Validity of the Japanese Version of the Quick Mild Cognitive Impairment Screen

Ayako Morita, Rónán O’Caoimh, Hiroshi Murayama, D. William Molloy, Shigeru Inoue, Yugo Shobugawa and Takeo Fujiwara
Additional contact information
Ayako Morita: Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
Rónán O’Caoimh: Clinical Sciences Institute, National University of Ireland Galway, H91 TK33 Galway City, Ireland
Hiroshi Murayama: Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
D. William Molloy: Clinical Sciences Institute, National University of Ireland Galway, H91 TK33 Galway City, Ireland
Shigeru Inoue: Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo 160-8402, Japan
Yugo Shobugawa: Division of International Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8122, Japan
Takeo Fujiwara: Department of Global Health Promotion, Tokyo Medical and Dental University, Tokyo 113-8510, Japan

IJERPH, 2019, vol. 16, issue 6, 1-10

Abstract: Early detection of dementia provides opportunities for interventions that could delay or prevent its progression. We developed the Japanese version of the Quick Mild Cognitive Impairment (Q mci -J) screen, which is a performance-based, easy-to-use, valid and reliable short cognitive screening instrument, and then we examined its validity. Community-dwelling adults aged 65–84 in Niigata prefecture, Japan, were concurrently administered the Q mci -J and the Japanese version of the standardized Mini-Mental State Examination (sMMSE-J). Mild cognitive impairment (MCI) and dementia were categorized using established and age-adjusted sMMSE-J cut-offs. The sample (n = 526) included 52 (9.9%) participants with suspected dementia, 123 (23.4%) with suspected MCI and 351 with likely normal cognition. The Q mci -J showed moderate positive correlation with the sMMSE-J ( r = 0.49, p < 0.001) and moderate discrimination for predicting suspected cognitive impairment (MCI/dementia) based on sMMSE-J cut-offs, area under curve: 0.74, (95%CI: 0.70–0.79), improving to 0.76 (95%CI: 0.72 to 0.81) after adjusting for age. At a cut-off of 60/61/100, the Q mci -J had a 73% sensitivity, 68% specificity, 53% positive predictive value, and 83% negative predictive value for cognitive impairment. Normative data are presented, excluding those with any sMMSE-J < 27. Though further research is required, the Q mci -J screen may be a useful screening tool to identify older adults at risk of cognitive impairment.

Keywords: cognitive impairment; short cognitive screen instrument; Japanese; older adults; screening (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/16/6/917/pdf (application/pdf)
https://www.mdpi.com/1660-4601/16/6/917/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:16:y:2019:i:6:p:917-:d:213852

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().