Table 1.
Clinical characteristics of patients (n=334)
| Demographics | N (%) | Missing, n (%) |
|---|---|---|
| Age, mean (sd) | 82.8 (7.2) | 0 |
| Women, n (%) | 185 (55.4) | 0 |
| Weight, mean (sd) | 70.8 (17.5) | 1 (0.3) |
| Height, mean (sd) | 164.5 (13.5) | 0 |
| BMI, mean (sd) | 26.6 (8.7) | 1 (0.3) |
| Length of stay, median (IQR) | 15 (12, 15) | 0 |
| Summary of admission data included in the SFNR-frailty index | ||
| Total functional score, median (IQR) | 55 (40, 75) | 1 |
| 5-item geriatric depression scale ≥2 points, n (%) | 136 (40.7) | 4 (1.2) |
| Ultrabrief delirium screening score: | ||
| -Question 1 (day of the week) incorrect | 67 (20.1) | 0 |
| -Question 2 (months backwards) incorrect | 135 (40.4) | 0 |
| Hearing impairment, n (%) | 74 (22.2) | 0 |
| Obesity (BMI ≥30kg/m2) | 67 (20.1) | 1 (0.3) |
| Pain, n (%) | 46 (13.8) | 46 (13.8) |
| Falls prior to admission | 203 (60.8) | 1 (0.3) |
| Able to climb one flight of stairs prior to admission | 65 (19.5) | 7 (2.1) |
| Walking distance <200m prior to admission | 51 (15.3) | 2 (0.6) |
| Walking aid prior to admission | 183 (54.8) | 0 |
| Timed up and go test, mean (sd) (sec) | 25.3 (7.5) | 0 |
| Multimorbidity, CIRS deficit score, median (IQR) | 10 (8-11) | 0 |
| Decreased creatinine clearance | 80 (24.0) | 11 (3.3) |
| Hypalbuminemia | 153 (45.8) | 35 (10.5) |
| Abnormal white blood cell count | 29 (8.7) | 7 (2.1) |
| Assessments included in the clinical frailty phenotype | ||
| Shrinking | 198 (59.8) | 3 (0.9) |
| Fatigue | 127 (38.5) | 4 (1.2) |
| Slowness | 228 (70.4)b) | 10 (3.0) |
| Weakness | 207 (63.1)a) | 6 (1.8) |
| Low activity | 67 (20.1) | 1 (0.3) |
| Frailty measures | ||
| Clinical frailty phenotype | 14 (4.2) | |
| Score, median (IQR) | 2 (2,3) | |
| Frail, n (%) | 170 (53.1) | |
| SFNR-frailty index | 0 | |
| Score, median (IQR) | 0.46 (0.33, 0.57) | |
| Frail, n (%) | 220 (65.9) | |
| Clinical outcomes | ||
| Non-home discharge | 85 (25.5) | 0 |
| Functional decline, n (%) | 67 (20.1) | 0 |
Abbreviations: sd, standard deviation; BMI, body mass index; IQR, interquartile range. a) n=51 were unable (too weak due to their underlying health condition) to perform grip strength measurement and were coded as “weak”; b) n=172 were unable (too weak to mobilize due to their underlying health condition) to perform gait speed test and were coded as “slow”