PMID- 33269221 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201230 IS - 2220-3206 (Print) IS - 2220-3206 (Electronic) IS - 2220-3206 (Linking) VI - 10 IP - 11 DP - 2020 Nov 19 TI - Best early-onset Parkinson dementia predictor using ensemble learning among Parkinson's symptoms, rapid eye movement sleep disorder, and neuropsychological profile. PG - 245-259 LID - 10.5498/wjp.v10.i11.245 [doi] AB - BACKGROUND: Despite the frequent progression from Parkinson's disease (PD) to Parkinson's disease dementia (PDD), the basis to diagnose early-onset Parkinson dementia (EOPD) in the early stage is still insufficient. AIM: To explore the prediction accuracy of sociodemographic factors, Parkinson's motor symptoms, Parkinson's non-motor symptoms, and rapid eye movement sleep disorder for diagnosing EOPD using PD multicenter registry data. METHODS: This study analyzed 342 Parkinson patients (66 EOPD patients and 276 PD patients with normal cognition), younger than 65 years. An EOPD prediction model was developed using a random forest algorithm and the accuracy of the developed model was compared with the naive Bayesian model and discriminant analysis. RESULTS: The overall accuracy of the random forest was 89.5%, and was higher than that of discriminant analysis (78.3%) and that of the naive Bayesian model (85.8%). In the random forest model, the Korean Mini Mental State Examination (K-MMSE) score, Korean Montreal Cognitive Assessment (K-MoCA), sum of boxes in Clinical Dementia Rating (CDR), global score of CDR, motor score of Untitled Parkinson's Disease Rating (UPDRS), and Korean Instrumental Activities of Daily Living (K-IADL) score were confirmed as the major variables with high weight for EOPD prediction. Among them, the K-MMSE score was the most important factor in the final model. CONCLUSION: It was found that Parkinson-related motor symptoms (e.g., motor score of UPDRS) and instrumental daily performance (e.g., K-IADL score) in addition to cognitive screening indicators (e.g., K-MMSE score and K-MoCA score) were predictors with high accuracy in EOPD prediction. CI - (c)The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved. FAU - Byeon, Haewon AU - Byeon H AD - Department of Medical Big Data, College of AI Convergence, Inje University, Gimhae 50834, Gyeonsangnamdo, South Korea. bhwpuma@naver.com. LA - eng PT - Journal Article DEP - 20201119 PL - United States TA - World J Psychiatry JT - World journal of psychiatry JID - 101610480 PMC - PMC7672787 OTO - NOTNLM OT - Discriminant analysis OT - Early-onset Parkinson dementia OT - Ensemble learning method OT - Naive Bayesian model OT - Neuropsychological test OT - Risk factor COIS- Conflict-of-interest statement: No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article. EDAT- 2020/12/04 06:00 MHDA- 2020/12/04 06:01 PMCR- 2020/11/19 CRDT- 2020/12/03 05:47 PHST- 2020/07/21 00:00 [received] PHST- 2020/09/27 00:00 [revised] PHST- 2020/10/11 00:00 [accepted] PHST- 2020/12/03 05:47 [entrez] PHST- 2020/12/04 06:00 [pubmed] PHST- 2020/12/04 06:01 [medline] PHST- 2020/11/19 00:00 [pmc-release] AID - 10.5498/wjp.v10.i11.245 [doi] PST - epublish SO - World J Psychiatry. 2020 Nov 19;10(11):245-259. doi: 10.5498/wjp.v10.i11.245. eCollection 2020 Nov 19.