Table 1 Descriptive statistics for 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) | – | – |
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) | – | – |
Quality of motivation | ||||||
Autonomous motivation (BREQ-2) | 102 | 7.2 (1.4) | 53 | 7.5 (1.5) | 53 | − 0.1 (1.2) |
Controlled motivation (BREQ-2) | 102 | 4.3 (1.6) | 53 | 4.3 (1.7) | 53 | − 0.0 (1.7) |
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) |
Clinically-important outcomes | ||||||
DAS-28 | 102 | 4.0 (1.5) | 53 | 4.0 (1.5) | 53 | 0.2 (1.3) |
CRP (mg/l) | 102 | 6.1 (7.6) | 52 | 6.2 (8.2) | 52 | 0.9 (8.3) |
Patient-important 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) |