From: Risk factors for dementia after critical illness in elderly medicare beneficiaries
 | ICU Cohort (n= 25,368) |
---|---|
 | Number (%) |
Index Hospitalization | Â |
   Age, years: mean ± SD | 76.6 ± 6.8 |
   Female | 13,275 (52.3) |
   Race |  |
non-Hispanic, white | 22,602 (89.1) |
non-Hispanic, black | 1,830 (7.2) |
Hispanic | 407 (1.6) |
Other | 529 (2.1) |
   ICU length of stay, days: median (IQR) | 2 (1 to 5) |
   Hospital length of stay, days: median (IQR) | 6 (3 to 10) |
   Mechanically Ventilated |  |
None | 23,067 (90.9) |
Mechanically Ventilated | 2,301 (9.1) |
Past Hospitalization History (prior year) | Â |
   Any previous ICU admission | 624 (2.5) |
   Any previous hospitalization | 4,590 (18.1) |
   Number of previous hospitalizations |  |
0 | 20,778 (81.9) |
1 | 3,035 (12.0) |
2+ | 1,555 (6.1) |
Prior Diagnoses (prior year) a | Â |
   None | 8,450 (33.3) |
   Any potential risk factors for dementia | 16,918 (66.7) |
Follow-Up | Â |
   Total follow-up time, years | 63543 |
   Average follow-up time, years: mean ± SD | 2.5 ± 0.9 |
   Diagnosis of Dementia | 4,519 (17.8) |
   Mortality |  |
1 year | 3,461 (13.6) |
2 year | 5,836 (23.0) |
3 year | 7,746 (30.5) |