Table 3.
Unadjusted and adjusted hazard ratios (HR) and their 95% confidence intervals (CI) (in parentheses) of frailty indexes, self-reported ability to walk 400 m and self-rated health for institutionalization during the 10-year follow-up
| Non-institutionalized n (%) | Institutionalized n (%) | Deceased n (%) | Unadjusted HR (95% CI) | P-value | Adjusted R (95% CI)a | P-value | |
|---|---|---|---|---|---|---|---|
| FRAIL scale (n = 1087) | |||||||
| Robust (n = 710) | 496 (70) | 74 (10) | 140 (20) | 1 | 1 | ||
| Pre-frail (n = 350) | 158 (45) | 75 (21) | 117 (33) | 2.25 (1.63–3.10) | < .001 | 1.48 (1.04–2.10) | .030 |
| Frail (n = 27) | 1 (4) | 8 (30) | 18 (67) | 3.32 (1.57–7.00) | .002 | 1.33 (0.57–3.11) | .505 |
| Frailty index (n = 1061) | |||||||
| Robust (n = 197) | 164 (83) | 8 (4) | 25 (13) | 1 | 1 | ||
| Pre-frail (n = 596) | 402 (67) | 64 (11) | 130 (22) | 2.74 (1.32–5.69) | .007 | 2.32 (1.12–4.79) | .023 |
| Frail (n = 268) | 76 (28) | 79 (29) | 113 (42) | 8.82 (4.28–18.20) | < .001 | 4.50 (2.11–9.63) | < .001 |
| PRISMA-7 (n = 1055) | |||||||
| Robust (n = 860) | 613 (71) | 85 (10) | 162 (19) | 1 | |||
| Frail (n = 195) | 42 (22) | 63 (32) | 90 (46) | 3.95 (2.85–5.49) | < .001 | ||
| Self-reported ability to walk 400 m (n = 1101) | |||||||
| Yes (n = 1011) | 653 (65) | 123 (12) | 235 (23) | 1 | 1 | ||
| No (n = 90) | 9 (10) | 39 (43) | 42 (47) | 4.82 (3.29–7.05) | < .001 | 2.06 (1.25–3.41) | .005 |
| Self-rated health (n = 1105) | |||||||
| Good (n = 446) | 321 (72) | 52 (12) | 73 (16) | 1 | 1 | ||
| Moderate (n = 500) | 298 (60) | 68 (14) | 134 (27) | 1.18 (0.82‒1.69) | .380 | 1.07 (0.74‒1.54) | .73 |
| Poor (n = 159) | 46 (29) | 42 (26) | 71 (45) | 2.51 (1.67‒3.77) | < .0001 | 1.59 (1.00‒2.53) | .05 |
aValues are adjusted for age and gender (items included in PRISMA-7)