Table 3: Spearman’s correlations between UE PCI, Gait PCI, FOG-Q, and number of FO-UE events.

FO-UEUE PCI

Baseline
 UE PCI0.41*
 Gait PCI−0.220.18
 FOG-Q0.270.09
Fast
 UE PCI0.10
 Gait PCI0.040.15
 FOG-Q0.45*−0.05
Small
 UE PCI0.66**
 Gait PCI0.280.19
 FOG-Q0.300.27
SmallFast
 UE PCI−0.32
 Gait PCI0.060.34*
 FOG-Q−0.120.21

P < 0.05.
P < 0.01.
Abbreviations:
UE: upper extremity.
PCI: phase coordination index.
FOG-Q: freezing of gait questionnaire.
FO-UE: freezing of upper extremity.