Table 1 Characteristics of the study population (n = 186)
Baseline | 2-year follow-up | |||
|---|---|---|---|---|
Number | Number | |||
Age, years | 186 | 61 (7.3) | - | - |
Female, n (%) | 186 | 127 (68) | - | - |
Radiographic OA-KL score ≥2, n (%) | 184 | 130 (70) | 186 | 123 (66) |
WOMAC pain score, 0-20 | 183 | 7.9 (3.8) | 185 | 7.0 (4.3)ª |
WOMAC stiffness score, 0-8 | 179 | 3.7 (1.7) | 186 | 3.5 (2.0)ª |
WOMAC physical function score, 0-68 | 183 | 28.6 (13.4) | 186 | 27.0 (15.3) |
Comorbidities count, CIRS ≥2 | 184 | 0.8 (1.0) | 175 | 1.1 (1.0)ª |
NSAIDs, yes, n (%) | 185 | 30 (16) | 186 | 38 (20) |
Body mass index, kg/m2 | 185 | 29.3 (5.5) | 186 | 29.3 (5.4) |
Physical activity ≥30 minutes, times per week | - | No information | 183 | 3.0 (1.3) |
PT treatment during the past 2 years, n (%) | - | No information | 186 | 149 (80) |
Knee muscle strengthb, Nm/kg | 177 | 0.88 (0.4) | 183 | 0.95 (0.4)ª |
Inflammatory markers | ||||
C-reactive protein, mg/L | 183 | 184 | ||
Median, IQR | 2 (1-4) | 2 (1-3) | ||
Mean, SD | 3.4 (5.4) | 2.9 (3.1) | ||
>3 mg/L, n (%) | 50 (27) | 45 (24) | ||
ESR, mm/hour | 183 | 186 | ||
Median, IQR | 9 (5-15) | 7 (4-12) | ||
Mean, SD | 11.6 (8.9) | 9.5 (8.4)ª | ||
≥20 mm/hour, n (%) | 34 (18) | 25 (13) | ||