{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T05:08:13Z","timestamp":1781759293006,"version":"3.54.5"},"reference-count":0,"publisher":"Canadian Geriatrics Society","issue":"1","license":[{"start":{"date-parts":[[2023,3,2]],"date-time":"2023-03-02T00:00:00Z","timestamp":1677715200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can Geriatr J"],"abstract":"<jats:p>Background\nParkinson\u2019s disease (PD) increases risk for dementia and cascading adverse outcomes. The eight-item Montreal Parkinson Risk of Dementia Scale (MoPaRDS) is a rapid, in-office dementia screening tool. We examine predictive validity and other characteristics of the MoPaRDS in a geriatric PD cohort by testing a series of alternative versions and modelling risk score change trajectories. \nMethods\nParticipants were 48 initially non-demented PD patients (Mage = 71.6 years, range = 65\u201384) from a three-year, three-wave prospective Canadian cohort study. A dementia diagnosis at Wave 3 was used to stratify two baseline groups: PD with Incipient Dementia (PDID) and PD with No Dementia (PDND). We aimed to predict dementia three years prior to diagnosis using baseline data for eight indicators that harmon-ized with the original report, plus education. \nResults\nThree MoPaRDS items (age, orthostatic hypotension, mild cognitive impairment [MCI]) discriminated the groups both independently and as a composite three-item scale (area under the curve [AUC] = 0.88). The eight-item MoPaRDS reliably discriminated PDID from PDND (AUC = 0.81). Education did not improve predictive validity (AUC = 0.77). Performance of the eight-item MoPaRDS varied across sex (AUCfemales = 0.91; AUCmales = 0.74), whereas the three-item configuration did not (AUCfemales = 0.88; AUCmales = 0.91). Risk scores of both configurations increased over time.\nConclusions\nWe report new data on the application of the MoPaRDS as a dementia prediction tool for a geriatric PD cohort. Results support the viability of the full MoPaRDS, and indicate that an empirically determined brief version is a promising complement.<\/jats:p>","DOI":"10.5770\/cgj.26.617","type":"journal-article","created":{"date-parts":[[2023,3,22]],"date-time":"2023-03-22T16:13:13Z","timestamp":1679501593000},"page":"176-186","source":"Crossref","is-referenced-by-count":6,"title":["Dementia Risk Prediction in a Longitudinal Geriatric Parkinson\u2019s Disease Cohort: Evaluation and Application of the Montreal Parkinson Risk of Dementia Scale"],"prefix":"10.5770","volume":"26","author":[{"given":"Linzy","family":"Bohn","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. Peggy","family":"McFall","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Myrlene","family":"Gee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronald B.","family":"Postuma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger A.","family":"Dixon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Camicioli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3968","published-online":{"date-parts":[[2023,3,2]]},"container-title":["Canadian Geriatrics Journal"],"original-title":[],"link":[{"URL":"https:\/\/cgjonline.ca\/index.php\/cgj\/article\/download\/617\/888","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/cgjonline.ca\/index.php\/cgj\/article\/download\/617\/899","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/cgjonline.ca\/index.php\/cgj\/article\/download\/617\/888","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,22]],"date-time":"2023-03-22T16:13:14Z","timestamp":1679501594000},"score":1,"resource":{"primary":{"URL":"https:\/\/cgjonline.ca\/index.php\/cgj\/article\/view\/617"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,3,2]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2023,3,2]]}},"URL":"https:\/\/doi.org\/10.5770\/cgj.26.617","relation":{},"ISSN":["1925-8348"],"issn-type":[{"value":"1925-8348","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,3,2]]}}}