title: The mini-mental Parkinson's (MMP) as a cognitive screening tool in people with Parkinson's disease.
abstract: BACKGROUND
  Cognitive decline is common in Parkinson's disease (PD) but may not be adequately identified by the mini-mental state examination (MMSE), which is better suited to Alzheimer's disease. The mini-mental Parkinson (MMP) examination is a cognitive screening tool designed in French specifically for PD. We aimed to establish the validity and reliability of the English language version of the MMP compared with the MMSE.
  
  
  METHODS
  People with various stages of PD underwent testing with the MMP and MMSE, which was then compared with a reference standard battery of neuropsychological tests to identify those with significant cognitive impairment.
  
  
  RESULTS
  Forty-nine patients were recruited. Both the MMP and MMSE were significantly correlated with scores on all the neuropsychological tests in the validation battery. The median MMP score was proportionally lower (80% of maximum) than the MMSE (90% of maximum) in PD patients with cognitive impairment and those with prior neuropsychiatric complications but there was no difference between the MMP and MMSE in areas under the curves (0.84) for detecting cognitive impairment. Test-retest reliability of the MMP was good (intra-class correlation coefficient 0.793). An MMP of 28 or lower out of 32 detected cognitive impairment with 87% sensitivity and 76% specificity.
  
  
  CONCLUSIONS
  The English language version of the MMP has now been validated. It detects more cognitive deficits in PD patients than the MMSE and identifies significant cognitive impairment in those with PD at least as well as the MMSE.
authors.forename: Robert
authors.initials: R
authors.lastname: Caslake
authors.forename: Fiona
authors.initials: F
authors.lastname: Summers
authors.forename: Douglas
authors.initials: D
authors.lastname: McConachie
authors.forename: Catriona
authors.initials: C
authors.lastname: Ferris
authors.forename: Joanna
authors.initials: J
authors.lastname: Gordon
authors.forename: Clare
authors.initials: C
authors.lastname: Harris
authors.forename: Linda
authors.initials: L
authors.lastname: Caie
authors.affiliation: Dept of Old Age Medicine, Institute of Applied Medicine, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD, UK. bob.caslake@abdn.ac.uk.
authors.forename: Carl
authors.initials: C
authors.lastname: Counsell
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003071:Cognition; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000150:complications / Q000175:diagnosis* / Q000523:psychology; D011237:Predictive Value of Tests; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires