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 recordsImpact of COVID-19 on recorded blood pressure screening and hypertension management in England: an analysis of monthly changes in the quality and outcomes framework indicators in OpenSAFELY
Wiedemann M, Speed V, Cunningham C, Higgins R, Curtis H, Andrews C, Fisher L, Hopcroft L, Rentsch C, Mahalingasivam V, Tomlinson L, Morton C, Samuel M, Green A, Wood C, Brown A, Massey J, Walters C, Smith R, Inglesby P, Evans D, Maude S, Dillingham I, Walker A, Morley J, Mehrkar A, Bacon S, Bates C, Cockburn J, Parry J, Hester F, McManus R, Goldacre B, MacKenna B. Impact of COVID-19 on recorded blood pressure screening and hypertension management in England: an analysis of monthly changes in the quality and outcomes framework indicators in OpenSAFELY. Open Heart 2024, 11: e002732. PMID: 39214534, DOI: 10.1136/openhrt-2024-002732.Peer-Reviewed Original ResearchConceptsBlood pressure screeningPressure screeningPercentage of patientsHypertension prevalenceHypertension managementPopulation-based cohort studyRecord of hypertensionCardiovascular disease managementClinical subgroupsQOF indicatorsScreening ratesPrimary careGeneral practiceHome statusNHS patientsOlder peopleBlood pressure measurementsCare schemesCohort studyDisease managementImpact of COVID-19COVID-19Framework indicatorsNational qualityNHS
2023
Sex-specific risks for cardiovascular disease across the glycaemic spectrum: a population-based cohort study using the UK Biobank
Rentsch C, Garfield V, Mathur R, Eastwood S, Smeeth L, Chaturvedi N, Bhaskaran K. Sex-specific risks for cardiovascular disease across the glycaemic spectrum: a population-based cohort study using the UK Biobank. The Lancet Regional Health - Europe 2023, 32: 100693. PMID: 37671124, PMCID: PMC10477037, DOI: 10.1016/j.lanepe.2023.100693.Peer-Reviewed Original ResearchCoronary artery diseaseDeep vein thrombosisSex-specific riskCardiovascular diseaseUndiagnosed diabetesGlycaemic spectrumPulmonary embolismExcess riskPopulation-based cohort studyRisk of CVDAge-adjusted HRIncident cardiovascular diseaseBritish Heart FoundationSex-specific associationsUK BiobankWeight reduction strategiesStatin medicationStatin useClinical characteristicsCohort studyComposite outcomeNormal HbA1cVein thrombosisArtery diseaseHeart failure
2022
Association between oral anticoagulants and COVID-19 related outcomes: a population-based cohort study
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, Bacon S, Hulme W, Bates C, Curtis HJ, Mehrkar A, Cockburn J, McDonald HI, Mathur R, Wing K, Forbes H, Eggo RM, Evans SJ, Smeeth L, Goldacre B, Douglas IJ, . Association between oral anticoagulants and COVID-19 related outcomes: a population-based cohort study. British Journal Of General Practice 2022, 72: bjgp.2021.0689. PMID: 35440465, PMCID: PMC9037187, DOI: 10.3399/bjgp.2021.0689.Peer-Reviewed Original ResearchConceptsCOVID-19 outcomesPopulation-based cohort studySevere COVID-19 outcomesSARS-CoV-2Oral anticoagulantsLower riskVASc scoreCohort studyHazard ratioAtrial fibrillationCOVID-19 related outcomesCOVID-19-related deathsPrescribed oral anticoagulantsPrimary care dataBaseline stroke riskOAC useCurrent useStroke riskHospital admissionThrombotic eventsCox regressionOAC usersReduced infection riskGeneral practiceDeath records
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 analysisClinical coding of long COVID in English primary care: a federated analysis of 58 million patient records in situ using OpenSAFELY
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, Cockburn J, Davy S, Bhaskaran K, Schultze A, Williamson EJ, Hulme WJ, McDonald HI, Mathur R, Eggo RM, Wing K, Wong AY, Forbes H, Tazare J, Parry J, Hester F, Harper S, O’Hanlon S, Eavis A, Jarvis R, Avramov D, Griffiths P, Fowles A, Parkes N, Douglas IJ, Evans SJ, Smeeth L, Goldacre B, . Clinical coding of long COVID in English primary care: a federated analysis of 58 million patient records in situ using OpenSAFELY. British Journal Of General Practice 2021, 71: bjgp.2021.0301. PMID: 34340970, PMCID: PMC8340730, DOI: 10.3399/bjgp.2021.0301.Peer-Reviewed Original ResearchConceptsLong COVIDEnglish primary carePrimary careDiagnostic codesPopulation-based cohort studyAcute COVID-19Different diagnostic thresholdsProportion of peoplePlanning of servicesPersistent symptomsCohort studyGeneral practiceClinicians' understandingDiagnostic thresholdNHS EnglandPatient recordsClinical codesClinical codingCareCOVID-19East of EnglandPatientsDemographic factorsCOVIDWeeksSocial determinants of pertussis and influenza vaccine uptake in pregnancy: a national cohort study in England using electronic health records
Walker JL, Rentsch CT, McDonald HI, Bak J, Minassian C, Amirthalingam G, Edelstein M, Thomas S. Social determinants of pertussis and influenza vaccine uptake in pregnancy: a national cohort study in England using electronic health records. BMJ Open 2021, 11: e046545. PMID: 34155074, PMCID: PMC8217954, DOI: 10.1136/bmjopen-2020-046545.Peer-Reviewed Original ResearchConceptsPertussis vaccine uptakeVaccine uptakeNon-white ethnicityPregnant womenEligible pregnanciesSocial determinantsCohort studyNationwide population-based cohort studyClinical Practice Research DatalinkPopulation-based cohort studyGreater deprivationCare dataLow vaccine uptakeInfluenza vaccine uptakeSecondary care dataNational cohort studyPrimary care dataVaccine-preventable diseasesLow uptakeVaccine promotion strategiesElectronic health recordsInfluenza vaccinationMaternal ageSuccessive pregnanciesVaccination promotion
2020
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
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 regressionRisk of 16 cancers across the full glycemic spectrum: a population-based cohort study using the UK Biobank
Rentsch CT, Farmer RE, Eastwood SV, Mathur R, Garfield V, Farmaki AE, Bhaskaran K, Chaturvedi N, Smeeth L. Risk of 16 cancers across the full glycemic spectrum: a population-based cohort study using the UK Biobank. BMJ Open Diabetes Research & Care 2020, 8: e001600. PMID: 32859587, PMCID: PMC7454242, DOI: 10.1136/bmjdrc-2020-001600.Peer-Reviewed Original ResearchConceptsCancer riskGlycemic spectrumIncident cancerPancreatic cancerBreast cancerPopulation-based cohort studyAge-standardized incidence ratesCox proportional hazards modelPostmenopausal breast cancerPremenopausal breast cancerHistory of cancerIndependent positive associationProportional hazards modelUK cancer registriesUK BiobankEdition diagnostic codesBaseline HbA1cDiabetes medicationsMultivariable adjustmentCohort studyCancer RegistryRisk factorsDiagnostic codesIncidence rateInverse association