Old patients hospitalized in Acute Geriatric Units are characterize by advanced age
(average 85 years), frailty, high number of comorbidities, cognitive impairment and loss
of functional autonomy.These particular state leads to multiple decompensations and the
reason for initial hospitalization is often only the "tip of the iceberg". Although,
intra-hospital mortality in geriatric population (out of COVID) is low (6%) the long-term
prognosis is often worse (30 to 60% of loss of autonomy and 30% of one-year mortality
among hospital survivors).

For geriatric patients with COVID19, intra-hospital mortality is higher than in younger
Covid patients (1), but also higher than in geriatric patients outside the Covid context
(30 vs 6% (2, 3)). This excess mortality is all the more surprising as these patients
seem to have fewer comorbidities than those usually hospitalized in acute geriatric
units.

Our hypothesis is that geriatric patients surviving hospitalization for COVID-19 have a
worse vital and functional prognosis at 12 months than geriatric patients surviving
hospitalization for another medical reason.