Table 3.
Comparison between patients in the low activity cluster and other patients.
| Factors associated with a low activity | Clusters according to moderate to vigorous activity duration | Clusters according to number of steps per day | ||||||
|
Low cluster (N=85) |
Other clusters (N=72) |
ORa (95% CI) |
P value |
Low cluster (N=60) |
Other clusters (N=97) |
OR (95% CI) |
P value |
|
| Type of arthritis, axSpAb, n (%) | 41 (48) | 33 (46) | 0.94 (0.79-1.12) | .51 | 27 (45) | 47 (48) | 0.97 (0.82-1.15) | .74 |
| Sex, female, n (%) | 49 (58) | 51 (71) | 0.86 (0.72-1.02) | .09 | 39 (65) | 61 (63) | 1.00 (0.84-1.18) | .97 |
| Age in years, ≥60 years, n (%) | 16 (19) | 6 (8) | 1.12 (0.84-1.49) | .44 | 15 (25) | 7 (7) | 0.97 (1.00-1.69) | .09 |
| BMIc, kg/m2, mean (SDd) | 26.1 (5.0) | 23.9 (3.5) | 1.13 (1.11-1.15)e | .007f | 26.5 (5.4) | 24.2 (3.5) | 1.12 (1.11-1.14)e | .007 |
| Disease duration, years, mean (SD) | 12.3 (9.2) | 8.5 (8.2) | 1.01(1.00-1.02) | .08 | 12.1 (9.0) | 9.6 (8.8) | 1.00 (0.99-1.01) | .79 |
| Employment status, employed, n (%) | 63 (74) | 57 (79) | 1.04 (0.84-1.29) | .74 | 40 (67) | 80 (82) | 0.97 (0.78-1.19) | .74 |
| Biological treatment, present, n (%) | 54 (64) | 34 (47) | 1.10 (0.94-1.30) | .23 | 41 (68) | 47 (48) | 1.18 (1.01-1.38) | .04 |
| PtGAg at baseline, mean (SD) | 3.6 (2.5) | 3.0 (2.2) | 1.02 (0.99-1.06) | .15 | 3.7 (2.5) | 3.1 (2.3) | 1.02 (0.98-1.05) | .32 |
aOR: odds ratio of low versus moderate to high activity levels.
baxSpA: axial spondyloarthritis.
cBMI: body mass index.
dSD: standard deviation.
eOR expressed for an increase in BMI of 5 units,
fP value ≤.05 are in italics.
gPtGA: patient global assessment.