Moderna and Pfizer COVID-19 Vaccines: Ronald B Brown on Absolute versus Relative Risk Reduction

Ronald B Brown has criticized the initial clinical trials (three months long?) of Pfizer and Moderna vaccines for not reporting the absolute risk reduction of COVID-19 infection by the vaccines. What’s been reported is the relative risk reduction, aka efficacy or effectiveness. The absolute risk reductions were 0.7% (Pfizer) and 1.1% (Moderna), compared to relative risk reductions of 95% or so. Brown says the much higher figures for effectiveness (relative risk reduction) tend to convince the general public and many healthcare providers that the vaccines are much more beneficial than in reality. Ignorance of the “absolute versus relative risk reduction” issue is how many physicians get tricked into prescribing drugs that provide very little, if any, benefit to the average individual patient.

See Brown’s article in Medicina.

Steve Parker, M.D.

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