Back to Journals » Neuropsychiatric Disease and Treatment » Volume 11

The association between the subjective memory complaints scale and depressive state and cognitive impairment: a factor analysis

Authors Tomita T, Yasui-Furukori N, Sugawara N, Takahashi I, Sawada K, Nakamura K

Received 1 August 2015

Accepted for publication 28 August 2015

Published 23 November 2015 Volume 2015:11 Pages 2935—2941


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Prof. Dr. Roumen Kirov

Peer reviewer comments 4

Editor who approved publication: Dr Roger Pinder

Tetsu Tomita,1 Norio Yasui-Furukori,1 Norio Sugawara,1,2 Ippei Takahashi,3 Kaori Sawada,3 Kazuhiko Nakamura1

1Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, 2Aomori Prefectural Center for Mental Health and Welfare, Aomori, 3Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan

Background: We aimed to discriminate individuals with depressive state from individuals with cognitive impairment among community-dwelling people using the subjective memory complaints (SMC) scale.
Methods: The study group consisted of 289 volunteers (over 60 years old; 104 males and 185 females). Participants’ SMCs were assessed using the SMC scale. The Japanese version of the Center for Epidemiologic Studies for Depression scale and the Mini-Mental State Examination were administered. Participants whose Center for Epidemiologic Studies for Depression scores were 16 or higher were defined as the depressive group and participants whose Mini-Mental State Examination scores were less than 24 were defined as the cognitive impairment group. Exploratory factor analysis was performed to identify the factor structure of the items of the SMC scale. A multiple logistic regression analysis of the association between depressive state and cognitive impairment and the score of each factor was performed.
Results: In the final factor analysis model, six items of the SMC scale remained, and a two-factor structure was adequate. Factor 1 included the items 8, 9, and 10 about thought or the ability to think; thus, Factor 1 was defined as “thought disturbance factor”. Factor 2 included the items 1, 2, and 4 about memory or forgetfulness; thus, Factor 2 was defined as “memory disturbance factor”. In the multiple logistic regression analysis, Factor 1 was significantly associated with depressive state and Factor 2 was significantly associated with cognitive impairment.
Conclusion: For individuals with SMCs, we might be able to discriminate depressive state or depression from cognitive impairment or dementia through a detailed investigation using the SMC scale.

Keywords: geriatric psychiatry, affective disorders, primary care

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]


Other articles by this author:

Prevalence of major depressive disorder among hemodialysis patients compared with healthy people in Japan using the Structured Clinical Interview for DSM-IV

Tomita T, Yasui-Furukori N, Sugawara N, Ogasawara K, Katagai K, Saito H, Sawada K, Takahashi I, Nakamura K

Neuropsychiatric Disease and Treatment 2016, 12:2503-2508

Published Date: 30 September 2016

Insomnia in patients on hemodialysis for a short versus long duration

Tomita T, Yasui-Furukori N, Oka M, Shimizu T, Nagashima A, Mitsuhashi K, Saito H, Nakamura K

Neuropsychiatric Disease and Treatment 2016, 12:2293-2298

Published Date: 2 September 2016

Readers of this article also read:

mTOR signaling in the neuropathophysiology of depression: current evidence

Réus GZ, Quevedo J, Rodrigues AL

Journal of Receptor, Ligand and Channel Research 2015, 8:65-74

Published Date: 23 November 2015

Green synthesis of water-soluble nontoxic polymeric nanocomposites containing silver nanoparticles

Prozorova GF, Pozdnyakov AS, Kuznetsova NP, Korzhova SA, Emel’yanov AI, Ermakova TG, Fadeeva TV, Sosedova LM

International Journal of Nanomedicine 2014, 9:1883-1889

Published Date: 16 April 2014

Methacrylic-based nanogels for the pH-sensitive delivery of 5-Fluorouracil in the colon

Ashwanikumar N, Kumar NA, Nair SA, Kumar GS

International Journal of Nanomedicine 2012, 7:5769-5779

Published Date: 15 November 2012

A novel preparation method for silicone oil nanoemulsions and its application for coating hair with silicone

Hu Z, Liao M, Chen Y, Cai Y, Meng L, Liu Y, Lv N, Liu Z, Yuan W

International Journal of Nanomedicine 2012, 7:5719-5724

Published Date: 12 November 2012

Cross-linked acrylic hydrogel for the controlled delivery of hydrophobic drugs in cancer therapy

Deepa G, Thulasidasan AK, Anto RJ, Pillai JJ, Kumar GS

International Journal of Nanomedicine 2012, 7:4077-4088

Published Date: 27 July 2012

Crystallization after intravitreal ganciclovir injection

Pitipol Choopong, Nattaporn Tesavibul, Nattawut Rodanant

Clinical Ophthalmology 2010, 4:709-711

Published Date: 14 July 2010