Table 3.
Differences in activity countsa between healthy controls and arthritis patients
| Dependant variable | Healthy controls | Arthritis patients | t test | p value |
|---|---|---|---|---|
| Average daily activity counts | ||||
| Time following waking | ||||
| 15 min | 390,64.2 (9,570.17) | 42,895.5 (12,568.1) | −0.96 | 0.34 |
| 30 min | 86,338.6 (20,113.9) | 81,937.6 (21,053.8) | 0.60 | 0.56 |
| 45 min | 135,363.0 (30,286.5) | 121,423.0 (31,688.4) | 1.24 | 0.22 |
| 60 min | 184,561.0 (41,770.7) | 163,870.0 (47,302.2) | 1.26 | 0.22 |
| 120 min | 382,895.0 (104,630.0) | 358,015.0 (98,553.7) | 0.66 | 0.52 |
| 240 min | 748,328.0 (199,125.0) | 738,955.0 (180,628) | 0.13 | 0.90 |
| 1,440 min | 2,896,070.0 (463,906.0) | 2,653,530.0 (476,761.0) | 1.08 | 0.30 |
| AUC activity counts | ||||
| Time following waking | ||||
| 15 min | 7.84 (0.78) | 7.52 (0.52) | 1.32 | 0.20 |
| 30 min | 14.73 (0.91) | 15.92 (0.99) | −3.52 | 0.002** |
| 45 min | 22.00 (1.12) | 23.64 (1.69) | −3.32 | 0.002** |
| 60 min | 28.67 (1.96) | 30.58 (2.49) | −2.39 | 0.02* |
| 120 min | 59.34 (4.36) | 58.74 (4.27) | 0.37 | 0.71 |
| 240 min | 122.82 (7.29) | 117.67 (6.85) | 1.90 | 0.07 |
| 1,440 min | 950.42 (25.96) | 959.74 (27.53) | −0.75 | 0.46 |
Values are given as mean (SD).
a
Activity count as determined by the proprietary algorithm from ActiLife software.
*
p < 0.05;
**
p < 0.005.