Research Article

Preoperative Attention/Memory Problem Affects the Quality of Life of Parkinson’s Disease Patients after Deep Brain Stimulation: A Cohort Study

Table 2

Outcome parameters assessed at preoperative baseline and at postoperative 6- and 12-month follow-ups for a total of 93 participants (N = 93).

VariableBaseline6-month follow-up12-month follow-upPost hoc tests
MeanSDMeanSDMeanSD

PDQ-8 summary index12.426.043.924.043.033.86<0.001a b c
NMSS domains
 Cardiovascular1.392.670.671.860.691.910.075
 Sleep/fatigue15.1211.955.777.275.676.03<0.001a b c
 Mood/cognition11.2714.575.8610.625.709.730.006a b c
 Perceptual problems/hallucinations1.473.470.471.960.431.680.030a b c
 Attention/memory5.437.232.773.941.913.43<0.001a b c
 Gastrointestinal7.878.045.895.866.636.580.163
 Urinary7.239.172.105.930.852.79<0.001a b c
 Sexual function1.514.060.180.990.181.170.010a b c
 Miscellaneous9.6310.144.085.665.196.88<0.001a b c
 NMSS total score60.9147.9827.8026.6827.2625.32<0.001a b c

Post hoc comparisons (Tamhane’s T2 test): a = significant difference between baseline and 6-month follow-up (); b = significant difference between baseline and 12-month follow-up (); c = significant difference between 6-month follow-up and 12-month follow-up (). indicates , indicates , indicates .