Table 2.

Baseline characteristics of the participants by sample

Characteristic		Validity sample (n = 348)	Reliability sample (n = 133)
Age in years		66 ± 13 (18–90)	66 ± 14 (18–85)
Male/female		218/130 (63/37%)	75/58 (56/44%)
Disease-specific measures
	Sub-acute stroke: NIH-SS, 0–42 points	5 ± 5 (0–22); n = 109	5 ± 5 (0–22); n = 51
	Parkinson’s disease: Hoehn and Yahr scale, 0–5 stages	3 (3–4); n = 100	3 (3–4); n = 47
	Multiple Sclerosis: EDSS, 0–10 grades	6.5 (6–8); n = 18	6.5 (5–8); n = 8
Disease duration,a days
	mean, SD (range)	30 ± 23 (7–150); n = 173	31 ± 23 (7–118); n = 63
	median (IQR)	22 (15–38); n = 173	22 (16–37); n = 63
Disease duration,a years
	mean, SD (range)	11 ± 8 (1–44); n = 175	12 ± 19 (1–44); n = 70
	median (IQR)	9 (5–14); n = 175	10 (5–16); n = 70
Time since admission at baseline assessment in days
	mean, SD (range)	7 ± 12 (0–87)	11 ± 15 (0–84)
	median (IQR)	4 (2–7)	6 (3–12)
Walking aid
	None	162 (47%)	59 (44%)
	Rollator/walker	83 (24%)	37 (28%)
	One cane/stick	25 (7%)	12 (9%)
	Two crutches/walking sticks	14 (4%)	5 (4%)
	Not ambulatory/wheelchair	64 (18%)	20 (15%)
de Morton Mobility Index, points		58 ± 26 (0–100)	59 ± 25 (0–100)

NIH-SS National Institutes of Health Stroke Scale, EDSS Expanded Disability Status Scale, SD standard deviation; IQR: interquartile range

Values are mean ± SD (range), median (IQR) or absolute numbers (%)

^a Disease duration is reported in days for (sub-acute) conditions with an exact date of event, such as stroke or spinal cord injury. Disease duration is reported in years for chronic conditions such as Parkinson’s disease or Multiple Sclerosis