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Open AccessArticle

Characteristics of Mild Cognitive Impairment in Northern Japanese Community-Dwellers from the ORANGE Registry

1
Department of Occupational Therapy, Graduate School of Medicine, Akita University, Akita 010-8543, Japan
2
Integrated Community Support Center, Public Health and Welfare Department, City Hall of Yokote, Akita 013-0525, Japan
3
Advanced Research Center for Geriatric and Gerontology, Akita University, Akita 010-8543, Japan
4
Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi 474-8511, Japan
5
Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan
6
Omori Municipal Hospital, Akita 013-0525, Japan
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2019, 8(11), 1937; https://doi.org/10.3390/jcm8111937
Received: 12 September 2019 / Revised: 3 November 2019 / Accepted: 8 November 2019 / Published: 10 November 2019
(This article belongs to the Special Issue Clinical Medicine for Healthcare and Sustainability)
A gradually increasing prevalence of mild cognitive impairment (MCI) is recognized in the super-aging society that Japan faces, and early detection and intervention in community-dwellers with MCI are critical issues to prevent dementia. Although many previous studies have revealed MCI/non-MCI differences in older individuals, information on the prevalence and characteristics of MCI in rural older adults is limited. The aim of this study was to investigate differential characteristics between older adults with and without MCI. The investigation was conducted over one year from 2018 to 2019. Participants were recruited from Akita in northern Japan. Neuropsychological assessments were applied to classify MCI, including the National Center for Geriatrics and Gerontology Functional Assessment Tool (NCGG-FAT) and the Touch panel-type Dementia Assessment Scale (TDAS) based on the Alzheimer’s disease assessment scale. Our samples consisted of 103 older adults divided into 54 non-MCI and 49 MCI. The MCI group had lower scores of all cognitive items. Our results showed that individuals with MCI had significantly slower walking speed (WS) and worse geriatric depression scale (GDS) compared to non-MCI. In addition, WS was significantly associated with some cognitive items in non-MCI, but not in MCI. Finally, we showed that predictive variables of MCI were WS and GDS. Our study provides important information about MCI in rural community-dwellers. We suggest that older adults living in a super-aging society should receive lower limb training, and avoiding depression in older adults through interaction of community-dwellers may contribute to preventing the onset of MCI. View Full-Text
Keywords: older adults living in super-aging society; mild cognitive impairment; walking speed; depression older adults living in super-aging society; mild cognitive impairment; walking speed; depression
MDPI and ACS Style

Kume, Y.; Takahashi, T.; Itakura, Y.; Lee, S.; Makizako, H.; Ono, T.; Shimada, H.; Ota, H. Characteristics of Mild Cognitive Impairment in Northern Japanese Community-Dwellers from the ORANGE Registry. J. Clin. Med. 2019, 8, 1937.

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