Factors influencing estimated effectiveness of COVID-19 vaccines in non-randomised studies
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DOI: 10.1136/bmjebm-2021-111901
Abstract: Non-randomised studies assessing COVID-19 vaccine effectiveness need to consider multiple factors that may generate spurious estimates due to bias or genuinely modify effectiveness. These include pre-existing immunity, vaccination misclassification, exposure differences, testing, disease risk factor… read more here.
Keywords: factors influencing; vaccine effectiveness; influencing estimated; randomised studies ... See more keywords