Deep Brain Stimulation Frequency of the Subthalamic Nucleus Affects Phonemic and Action Fluency in Parkinson’s Disease

Table 4

Comparisons of the verbal fluency tasks and UPDRS-III between the different frequencies of SNT-DBS.

Variables	60 Hz	130 Hz	Difference	CI 95%
	Mean ± SE	Mean ± SE
UPDRS III, total	34.33 ± 4.74	35.44 ± 4.30	−1.11	−9.38–7.15	0.792
UPDRS III, tremor	2.72 ± 1.20	2.00 ± 1.09	0.72	−2.19–3.63	0.627
UPDRS III, gait	1.28 ± 0.26	1.61 ± 0.33	−0.33	−0.80–0.13	0.157
UPDRS III, pull test	1.28 ± 0.29	1.83 ± 0.34	−0.56	−1.12–0.00	0.052
Phonemic VF, P	16.53 ± 1.82	12.47 ± 1.56	4.05	1.65–6.45
Phonemic VF, FAS	26.84 ± 3.36	23.79 ± 2.79	3.05	0.10–6.00
Semantic VF, animals	13.70 ± 1.20	12.89 ± 1.08	0.89	−0.76–2.55	0.290
Unconstrained VF	29.63 ± 2.92	27.58 ± 2.59	1.95	−1.76–5.87	0.292
Action VF	9.94 ± 1.22	7.56 ± 1.94	2.39	0.77–4.00

CI: confidence interval; SE: standard error; UPDRS: Unified Parkinson’s Disease Rating Scale; VF: verbal fluency; .