Table 4.
Muscle strength, hand pain, cardiorespiratory fitness, physical functioning, physical activity at baseline, and 6 months and 12 months in the patient and control group
| PsA group | Within-group difference p-value |
Control group | Within-group difference p-value |
Between-group difference p-value |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
BL (n = 41) |
M6 (n = 41) |
M12 (n = 39) |
BL-M6 | BL-M12 |
BL (n = 42) |
M6 (n = 42) |
M12 (n = 39) |
BL-M6 | BL-M12 | BL | M6 | M12 | |
| Outcomes | |||||||||||||
|
Hand-grip strength, N |
268 (196; 326) |
264 (212; 352) |
244 (180; 352) |
0.200 | 0.457 |
304 (280; 348) |
304 (272; 370) |
300 (244; 384) |
0.554 | 0.573 | 0.018 | 0.034 | 0.047 |
|
Hand pain (0–100) |
20.0 (0.0; 34.2) |
0.0 (0.0; 31.6) |
0.0 (0.0; 40.0) |
0.260 | 0.272 |
0.0 (0.0; 0.0) |
0.0 (0.0; 8.4) |
0.0 (0.0; 0.0) |
0.050 | 0.193 | < 0.001 | 0.078 | 0.077 |
| TST, sec |
26.9 (22.1; 35.4) |
23.3 18.5; 29.8) |
23.2 (19.4; 30.4) |
< 0.001 | 0.001 |
23.7 (21.0; 32.8) |
22.3 (18.7; 26.5) |
20.1 (16.8; 25.9) |
< 0.001 | < 0.001 | 0.240 | 0.463 | 0.040 |
| O2 ml/kg × min |
19.5 (15.8; 22.9) |
25.0 (21.0; 31.6) |
23.9 (21.6; 30.0) |
< 0.001 | < 0.001 |
18.0 (12.3; 27.7) |
24.1 (19.1; 30.9) |
23.0 (19.2; 27.4) |
< 0.001 | < 0.001 | 0.167 | 0.450 | 0.330 |
| O2 l/min |
2.0 (1.8; 2.2) |
2.1 (1.7; 2.4) |
2.1 (1.8; 2.6) |
0.100 | 0.098 |
2,0 (1.6; 2.3) |
2.0 (1.8; 2.6) |
2.1 (1.7; 2.4) |
0.018 | 0.028 | 0.707 | 0.992 | 0.771 |
|
SF-36 PCS (0–100) |
35.8 (24.9; 46.3) |
45.7 (37.0; 51.5) |
46.1 (34.5; 49.8) |
< 0.001 | 0.008 |
45.7 (32.9; 50.9) |
52.2 (46.6; 55.7) |
51.6 (43.8; 55.4) |
< 0.001 | < 0.001 | 0.019 | 0.003 | < 0.001 |
| SGPALS | 0.002 | 0.001 | 0.004 | 0.001 | 0.137 | 0.335 | 0.603 | ||||||
| PA1, n (%) |
16 (39) |
8 (19.5) |
5 (12.8) |
10 (23.3) |
4 (9.3) |
3 (7) |
|||||||
| PA2, n (%) |
16 (39) |
17 (41.5) |
20 (51.3) |
26 (60.6) |
23 (53.3) |
19 (48.7) |
|||||||
| PA3, n (%) |
9 (22) |
16 (39) |
14 (35.9) |
7 (16.3) |
16 (37.2) |
16 (41) |
|||||||
| PA4, n (%) | 0 | 0 | 0 | 0 | 0 |
1 (2.6) |
|||||||
For continuous variables, median (IQR) per participant is presented. For categorical variables, number (percentage) is presented. TST, timed stand test; SF-36 PCS the short form (36) health survey (physical component score; SGPALS the Saltin–Grimby physical activity level scale; PA1; sedentary, PA2, low physical activity; PA3, moderate physical activity; PA4, vigorous physical activity. Missing values at baseline: PsA group aerobic capacity: (n = 13), SF-36 PCS (n = 1); control group aerobic capacity (n = 8), TST (n = 1). Missing values at 6-month: PsA group aerobic capacity: (n = 13), SF-36 PCS (n = 6); control group aerobic capacity (n = 8), SF-36 PCS (n = 10). Missing values at 12-month PsA group aerobic capacity: (n = 11), SF-36 PCS (n = 5) control group aerobic capacity (n = 8), SF-36 PCS (n = 11)