Real-world effectiveness of nirmatrelvir/ritonavir against COVID-19 hospitalisations and severe COVID-19 in community-dwelling elderly Singaporeans during Omicron BA.2, BA.4/5 and XBB transmission
Description
CONCLUSION: Outpatient usage of nirmatrelvir/ritonavir was independently associated with reduced odds of hospitalisation amongst boosted older community-dwelling Singaporeans during successive waves of Omicron transmission, including Omicron XBB
