Effectiveness of HPV vaccine by age at vaccination and number of doses: protocol for a population-based matched case–control study
Oliveira CR, Ortiz AM, Sheth SS, Shapiro ED, Niccolai LM. Effectiveness of HPV vaccine by age at vaccination and number of doses: protocol for a population-based matched case–control study. BMJ Open 2021, 11: e043093. PMID: 33875441, PMCID: PMC8057558, DOI: 10.1136/bmjopen-2020-043093.Peer-Reviewed Case Reports and Technical NotesConceptsHigh-grade cervical lesionsPre-licensure clinical trialsHPV vaccineCase-control studyNumber of dosesClinical trialsFirst human papillomavirus (HPV) vaccineMultivariate conditional logistic regressionNormal Pap test resultsReal-world clinical settingHuman papillomavirus vaccinePap test resultsHPV types 16Time of immunisationReal-world effectivenessConditional logistic regressionInstitutional review boardDate of testingPapillomavirus vaccineCervical lesionsPotential confoundersVaccine programMedical recordsPersistent infectionType 16