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Table 4 Correlation between Clinical Scales and PTB and Percent time in Level 5

From: A method for measuring time spent in bradykinesia and dyskinesia in people with Parkinson’s disease using an ambulatory monitor

Clinical scale

Severity level

Pearson’s ρ

p-value

95% CI

UPDRS III

PTB

0.4

 < 0.0001

0.26–0.54

 

Percent time in Level 5

0.42

 < 0.0001

0.28–0.55

UPDRS Total

PTB

0.34

 < 0.0001

0.18–0.48

 

Percent time in Level 5

0.37

 < 0.0001

0.20–0.51

PDQ39

PTB

0.35

 < 0.0001

0.18–0.49

 

Percent time in Level 5

0.37

 < 0.0001

0.21–0.51