Variable | Patients (n = 10) | Controls (n = 10) | P-value | Mean difference (95% CI interval) |
---|---|---|---|---|
Demographic variables | ||||
 Male/Female | 5/5 | 10/0 |  |  |
 Age in years | 44.3 ± 17.8 | 37.1 ± 6.5 | 0.246 | 7.2 [-5.4, 19.8] |
 BMI in kg/m2 | 26.1 ± 5.7 | 24.6 ± 3.8 | 0.529 †| 1.5 [-3.1, 6.1] |
 Side (Left/Right) | 7/3 | 5/5 |  |  |
 Pathogenesis | ||||
  – primary arthritis | 1 |  |  |  |
  – posttraumatic arthritis | 7 |  |  |  |
  – other | 2 |  |  |  |
Spatiotemporal variables | ||||
 Cadence (steps/min) | 102.4 ± 7.9 | 107.5 ± 8.9 | 0.197 | 5.1 [-2.8, 13.0] |
 Walking speed (m/s) | 1.0 ± 0.2 | 1.2 ± 0.1 | 0.004* | 0.2 [0.1, 0.3] |
 Step length (m) | 0.6 ± 0.09 | 0.7 ± 0.04 | 0.001* | 0.1 [0.04, 0.17] |
 Step time (s) | 0.6 ± 0.05 | 0.6 ± 0.04 | 0.181 | 0.0 [-0.04, 0.04] |
Patient Reported Outcome Measures (PROM) | ||||
 VAS pain score |  |  |  |  |
  (10-point scale) |  |  |  |  |
  – median | 6.3 |  |  |  |
  – average | 6.8 ± 1.3 |  |  |  |
 FFI pain subscore (36-point scale) | 18.6 ± 6.4 |  |  |  |
 FFI disability subscore (36-point scale) | 20.3 ± 5.7 |  |  |  |
 SF-36 form |  |  |  |  |
  – Physical functioning | 51.0 |  |  |  |
  – Role limitations due to physical health | 40.0 |  |  |  |
  – Role limitations due to emotional problems | 53.3 |  |  |  |
  – Energy/fatigue | 56.0 |  |  |  |
  – Emotional well-being | 54.8 |  |  |  |
  – Social functioning | 62.5 |  |  |  |
  – Pain | 41.8 |  |  |  |
  – General health | 66.0 |  |  |  |