Table 1.

Clinical and demographic data for the study population (n = 60).

Variable	Mean ± SD
Age	68.1 ± 7.1
Hoehn-Yahr stage	2.6 ± 0.5
Disease duration	9.7 ± 4.4
Onset of PS	8.1 ± 6.6
UPDRS II	15.6 ± 5.1
UPDRS III	21.9 ± 5.3
Daily levodopa equivalent dose (mg)	679.5 ± 322.6

PS: Pisa Syndrome; UPDRS: Unified Parkinson's Disease Rating Scale.