Table 1.

Participants' characteristics

	Total sample n = 225	Clinical sample n = 36	Postal survey n = 189
Mean age, years (SD, min.-max.)	69.1 (8.9)	65.3 (6.2)	69.9 (9.1)
	42.0-91.0	49.0-83.0	42.0-91.0
	n = 221	n = 36	n = 185
Mean PD-duration, years (SD, min.-max.)	7.7 (6.8)	14.6 (8.3)	6.2 (5.5)
	0.33-44.0	2.2-44.0	0.33-28.0
	n = 210	n = 36	n = 174
Gender (men/women), n (%)	137 (62%)/	29 (81%)/	108 (58%)/
	84 (38%)	7 (19%)	77 (42%)
	n = 221	n = 36	n= 185
Falls past 6 months (yes/no), n (%)	88 (40%)/	19 (53%)/	69 (38%)/
	131 (60%)	17 (47%)	114 (62%)
	n = 219	n = 36	n = 183
Fear of falling (yes/no), n (%)	94 (43%)/	9 (25%)/	85 (46%)/
	125 (57%)	27 (75%)	98 (54%)
	n = 219	n = 36	n = 183
	Median, q1-q3	Median, q1-q3	Median, q1-q3
Falls-Efficacy Scale (S)	112.0	106.5	114.0
	75.0-130.0	94.8-129.0	69.0-130.0
	n = 183	n = 30	n = 153
Physical Functioning (PF, SF-36)	55.0	24.0	60.0
	29.0-75.0	20.0-28.0	35.0-80.0
	n = 218	n = 30	n = 188
Item 13, UPDRS II (Falling)	0.0	0.0	0.0
	0.0-1.0	0.0-1.0	0.0-1.0
	n = 223	n = 36	n = 187
Item 14, UPDRS II (Freezing)	0.0	0.0	0.0
	0.0-1.0	0.0-1.8	0.0-1.0
	n = 221	n = 36	n = 185
Item 15, UPDRS II (Walking)	1.0	1.0	1.0
	0.0-2.0	0.0-1.0	0.0-2.0
	n = 221	n = 34	n = 187

Falls-Efficacy Scale, Swedish version; the total score can range between 0-130 (higher scores = better).

Physical Functioning (PF, SF-36); total score range between 0-100 (higher scores = better).

Item 13, 14 and 15 of the UPDRS part II; each item graded from 0-4 (higher scores = greater severity).

Additional data regarding the participants are presented in Table 3.