Resolving the Pneumococcal Vaccine Controversy: Are There Alternatives to Randomized Clinical Trials?
Clemens J, Shapiro E. Resolving the Pneumococcal Vaccine Controversy: Are There Alternatives to Randomized Clinical Trials? Clinical Infectious Diseases 1984, 6: 589-600. PMID: 6390636, DOI: 10.1093/clinids/6.5.589.Peer-Reviewed Original ResearchA controlled evaluation of the protective efficacy of pneumococcal vaccine for patients at high risk of serious pneumococcal infections.
Shapiro E, Clemens J. A controlled evaluation of the protective efficacy of pneumococcal vaccine for patients at high risk of serious pneumococcal infections. Annals Of Internal Medicine 1984, 101: 325-30. PMID: 6380367, DOI: 10.7326/0003-4819-101-3-325.Peer-Reviewed Original ResearchConceptsIncreased risk of pneumococcal infectionRisk of pneumococcal infectionEfficacy of pneumococcal vaccineSystemic pneumococcal infectionPneumococcal infectionPneumococcal vaccineVaccine protective efficacyIncreased riskProtective efficacyCase-control studyOdds ratioVaccine efficacyHigh riskMatched controlsPatientsInfectionConfounding variablesEfficacyVaccine