Table 1 Tremor detection performance on PD@Home (average across leave-one-subject out cross-validation folds, and standard deviation between brackets), for different subgroups and different types of activities

From: A generalizable and open-source algorithm for real-life monitoring of tremor in Parkinson’s disease

 

Sensitivity

Specificity

Weighted specificity across sitting, standing, gait and postural transitions

Overall (n = 48)

0.61 (0.20)

0.97 (0.05)

 

Subgroup

Tremor PD (n = 8)

0.61 (0.20)

0.91 (0.04)

0.92 (0.05)

Non-tremor PD (n = 16)

0.96 (0.06)

0.97 (0.05)

Non-PD controls (n = 24)

0.99 (0.01)

0.99 (0.01)

Type of activity

Sitting (n = 8/n = 48)

0.62 (0.28)

0.96 (0.07)

 

Standing (n = 7/n = 48)

0.48 (0.34)

0.99 (0.03)

 

Gait (n = 7/n = 48)

0.01 (0.03)

1 (0)

 

Postural transitions (n = 48)

-

1 (0.01)

 

Running/Exercising (n = 5)

-

1 (0)

 

Cycling (n = 14)

-

1 (0)

 

Driving motorized vehicle (n = 2)

-

1 (0.01)

 

Significant upper limb activity (n = 8)

-

0.98 (0.03)

 

Periodic activities (n = 5)

-

0.98 (0.04)

 
  1. The number of participants with data from the different sub-classes is indicated between brackets. Annotations for “Significant upper limb activity” and “Periodic” were only available for the 8 PD patients with tremor.