Table 1.
Characteristics of Participants With an ICU Admission
| Characteristic | All Participants (n = 291) |
Pre-ICU Functional Trajectory | ||
|---|---|---|---|---|
| Minimal Disability (n = 86) |
Mild to Moderate Disability (n = 128) |
Severe Disability (n = 77) |
||
| At the Time of ICU Admission | ||||
| Age, mean (SD), y | 83.7 (5.5) | 80.6 (4.7) | 83.9 (5.3) | 86.9 (4.7) |
| Female sex, No. (%) | 169 (58.1) | 48 (55.8) | 69 (53.9) | 52 (67.5) |
| Non-Hispanic white race, No. (%) | 258 (88.7) | 79 (91.9) | 116 (90.6) | 63 (81.8) |
| Did not complete high school, No. (%) | 101 (34.7) | 25 (29.1) | 45 (35.2) | 31 (40.3) |
| Nursing home resident, No. (%) | 45 (15.5) | 0 | 11 (8.6) | 34 (44.2) |
| Before ICU Admissiona | ||||
| Lives alone, No. (%) | 107 (36.8) | 43 (50.0) | 39 (30.5) | 25 (32.5) |
| No. of chronic conditions, mean (SD)b | 2.4 (1.3) | 1.9 (1.1) | 2.5 (1.3) | 2.8 (1.4) |
| Body mass index, mean (SD)c | 25.9 (5.7) | 26.3 (5.4) | 25.6 (5.5) | 25.9 (6.3) |
| Cognitive impairment, No. (%)d | 56 (19.2) | 7 (8.1) | 24 (18.8) | 25 (32.5) |
| Depression, No. (%)e | 53 (18.2) | 11 (12.8) | 18 (14.1) | 24 (31.2) |
| Slow gait speed, No. (%)f | 164 (56.4) | 14 (16.3) | 78 (60.9) | 72 (93.5) |
| No. of Disabilities at the Start of the Pre-ICU Functional Trajectory, Mean (SD) | ||||
| All activities, range 0–13 | 3.8 (3.7) | 0.6 (1.0) | 3.1 (2.2) | 8.4 (3.2) |
| Basic activities, range 0–4 | 0.5 (1.1) | 0.0 (0.2) | 0.1 (0.6) | 1.5 (1.0) |
| Instrumental activities, range 0–5 | 1.8 (1.8) | 0.3 (0.6) | 1.6 (1.3) | 1.5 (4.0) |
| Mobility activities, range 0–4 | 1.5 (1.4) | 0.3 (0.7) | 1.4 (1.1) | 3.1 (1.1) |
Abbreviation: ICU, intensive care unit.
a
Ascertained during the last comprehensive assessment before ICU admission.
b
Of a possible 9 (hypertension, myocardial infarction, congestive heart failure, stroke, nonskin cancers, diabetes mellitus, fractures, arthritis, and chronic lung disease).
c
Calculated as weight in kilograms divided by height in meters squared.
d
Defined as a score of less than 24 on the Mini-Mental State Examination.
e
Defined as a score of 20 or higher on the Center for Epidemiological Studies Depression Scale.
f
Defined as requiring more than 10 seconds to walk back and forth over a 3-meter course as quickly as possible.