Folstein, M. F.(1975)らが開発した簡易な認知機能検査であるMini-Mental State Examination(MMSE)は,臨床的有用性が高く,様々な分野の認知機能検査として用いられてきている。しかし,原版及び既に訳出されている日本語版ともに,重症度の判別基準は,まだ示されていない。そこで,今回,われわれは,改変した日本語版MMSE-Aino(MMSE-A)を作成し標準化を行い,さらに,MMSE-Aに重症度判別基準を適用した。その結果,MMSE-Aの平均点±標準偏差は,重度認知障害群で4.6±4.1,中等度認知障害群で11.2±3.8,軽度認知障害群で16.9±3.5,境界域認知障害群で19.1±2.4となった。また,MMSE-Aは,HDS-R(Hasegawa Dementia Scale-Revised)及びNDS(Nishimura Dementia Scale)との併存的妥当性が非常に高いことが確認された。また,MMSE-Aの再検査信頼性もきわめて高く,高い内的整合性と高い信頼性をもっていることが確認された。The Mini-Mental State Examination (MMSE) developed by Folstein et al. (1975) is a simple test for several cognitive functions. However, the Impediments distinction standard has not been shown as for both original editions and existing Japanese versions yet. In this study, we have tried to standardize the Revised Japanese version of the MMSE-Aino (MMSE-A). Then, the distinction standard of cognitive function impediments was applied to MMSE-A, and the following result was obtained : the mean scores of MMSE-A were 4.6±4.1 in seriously cognitive impairment group, 11.2±3.8 in medium cognitive impairment group, 16.9±3.5 in slight cognitive impairment group, and 19.1±2.4 in borderline cognitive impairment group, respectively. It was recognized that there was a significant correlation between the scores of MMSE-A and the scores of HDS-R (Hasegawa Dementia Scale-Revised), and also between the scores of MMSE-A and the scores of NDS (Nishimura Dementia Scale), indicating the concurrent validity of MMSE-A was very high. Moreover, the test-retest reliability of MMSE-A and the internal consistency were very high
