Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY
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, Mehrkar A, Morley J, Fisher L, Bacon SCJ, Evans D, Inglesby P, Hickman G, Davy S, Ward T, Croker R, Eggo RM, Wong AYS, Mathur R, Wing K, Forbes H, Grint DJ, Douglas IJ, Evans SJW, Smeeth L, Bates C, Cockburn J, Parry J, Hester F, Harper S, Sterne JAC, Hernán MA, Goldacre B. Comparative effectiveness of ChAdOx1 versus BNT162b2 covid-19 vaccines in health and social care workers in England: cohort study using OpenSAFELY. The BMJ 2022, 378: e068946. PMID: 35858680, PMCID: PMC9295078, DOI: 10.1136/bmj-2021-068946.Peer-Reviewed Original ResearchConceptsCovid-19 related hospital admissionCOVID-19 vaccineCOVID-19 diseaseRelated hospital admissionsCumulative incidenceHospital admissionSocial care workersCare workersCohort studyHealthcare workersPositive SARS-CoV-2 testBNT162b2 COVID-19 vaccineChAdOx1 COVID-19 vaccineSARS-CoV-2 positive testSARS-CoV-2 infectionSARS-CoV-2 alpha variantSARS-CoV-2 testCOVID-19First vaccine doseComparative effectiveness trialFirst dose vaccinationBNT162b2 mRNAHospital attendanceVaccine doseVaccine typesDescribing the population experiencing COVID-19 vaccine breakthrough following second vaccination in England: a cohort study from OpenSAFELY
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, Hopcroft L, Morton C, Croker R, Morley J, Mehrkar A, Bacon S, Evans D, Inglesby P, Hickman G, Ward T, Davy S, Mathur R, Tazare J, Eggo R, Wing K, Wong A, Forbes H, Bates C, Cockburn J, Parry J, Hester F, Harper S, Douglas I, Evans S, Smeeth L, Goldacre B. Describing the population experiencing COVID-19 vaccine breakthrough following second vaccination in England: a cohort study from OpenSAFELY. BMC Medicine 2022, 20: 243. PMID: 35791013, PMCID: PMC9255436, DOI: 10.1186/s12916-022-02422-0.Peer-Reviewed Original ResearchConceptsPositive SARS-CoV-2 testSARS-CoV-2 testBreakthrough COVID-19Vaccine breakthroughBreakthrough casesCohort studyIncidence rateCOVID-19COVID-19-related hospital admissionsCOVID-19-related deathsVaccine breakthrough casesRetrospective cohort studyChronic kidney diseaseCritical care admissionSARS-CoV-2 variantsDeath registry dataCorresponding incidence ratesRoutine clinical dataHigh rateMedian followVaccine waningCare admissionHospital admissionSecond vaccinationSecondary care