Skip to main content
. 2019 Mar 5;92(10):e1109–e1120. doi: 10.1212/WNL.0000000000007037

Figure 1. Correlation between 39-item Parkinson's Disease Questionnaire summary index (PDQ-39-SI) at baseline and change to 24 months.

Figure 1

The relation between PDQ-39-SI at baseline and the improvement PDQ-39-SI between baseline and 24 months is shown. The correlation is more pronounced for the deep brain stimulation (DBS) group than for the best medical treatment (BMT) group.