Table 1. Baseline Characteristics by Group Assignment.
| Intervention (n=34) |
Control (n=28) |
Unadjusted p-value | |
|---|---|---|---|
| Demographics | |||
| Mean age in years (SD) | 73.3 (9.6) | 72.2 (5.8) | 0.62 |
| Income < $2000/month | 62% | 42% | 0.13 |
| Education <12 years | 24% | 22% | 0.90 |
| Self-rated health (% excellent or very good) | 35% | 31% | 0.71 |
| Requiring assistance with any instrumental activity of daily living (IADL) | 21% | 18% | 0.79 |
| Body mass index, mean (SD) | 29.6 (5.5) | 31.6 (5.4) | 0.17 |
| Comorbidity score, mean (SD) | 2.6 (1.7) | 2.6 (1.4) | 0.86 |
| Psychosocial characteristics | |||
| Self-efficacy for exercise scale*, mean (SD) | 53.1 (22.2) | 55.0 (20.3) | 0.74 |
| Exercise support from family scale†, mean (SD) | 23.3 (8.3) | 22.7 (9.8) | 0.79 |
| Exercise support from friends scale‡, mean (SD) | 21.1 (10.1) | 20.0 (10.2) | 0.68 |
| Perceived barriers to exercise scale§, mean (SD) | 34.2 (10.3) | 33.9 (6.3) | 0.90 |
| Baseline measures of study outcomes | |||
| Primary outcome: Mean steps walked per week (SD) | 12727 (9387) | 13089 (8636) | 0.88 |
| Secondary outcomes: | |||
| CHAMPS score, hours/week of physical activity (SD) | 8.7 (8.9) | 9.5 (8.9) | 0.68 |
| Mean systolic blood pressure, mmHg (SD) | 155.8 (19.7) | 146.9 (22.2) | 0.10 |
| Mean diastolic blood pressure, mmHg (SD) | 82.5 (9.2) | 81.1 (11.3) | 0.61 |
| Mean weight in lbs (SD) | 177.5 (36.7) | 183.7 (43.4) | 0.55 |
| American Geriatrics Society pain score¶, mean (SD) | 25.3 (20.1) | 21.2 (19.3) | 0.42 |
*
Range from 0-90 with higher numbers indicating greater self-efficacy
†
Range from 13-65 with higher numbers indicating greater support
‡
Range from 10-50 with higher numbers indicating greater support
§
Range from 14-70 with lower numbers indicating greater barriers
¶
Range from 0-100 with higher numbers indicating more pain