Silver Book Fact
Thirty-day mortality rates after stroke increase with age—from 9% in Medicare beneficiaries ages 65 to 74, to 13.1% in beneficiaries ages 74 to 84, to 23% in beneficiaries 85 and older.
Casper M, Nwaise I, Croft J, Nilasena D. Atlas of Stroke Hospitalizations Among Medicare Beneficiaries. Atlanta: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention; 2008. https://www.cdc.gov/dhdsp/pubs/atlases.htm