Study finds Omicron hospital risk 10 times higher in unvaccinated vs. boosted
After the emergence of the Omicron variant, the rate of COVID-19 hospitalizations in the United States was 10.5 times higher in unvaccinated adults and 2.5 times higher in those who were vaccinated but received no booster than in booster recipients, according to a new study.
...
In the first study, a team led by US Centers for Disease Control and Prevention (CDC) researchers analyzed data on 192,509 hospitalizations from more than 250 hospitals in 13 states participating in the COVID-19–Associated Hospitalization Surveillance Network from Jan 1, 2021, to Apr 30, 2022. The research was published [Sept. 8] in JAMA Internal Medicine.
Monthly COVID-19 hospitalization rates were 3.5 to 17.7 times higher in unvaccinated patients than in their vaccinated counterparts, regardless of whether they had received a booster. Hospitalization rates were 10.5 times higher in the unvaccinated and 2.5 times higher in vaccinated patients with no booster than in booster recipients.
(more)
https://www.cidrap.umn.edu/news-perspective/2022/09/study-finds-omicron-hospital-risk-10-times-higher-unvaccinated
Also, source study:
COVID-19-Associated Hospitalizations Among Vaccinated and Unvaccinated Adults 18 Years or Older in 13 US States, January 2021 to April 2022
https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2796235
"Findings In this cross-sectional study of US adults hospitalized with COVID-19 during January 2022 to April 2022 (during Omicron variant predominance), COVID-19-associated hospitalization rates were 10.5 times higher in unvaccinated persons and 2.5 times higher in vaccinated persons with no booster dose, respectively, compared with those who had received a booster dose. Compared with unvaccinated hospitalized persons, vaccinated hospitalized persons were more likely to be older and have more underlying medical conditions.
Meaning The study results suggest that COVID-19 vaccines are strongly associated with prevention of serious COVID-19 illness."