Table 1.
Descriptive statistics for the sample at T1 and T2, and change from T1 to T2
| n | T1 | n | T2 | n | Change | |
|---|---|---|---|---|---|---|
| Age (years) | 102 | 58.3 (12.3) | 53 | 58.9 (12.2) | – | – |
| Sex (% female) | 72 | 71 | 37 | 70 | – | – |
| Ethnicity (% Caucasian) | 97 | 95 | 51 | 96 | – | – |
| Marital status (% married) | 66 | 65 | 38 | 70 | – | – |
| RA disease | ||||||
| RA duration (years) | 102 | 10.4 (10.5) | 53 | 9.0 (8.1) | – | – |
| DAS-28 | 102 | 4.0 (1.5) | 53 | 4.0 (1.5) | – | – |
| Physical function (HAQ) | 102 | 1.2 (0.8) | 53 | 1.0 (0.8) | – | – |
| DMARDs (% on DMARDs) | 92 | 90 | 46 | 87 | – | – |
| Anti-TNF (% on anti-TNF) | 15 | 14 | 11 | 20 | – | – |
| NSAIDs (% on NSAIDs) | 19 | 18 | 11 | 20 | – | – |
| Physical health | ||||||
| Height (m) | 102 | 1.7 (0.1) | 53 | 1.7 (0.1) | – | – |
| Weight (kg) | 102 | 80.0 (20.3) | 53 | 81.7 (22.0) | – | – |
| BMI (kg/m2) | 102 | 29.1 (6.1) | 53 | 29.7 (6.6) | – | – |
| Systolic BP (mmHg) | 102 | 129 (15) | 53 | 132 (13) | – | – |
| Diastolic BP (mmHg) | 102 | 77 (9) | 53 | 77 (8) | – | – |
| RA outcomes | ||||||
| Pain (MPQ) | 102 | 12.8 (11.0) | 53 | 13.4 (11.0) | 53 | –0.7 (10.0) |
| Fatigue (MAF) | 102 | 24.8 (13.2) | 53 | 23.6 (13.2) | 53 | –1.5 (8.7) |
| ActivPAL3µ™ data | ||||||
| Valid wear time (min/day) | 102 | 913.0 (56.7) | 53 | 941.3 (60.4) | 53 | 20.5 (54.2) |
| Sedentary time (min/day) | 102 | 546.1 (116.6) | 53 | 574.8 (98.8) | 53 | 37.9 (65.3) |
| Standing time (min/day) | 102 | 267.5 (101.0) | 53 | 266.6 (92.7) | 53 | –13.1 (59.9) |
| Stepping time (min/day) | 102 | 99.4 (37.4) | 53 | 99.9 (40.3) | 53 | –4.3 (19.8) |
| Sedentary time (%/day) | 102 | 60.0 (12.9) | 53 | 61.4 (11.6) | 53 | 2.8 (6.8) |
| Standing time (%/day) | 102 | 29.2 (10.5) | 53 | 28.1 (8.9) | 53 | –2.1 (5.9) |
| Stepping time (%/day) | 102 | 10.9 (4.0) | 53 | 10.5 (4.0) | 53 | –0.7 (2.2) |
Values are percentages (%) or mean (s.d.). n: number of participants; T1: time point 1; T2: time point 2; –:not applicable; BP: blood pressure; MPQ: McGill Pain Questionnaire; MAF: Multidimensional Assessment of Fatigue Scale.