From: Translation and validation of the Korean version of the clinical frailty scale in older patients
 | 1 Very fit | 2 Well | 3 Managing well | 4 Vulnerable | 5 Mildly frail | 6 Moderately frail | 7 Severely frail | 8 Very severely frail | 9 Terminally ill | Ra | Rsa |
---|---|---|---|---|---|---|---|---|---|---|---|
K-FRAIL | Â | Â | Â | Â | Â | Â | Â | Â | Â | 0.8053* | 0.8048* |
 Mean (SD) | 0.3 (0.5) | 0.7 (0.8) | 0.8 (1.3) | 1.3 (0.9) | 3.3 (0.9) | 3.8 (0.4) | 3.5 (1.0) | 3.7 (0.5) | 2.9 (1.2) |  |  |
 Median (IQR) | 0 (0–1) | 0.5 (0–1) | 0 (0–1) | 1 (1–2) | 3.5 (3–4) | 4 (4–4) | 4 (3–4) | 4 (3–4) | 3 (2–3.5) |  |  |
KG-7 |  |  |  |  |  |  |  |  |  | −0.8846* | −0.8860* |
 Mean (SD) | 6.7 (0.7) | 5.4 (1.2) | 5.5 (1.0) | 4.3 (1.1) | 3.4 (0.7) | 1.8 (1.0) | 1.0 (1.2) | 0.8 (1.0) | 3.9 (2.0) |  |  |
 Median (IQR) | 7 (7–7) | 5 (5–6.5) | 6 (5–6) | 4 (3–5) | 3.5 (3–4) | 1.5 (1–2) | 1 (0–1) | 1 (0–1) | 3.5 (2–5.5) |  |  |
Korean frailty index | Â | Â | Â | Â | Â | Â | Â | Â | Â | 0.7742* | 0.7883* |
 Mean (SD) | 1.2 (1.3) | 3.3 (1.4) | 2.2 (1.4) | 4.3 (1.4) | 5.8 (1.1) | 5.2 (0.9) | 6.2 (1.2) | 6.8 (1.1) | 4.9 (1.5) |  |  |
 Median (IQR) | 1 (0–2) | 3 (2–5) | 3 (1–3) | 4 (3–5.5) | 6 (5.5–6) | 5.5 (4–6) | 6.5 (5–7) | 7 (6–8) | 5 (3.5–6) |  |  |
ECOG PS | Â | Â | Â | Â | Â | Â | Â | Â | 0.9190* | 0.9184* | |
 0 | 8 (80.0) | 3 (25.0) | 2 (18.2) | 1 (6.3) | 0 | 0 | 0 | 0 | 1 (12.5) |  |  |
 1 | 2 (20.0) | 9 (75.0) | 9 (81.8) | 13 (81.3) | 1 (8.3) | 1 (8.3) | 0 | 0 | 2 (25.0) |  |  |
 2 | 0 | 0 | 0 | 2 (12.5) | 8 (66.7) | 8 (66.8) | 2 (20.0) | 0 | 4 (50.0) |  |  |
 3 | 0 | 0 | 0 | 0 | 3 (25.0) | 8 (80.0) | 8 (80.0) | 3 (30.0) | 1 (12.5) |  |  |
 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 (70.0) | 0 |  |  |