Table 3 Correlations with FOGQsa and descriptive values for clinical tests

r_s

p-value

r_s

p-value

r_s

p-value

Age, years

0.14

0.046

0.07

>0.3

0.21

0.006

PD-duration, years

0.42

<0.001

0.50

0.002

0.40

<0.001

Falls-Efficacy Scale

-0.74

<0.001

-0.57

0.001

-0.78

<0.001

Physical Functioning (PF, SF-36)

-0.61

<0.001

-0.50

0.006

-0.68

<0.001

Item 13, UPDRS II (Falling)

0.49

<0.001

0.53

0.001

0.49

<0.001

Item 14, UPDRS II (Freezing)

0.76

<0.001

0.72

<0.001

0.78

<0.001

Item 15, UPDRS II (Walking)

0.57

<0.001

0.56

0.001

0.64

<0.001

Clinical sample, n = 36

Median (q1-q3)

r_s

p-value

UPDRS I, Mentation, behavior and mood

2.0 (0-3.0)

0.33

0.059

UPDRS II, Activities of Daily Living

7 (3.0-13.5)

0.68

<0.001

UPDRS III, Motor examination

15.0 (8.0-20.0)

0.55

0.001

Item 29, UPDRS III (Gait)

0.5 (0-1.0)

0.46

0.006

Item 30, UPDRS III (Postural stability)

1.0 (0-2.0)

0.49

0.003

Hoehn and Yahr ("on")

3.0 (2.0-3.0)

0.44

0.009

Hoehn and Yahr ("off")

3.0 (3.0-4.0)

0.58

<0.001

Dyskinesias (UPDRS IV, items 32-35)

2.5 (1.0-5.0)

0.63

<0.001

Motor fluctuations (UPDRS IV, items 36-39)

3.0 (1.3-3.8)

0.60

<0.001

Timed Up & Go, sec (Mean, SD)

9.7 (2.7)

0.34

0.049

Comfortable gait speed, m/s (Mean, SD)

1.32 (0.23)

-0.29

0.094

Fast gait speed, m/s (Mean, SD)

1.60 (0.40)

-0.33

0.055