Table 3.
Number of people transitioning between frailty category per 1,000 person-years stratified by age group, adjusted for sex, deprivation, ethnicity and location
| Incidence of transition to a different frailty category after 1 year per 1,000 person-years at risk (PYAR) | Died (per 1,000 PYAR) | |||||
|---|---|---|---|---|---|---|
| Frailty category at the beginning of the year by age group | Number per 1,000 remaining in category | Time in category (years) mean (SEM) | Mild | Moderate | Severe | |
| Fit | ||||||
| 50–64 | 950 | 19.62 (0.171) | 47 | 1 | 0 | 2 |
| 65–74 | 880 | 7.82 (0.069) | 111 | 4 | 0 | 5 |
| 75–84 | 772 | 3.87 (0.035) | 198 | 15 | 1 | 14 |
| 85+ | 666 | 2.46 (0.025) | 250 | 29 | 1 | 53 |
| Mild | ||||||
| 50–64 | 954 | 21.01 (0.237) | – | 40 | 1 | 6 |
| 65–74 | 918 | 11.63 (0.130) | – | 70 | 2 | 11 |
| 75–84 | 844 | 5.91 (0.066) | – | 126 | 7 | 24 |
| 85+ | 743 | 3.36 (0.039) | – | 173 | 13 | 72 |
| Moderate | – | |||||
| 50–64 | 947 | 18.47 (0.342) | – | – | 38 | 15 |
| 65–74 | 918 | 11.72 (0.199) | – | – | 57 | 25 |
| 75–84 | 864 | 6.86 (0.114) | – | – | 91 | 45 |
| 85+ | 781 | 4.05 (0.069) | – | – | 113 | 106 |
| Severe | ||||||
| 50–64 | 966 | 28.91 (1.299) | – | – | – | 34 |
| 65–74 | 948 | 18.53 (0.665) | – | – | – | 53 |
| 75–84 | 918 | 11.74 (0.396) | – | – | – | 82 |
| 85+ | 845 | 5.94 (0.200) | – | – | – | 155 |
Note: row totals may be less than or exceed 1,000 due to rounding; SEM = standard error for the mean.