title: Neuropsychological profile in Chinese patients with Parkinson's disease and normal global cognition according to Mini-Mental State Examination Score.
abstract: OBJECTIVE
  Cognitive impairments have been reported to be more common in non-demented patients with Parkinson's disease (PD) and education levels play an important role in intelligence. The studies on cognitive impairments in Chinese PD patients with higher education levels and normal global cognition according to Mini-Mental State Examination Score (MMSE) have not been reported.
  
  
  METHODS
  We enrolled 69 consecutive PD patients with over 6 years education levels and a MMSE score above 24 (of 30) and performed a battery of neuropsychological scales.
  
  
  RESULTS
  There are extensive cognitive domain impairments in PD patients with "normal" global cognitive according to MMSE. Montreal Cognitive Assessment (MoCA) is a highly sensitive scale to screen cognitive impairments in PD.
  
  
  CONCLUSIONS
  The cutoff score of 28 on the MMSE screening for cognitive impairment in Chinese PD patients with high education levels may be more appropriate.
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an City 710061, Shaanxi Province, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Qiao
authors.affiliation: Department of Neurology, The Second Affiliated Hospital of Xi'an Medical University Xi'an City 710038, Shaanxi Province, China.
authors.forename: Xiyuan
authors.initials: X
authors.lastname: Zheng
authors.affiliation: Department of Medical Administration, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an City 710061, Shaanxi Province, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an City 710061, Shaanxi Province, China.
authors.forename: Wenhui
authors.initials: W
authors.lastname: Lu
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an City 710061, Shaanxi Province, China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Cao
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an City 710061, Shaanxi Province, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Qin
keywords: Parkinson’s disease; cognitive impairment; mini-mental state examination; montreal cognitive assessment scale; neuropsychology