Table 1. Baseline Characteristics of Participants.
| Characteristic | Participants, No. (%) | |
|---|---|---|
| PBT group (n = 70) | Control group (n = 70) | |
| Age, mean (SD), y | 72.7 (4.7) | 72.0 (4.7) |
| Sex | ||
| Female | 41 (59) | 38 (54) |
| Male | 29 (41) | 32 (46) |
| Frailty, median (IQR), scorea | 2 (1-3) | 2 (1-3) |
| Living alone | 23 (33) | 24 (34) |
| With low activity level | 4 (6) | 6 (9) |
| No. of medications used, median (IQR) | 2 (0-4) | 3 (0-4) |
| Function of daily activities, median (IQR), scoreb | 2 (1-2) | 2 (1-2) |
| Had a fall within past 12 mos | 28 (40) | 29 (41) |
| Concern with falling, median (IQR), scorec | 7 (7-8) | 7 (7-8) |
| Cognition, median (IQR), scored | 26 (24-28) | 26 (24-28) |
| Physical function, median (IQR), scoree | 12 (11-12) | 12 (11-12) |
| Habitual gait speed, mean (SD), m/s | 1.3 (0.2) | 1.3 (0.2) |
| Executive function, median (IQR), sf | 46.4 (28.8-61.3) | 39.8 (26.1-61.3) |
Abbreviation: PBT, perturbation-based balance training.
a
Tilburg Frailty Indicator: score range of 0 to 15, with a lower score indicating less frailty.
b
Vulnerable Elders-13 Survey: score range of 0 to 10, with a lower score indicating less vulnerable.
c
Short Falls Efficacy Scale: score range of 7 to 28, with a lower score indicating less concern about falling.
d
Short Orientation-Memory-Concentration Test: score range of 0 to 28, with a higher score indicating better performance.
e
Short Physical Performance Battery: score range of 0 to 12, with a higher score indicating better performance.
f
Time to complete the Trail Making Test Part A was subtracted from Part B time, with less time indicating better executive function.