Table 3.

Statistical significance of differences between the two groups of subjects

Clinical variables & PA metrics	Mild pain (n = 34)	Moderate to severe pain (n = 58)	p-val	Effect size: Cohen’s d (% of non-overlap between groups)
Pain intensity (VAS)	1.3 ± 1.5	6.8 ± 1.4	1.2e-15	3.60 (100 %)
Age(yrs)	64 ± 14	62 ± 13	0.47	0.13 (8 %)
Activity (%)	41 ± 17	34.5 ± 14	0.0009	0.78 (~47.1 %)
Walking (%)	9.5 ± 6	6.5 ± 4	0.001	0.75 (~45.4 %)
q.975 actv. (min)	37 ± 17	26 ± 12	0.002	0.73 (~44 %)
KS dist.	0.1 ± 0.07	0.2 ± 0.12	0.0007	0.84 (~48 %)
Entropy 1	0.52 ± 0.11	0.42 ± 0.10	0.001	0.79 (~47.2)
Entropy 2	0.045 ± 0.02	0.03 ± 0.01	0.0004	0.82 (~47.8)
Entropy 3	0.51 ± 0.40	0.28 ± 0.20	0.001	0.80 (47.4 %)
Composite score ‘Mobility’	0.62 ± 0.73	−0.36 ± 0.96	0.0004	1.10 (58.9 %)
Composite score ‘Complexity’	0.45 ± 0.9	−0.26 ± 0.71	0.0007	0.81 (~47.5 %)
Global composite score ‘Mobility & Complexity’	1.08 ± 1.5	−0.63 ± 1.60	1.1e-5	1.15 (~60 %)