Table 1.
Participant characteristics
| Overall (n = 42) | KOA (n = 29) | Knee Replacement (n = 13) | |
|---|---|---|---|
| Age, M ± SD, yr | 61.8 ± 7.6 | 59.5 ± 6.5 | 66.8 ± 7.7 |
| BMI, M ± SD, kg/m2 | 31.4 ± 7.2 | 31.0 ± 7.1 | 32.4 ± 7.5 |
| Female, n (%) | 28 (67) | 16 (55) | 12 (92) |
| Race, n (%) | |||
| White | 42 (93) | 27 (93) | 12 (92) |
| Black | 3 (7) | 2 (7) | 1 (8) |
| Education, n (%) | |||
| <College degree | 11 (26) | 8 (28) | 3 (23) |
| ≥College degree | 31 (74) | 21 (72) | 10 (77) |
| Employment Status, n (%) | |||
| Working ≥part‐time | 24 (57) | 19 (66) | 5 (38) |
| Retired | 14 (33) | 7 (24) | 7 (54) |
| Not working | 4 (10) | 3 (10) | 1 (8) |
| Technology ownership, n (%) | |||
| Computer | 41 (98) | 28 (97) | 13 (100) |
| Mobile phone | 39 (93) | 27 (93) | 12 (92) |
| Smartphone | 34 (87) | 24 (83) | 10 (77) |
| Tablet | 19 (45) | 13 (45) | 6 (46) |
| Physical activity monitor | 11 (26) | 4 (14) | 7 (54) |
| Health conditions, n (%) | |||
| Rheumatoid arthritis | 4 (10) | 2 (7) | 2 (15) |
| Hypertension | 17 (41) | 12 (41) | 5 (39) |
| Heart Disease | 3 (7) | 3 (10) | ‐ |
| Diabetes | 4 (10) | 4 (13) | ‐ |
| Depression | 7 (17) | 3 (10) | 4 (31) |
| Anxiety | 5 (12) | 3 (10) | 2 (15) |
| PROMIS Measures, M ± SD | |||
| Mobility | 42.6 ± 2.3 | 42.4 ± 2.3 | 43.1 ± 2.3 |
| Pain intensity | 55.1 ± 2.1 | 56.3 ± 1.8 | 52.6 ± 2.6 |
| Pain interference | 45.2 ± 2.8 | 46.0 ± 2.8 | 43.3 ± 2.9 |
BMI, body mass index; KOA, knee osteoarthritis; M, mean; PROMIS, Patient‐Reported Outcomes Measurement Information System.