Research Article

Smaller and Denser Speech Graphs in Nondemented Patients with Progressive Supranuclear Palsy

Table 1

Demographic and clinical features and neuropsychological measures of patients and healthy controls (means, standard deviations, and group differences).

Features/measuresPSP-RS ()PD ()Healthy controls ()Group differences ( values)

Male : female16 : 1317 : 2126 : 250.845
Age (years)61.9 (6.2)60.4 (7.1)60.4 (6.9)0.607
Education (years)10.7 (3.0)11.3 (2.9)11.8 (2.1)0.197
Motor symptoms
 MDS-UPDRS III: motor examination27.5 (10.6)23.4 (12.2)0.162
 Hoehn and Yahr Scale2.4 (0.6)2.1 (0.8)0.125
 Disease duration (years)1.4 (2.1)2.0 (2.0)0.202
 Duration of motor symptoms (years)2.7 (2.1)3.5 (2.5)0.179
 Levodopa equivalent daily dose (mg/day)332.8 (259.2)320.6 (275.1)0.855
Non-motor functions
 Non-motor Symptoms Scale36.5 (24.5)26.6 (21.6)0.172
 Beck Depression Inventory-II3.4 (2.0)3.0 (2.0)2.4 (1.8)0.074
 REM Sleep Behaviour Disorder Screening Questionnaire1.8 (1.0)a3.8 (1.4)b2.1 (2.1)0.001
 Epworth Sleep Scale4.7 (5.1)4.2 (3.9)3.1 (2.0)0.165
 Montreal Cognitive Assessment23.5 (2.1)b24.3 (2.6)b27.9 (1.4)<0.001

Note: PSP-RS: progressive supranuclear palsy-Richardson’s syndrome; PD: Parkinson’s disease; MDS-UPDRS: Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale. Group differences, values of one-way ANOVAs or the Kruskal-Wallis one-way ANOVAs as appropriate. Asterisks (), a significant difference (two-tailed, , Bonferroni’s correction for thirteen tests). Post hoc two-sample -tests, . aCompared with patients with PD. bCompared with healthy controls.