Table 1 Demographic and clinical characteristics of the patient and control group
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 | |||