Table 1.
Study subjects’ characteristics
| N = 77 | Baseline | Follow-up | Change | Mobility decline % of subjects |
|---|---|---|---|---|
| Age (years) | 82 ± 4 (75, 89) | 84 ± 3.9 (77, 92) | 1.9 ± 0.2 (1.6, 2.7) | NA |
| Women (%) | 46 (60%) | 46 (60%) | NA | NA |
| HPTN (%) | 55 (71%) | 54 (70%) | NA | NA |
| BMI | 26.6 ± 4.6 (18.1, 41.7) | 26.3 ± 4.5 (17.4, 40.5)* | −0.3 ± 1.1 (−3.9, 2.2) | NA |
| MMSE | 28.6 ± 1.2 (24, 30) | 27.6 ± 1.7 (21, 30)** | −1.0 ± 1.6 (−5, 3) | NA |
| Standing balancea | 3.5 ± 0.9 (0, 4) | 3.3 ± 1.0 (1, 4) | −0.1 ± 1.2 (−3, 4) | 25% (20/77) |
| Chair risea | 2.3 ± 1.1 (0, 4) | 2.4 ± 1.2 (0, 4) | 0.1 ± 1.0 (−3, 2) | 24% (19/77) |
| Walk speeda | 3.5 ± 0.7 (1, 4) | 3.4 ± 0.8 (1, 4) | −0.05 ± 0.6 (−2, 2) | 17% (13/77) |
| Tinetti gaitb | 11.2 ± 1.2 (5, 12) | 11.2 ± 1.3 (6, 12) | 0.01 ± 1.1 (−4, 4) | 22% (17/77) |
| Tinetti balanceb | 15.0 ± 1.4 (9, 16) | 14.5 ± 1.8 (10, 16)* | −0.57 ± 1.4 (−6, 3) | 46% (35/77) |
Values represent the mean ± SD (min, max) or percent
HPTN hypertension, BMI body mass index, MMSE mini-mental state exam, NA not applicable
*p < 0.05; **p < 0.0001 (Wilcoxon, paired samples)
aScores; components of the short physical performance battery (Guralnik et al. 1994)
bScores; mobility assessment as described in Tinetti (1986)