Frailty Index, pneumonia severity and functional status trajectory after pneumonia hospitalisation
| Trajectory group (N, %) | Total (n=201) | ||||
| Excellent (n=28) | Good (n=52) | Poor (n=58) | Very poor (n=63) | ||
| Frailty category (Correlation: 0.90; p<0.01) | |||||
| Robust (<0.15) | 28 (54.9) | 17 (33.3) | 6 (11.8) | 0 | 51 (25.3) |
| Pre-frail (0.15–0.24) | 0 | 32 (74.4) | 11 (25.6) | 0 | 43 (21.4) |
| Mild-to-moderately frail (0.25–0.44) | 0 | 3 (7.5) | 34 (85.0) | 3 (7.5) | 40 (19.9) |
| Severely frail (≥0.45) | 0 | 0 | 7 (10.4) | 60 (89.6) | 67 (33.3) |
| CURB-65 category (Correlation: 0.45; p<0.01) | |||||
| Low risk (0–1) | 17 (32.0) | 17 (32.0) | 15 (28.3) | 4 (7.5) | 53 (26.4) |
| Intermediate risk (2) | 8 (13.8) | 20 (34.5) | 14 (24.1) | 16 (27.6) | 58 (28.9) |
| High risk (3-5) | 3 (3.3) | 15 (16.7) | 29 (32.2) | 43 (47.8) | 90 (44.8) |
| PSI category (Correlation: 0.39; p<0.01) | |||||
| PSI class I (≤70) | 3 (42.9) | 2 (28.6) | 1 (14.3) | 1 (14.3) | 7 (4.0) |
| PSI class II (71–90) | 4 (22.2) | 10 (55.6) | 2 (11.1) | 2 (11.1) | 18 (10.4) |
| PSI class III (91–130) | 11 (16.9) | 18 (27.7) | 19 (29.2) | 17 (26.2) | 65 (37.6) |
| PSI class IV (>130) | 3 (4.4) | 13 (19.4) | 29 (43.3) | 38 (56.7) | 67 (38.7) |
PSI, Pneumonia Severity Index.