Wow! I discovered the JAMA article about dementia, hospitalization and the elderly and mentioned it here on the blog several days ago, on March 4, 2010 — before the Vital Signs blog at the NY Times discussed it on March 8th. How exciting to once-in-a-while be ahead of the Times (which by the way I revere)!
However, the Times piece includes far more detail than I reported. If you want to learn more the link will be useful since most people will need to go to a library to look at the JAMA article. I am also adding the Vital Signs link, Aging: Cognitive Decline and Hospitalization, to my dementia resource list.