a cohort study, comparing 10 PD patients with severe speech impairment (MDS-UPDRS item 3.1 ≥ 3) with 10 PD patients with mild speech impairment (MDS-UPDRS item 3.1 ≤ 2), all submitted to STN-DBS.
The aim of this study was to evaluate the relationship between all MDS-UPDRS components and HRQoL in a representative international cohort of PD patients.