by: Dr Mary Gillis, D.Ed.
Posted: / Update:
INDIANAPOLIS (WISH) – Evidence is mounting that should encourage those who are still not vaccinated to get vaccinated, according to the findings of a report published in the New England Journal of Medicine.
The study combined data from tens of thousands of patients from nearly 200 hospitals across the country.
The goal was to measure the effectiveness of the two-dose Moderna and Pfizer vaccines and the single-dose Johnson & Johnson vaccine, and how they successfully prevented COVID-19 emergency room visits and hospitalizations in people over 50. years and older.
Dr Shaun Grannis, vice president of data and analytics at the Regenstrief Institute in Indianapolis, played a central role in carrying out the study.
“What we found was that Moderna and Pfizer were statistically identical,” Grannis told News 8. “Although Moderna’s point estimates are slightly higher statistically, they are similar. Johnson & Johnson, we have less data, so our estimates for that were a bit more uncertain, but the point estimates were in the 70% range.
Pfizer and Moderna were 91% effective in preventing emergency room visits, while the Johnson & Johnson vaccine was 73%. In terms of hospitalizations, Moderna and Pfizer were 89% effective in preventing them, Johnson & Johnson 68%.
While the absolute numbers between the Moderna vaccine and Pfizer may seem like a big difference from the Johnson & Johnson, Grannis says all three vaccines offer significant protection.