Table 3.

Explorative multiple linear regression with fear of falling (FES(S) scores) as the dependent variable among people with Parkinson's disease^{a, b}.

Adjusted R 2: 0.59	B (95% CI)	β	P-value
Independent variables
Balance problems (item 6, Walk-12G)
Not at all	Reference category
A little	3.6 (−6.3, 13)	0.05	0.474
Moderately-extremely	26 (14, 38)	0.36	<0.001
Limited ability to climb stairs (item 5, Walk-12G)
Not at all	Reference category
A little	6.8 (−3.4, 17)	0.084	0.188
Moderately-extremely	27 (16, 37)	0.37	<0.001
Turning hesitations (item 6, FOGQsa)	21 (12, 30)	0.29	<0.001

^aFor the regression analysis, FES(S) scores (range, 0–130) were reversed (0 = better).

^bIndependent variables (method: enter with manual backward deletion) were: “Have you been limited in your ability to climb up and down stairs?" (item 5, Walk-12G), “Have you had problems balancing when standing or walking?" (item 6, Walk-12G), “Have you been limited in how far you are able to walk?" (item 11, Walk-12G), turning hesitations (item 6, FOGQsa), and “Has your walking been slow?" (item 12, Walk-12G).

The original five response categories of Walk-12G were recoded before being entered in the model: “not at all,” “a little,” or “moderately-quite a bit-extremely.”

B, regression coefficient; CI, confidence interval; β, standardized regression coefficient.