Table 2.
Baseline Characteristics of the Sample and Baseline Predictors of Engaging in ≥2.5 Hours of MVPA at the 12-week Follow-up
| Demographic Characteristics | Baseline Value | Predictor of 12-week MVPA | ||
|---|---|---|---|---|
| N | Mean (SD) or % | OR (95% CIs)a | p-value | |
| Age, years | 152 | 57.0 (9.9) | .98 (0.94, 1.02) | 0.2689 |
| Gender | ||||
| Male | 19 | 12.5 | 2.58 (0.49, 13.63) | 0.2613 |
| Female | 133 | 87.5 | Reference | |
| Education | ||||
| High school gradate or less | 18 | 11.8 | 0.92 (0.29, 2.90) | 0.8883 |
| At least some college | 134 | 88.2 | Reference | |
| Marital, not married | ||||
| Not married | 52 | 34.2 | 1.20 (0.53, 2.71) | 0.6550 |
| Married or partnered | 100 | 65.8 | Reference | |
| Race | ||||
| White | 96 | 63.2 | 2.06 (0.88, 4.85) | 0.0971 |
| Non-white | 56 | 36.8 | Reference | |
| Health-related Characteristics | ||||
| BMI, kg/m2 | 152 | 32.4 (8.7) | 0.94 (0.89, 0.99) | 0.0106 |
| Health status | ||||
| Excellent or very good | 50 | 32.9 | 3.89 (1.18, 12.79) | 0.0578 |
| Good | 72 | 47.4 | 1.48 (0.53, 4.14) | |
| Fair or poor | 30 | 19.7 | Reference | |
| Days with poor physical health | 151 | 6.7 (9.5) | 0.96 (0.92, 1.00) | 0.0415 |
| Days with poor mental health | 150 | 4.7 (7.6) | 1.00 (0.94, 1.05) | 0.8684 |
| Number of health conditions | 150 | 1.2 (0.9) | 0.61 (0.38, 0.98) | 0.0423 |
| Hypertension | ||||
| Yes | 77 | 50.7 | 0.41 (0.18, 0.93) | 0.0337 |
| No | 75 | 49.3 | Reference | |
| High cholesterol | 0.0433 | |||
| Yes | 64 | 42.4 | 0.42 (0.18, 0.97) | |
| No | 87 | 57.6 | Reference | |
| Cancer | 0.4481 | |||
| Yes | 19 | 12.7 | 1.59 (0.48, 5.33) | |
| No | 131 | 87.3 | Reference | |
| Stroke | 0.5880 | |||
| Yes | 3 | 2.0 | 2.08 (0.15, 29.82) | |
| No | 148 | 98.0 | Reference | |
| Osteoporosis | 0.5739 | |||
| Yes | 21 | 13.9 | 0.73 (0.24, 2.23) | |
| No | 130 | 86.1 | Reference | |
| Depressive symptoms (0–30) | 152 | 6.0 (4.7) | 0.98 (0.90, 1.07) | 0.7014 |
| Arthritis-specific Measures | ||||
| Arthritis duration, years | 152 | 11.1 (9.1) | 1.02 (0.97, 1.06) | 0.4698 |
| NSAID use | 0.7608 | |||
| Yes | 104 | 68.4 | 1.13 (0.50, 2.56) | |
| No | 48 | 31.6 | Reference | |
| COX-2 inhibitor use | 0.6823 | |||
| Yes | 21 | 13.8 | 1.27 (0.40, 4.03) | |
| No | 131 | 86.2 | Reference | |
| Oral steroid use | 0.3645 | |||
| Yes | 16 | 10.5 | 1.84 (0.49, 6.94) | |
| No | 136 | 89.5 | Reference | |
| Narcotic pain reliever use | 0.4131 | |||
| Yes | 21 | 13.8 | 0.62 (0.19, 1.97) | |
| No | 131 | 86.2 | Reference | |
| DMARDS use | 0.1461 | |||
| Yes | 18 | 11.8 | 2.54 (0.72, 8.93) | |
| No | 134 | 88.2 | Reference | |
| Acetaminophen use | 0.2763 | |||
| Yes | 54 | 35.5 | 0.64 (0.29, 1.43) | |
| No | 98 | 64.5 | Reference | |
| Fatigue (0–10) | 152 | 4.8 (2.6) | 0.91 (0.78, 1.06) | 0.2258 |
| Pain (0–10) | 152 | 4.6 (2.3) | 0.74 (0.61, 0.89) | 0.0017 |
| Stiffness (0–10) | 152 | 5.1 (2.5) | 0.76 (0.64, 0.89) | 0.0011 |
| Self-reported Disability (0–3) | 152 | 0.6 (0.5) | 0.77 (0.36, 1.63) | 0.4917 |
| Arthritis self-efficacy (8–80) | 152 | 6.3 (2.1) | 1.32 (1.08, 1.61) | 0.0073 |
| Functional Measures | ||||
| Balance, displacement COP, cm | 149 | 36.9 (7.6) | 1.03 (0.97, 1.10) | 0.2718 |
| 6- minute walk distance, m | 151 | 497.8 (90.3) | 1.01 (1.00, 1.02) | 0.0014 |
| 30-second chair stands, # | 152 | 10.0 (3.4) | 1.04 (0.92, 1.17) | 0.5360 |
| Gait speed, m/s | 152 | 1.1 (0.2) | 3.86 (0.57, 26.03) | 0.1644 |
| Seated reach, cm | 152 | 21.9 (8.8) | 1.05 (1.00, 1.10) | 0.0529 |
| Grip strength, kg | 152 | 27.3 (9.7) | 0.97 (0.91, 1.02) | 0.2256 |