalence of infectionCOVID-19 deathsWorld Health OrganizationOpenSAFELY platformAdult patientsPoor outcomeInfection burdenDisease settingsDeath dataInfectious diseasesHealth OrganizationInfection prevalenceRecord dataCohort approachPopulation of interestPrevalenceTime-varying measuresDeathOutcomesRisk 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
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, Evans D, Inglesby P, Cockburn J, McDonald HI, Tomlinson L, Mathur R, Wing K, Wong AYS, Forbes H, Parry J, Hester F, Harper S, Evans SJW, Quint J, Smeeth L, Douglas IJ, Goldacre B, Collaborative O. 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 2020, 8: 1106-1120. PMID: 32979987, PMCID: PMC7515601, DOI: 10.1016/s2213-2600(20)30415-x.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, InhalationAdolescentAdrenal Cortex HormonesAdultAgedAged, 80 and overAsthmaBetacoronavirusCohort StudiesCoronavirus InfectionsCOVID-19Electronic Health RecordsEnglandFemaleHumansMaleMiddle AgedMuscarinic AntagonistsPandemicsPneumonia, ViralProportional Hazards ModelsPulmonary Disease, Chronic ObstructiveRegression AnalysisSARS-CoV-2Young AdultConceptsChronic obstructive pulmonary diseaseCOVID-19-related deathsIndex dateObstructive pulmonary diseaseElectronic health recordsOpenSAFELY platformRespiratory medicationsCOPD cohortHazard ratioPulmonary diseaseAsthma cohortPrimary care electronic health recordsSevere acute respiratory syndrome coronavirus 2Acute respiratory syndrome coronavirus 2Respiratory syndrome coronavirus 2High-dose ICSHigh-dose ICSsRegular ICS useΒ-agonistsObservational cohort studyUK Medical Research CouncilRisk of deathCox regression modelAcute respiratory diseaseSyndrome coronavirus 2