Table 3.
Differences in baseline characteristics between the oldest quartile, aged 77 years and older, and the youngest 3 quartiles
| Characteristic | Oldest quartile (n = 314) | Youngest three quartiles (n = 906) | p |
|---|---|---|---|
| Age (years, SD) | 80.6 ± 3.5 | 70.2 ± 3.3 | < .001 |
| Female (n, %) | 149 (48%) | 441 (49%) | 0.71 |
| Cardiovascular comorbidity (n, %) | 102 (32%) | 241 (27%) | 0.001 |
| Number of medications (median, IQR) | 3 (1–5) | 2 (1–4) | < .001 |
| Use of walking aid (n, %) | 59 (19%) | 30 (3%) | < .001 |
| Physical activity [min/day] (mean, SD) | 140 (86) | 168 (110) | < .001 |
| Hand-grip strength (mean, SD) | 29.5 ± 9.1 | 34.3 ± 10.3 | < .001 |
| Balance test abnormal (n, %) | 92 (29%) | 242 (27%) | 0.38 |