The following is an excerpt from Medpage Today.
Incidence of cerebral venous sinus thrombosis (CVST) remained a rare occurrence after the Johnson & Johnson COVID-19 adenovirus vector vaccine began being administered, researchers said.
The overall age- and sex-adjusted incidence of CVST was 2.34 per 100,000 person-years in Olmsted County, Minnesota, in 2001 to 2015, compared with a peak incidence of 8.65 per 100,000 person-years at 15 days postvaccination per the CDC Vaccine Adverse Event Reporting System (VAERS) database, according to a team led by Aneel Ashrani, MD, MS, of the Mayo Clinic in Rochester, Minnesota.
Those at highest risk of CVST after receiving the Johnson & Johnson product in early 2021 were women ages 30 to 39 (26.52 per 100,000 person-years) and women ages 40 to 49 (29.48 per 100,000 person-years) -- with women in general having a 5.1-fold higher risk after vaccination than they did before the COVID pandemic (13.01 vs 2.53 per 100,000 person-years, P<0.001).
The study authors maintained that the "absolute CVST risk was still low" for these women. "The reason that women had a higher incidence of postvaccination CVST is unclear; concomitant CVST risk factors or autoantibody production might have been involved," they noted in JAMA Internal Medicine. (Continued...)
- Covid-19 Natural Immunity: The Definitive Summary
- Covid-19 Vaccine: 80 of the Most Common Adverse Events
- Covid-19 Vaccine Concerns Summary
- Covid-19 Vaccine Analysis: Common Adverse Events
- Covid-19 Origins: Separating Rumor from Fact (WATCH)
- Report a Possible Vaccine Adverse Event