Improving precision in the quantification of cognition using the Montreal Cognitive Assessment and the Mini-Mental State Examination.
نویسندگان
چکیده
BACKGROUND The Montreal Cognitive Assessment (MoCA) can be used to quantify cognitive ability in older persons undergoing screening for cognitive impairment. Although highly sensitive in detecting mild cognitive impairment, its measurement precision is weakest among persons with milder forms of impairment. We sought to overcome this limitation by integrating information from the Mini-Mental State Examination (MMSE) into the calculation of cognitive ability. METHODS Data from 185 geriatric outpatients screened for cognitive impairment with the MoCA and the MMSE were Rasch analyzed to evaluate the extent to which the MMSE items improved measurement precision in the upper ability ranges of the population. RESULTS Adding information from the MMSE resulted in a 13.8% (13.3-14.3%) reduction in measurement error, with significant improvements in all quartiles of patient ability. The addition of three-word repetition and recall, copy pentagons, repeat sentence, and write sentence improved measurement of cognition in the upper levels of ability. CONCLUSIONS The algorithm presented here maximizes the yield of available clinical data while improving measurement of cognitive ability, which is particularly important for tracking changes over time in patients with milder levels of impairment.
منابع مشابه
Cognitive Impairment in Patients with Coronary Artery Disease; Comparison of Montreal Cognitive Assessment (MoCA) and Mini Mental State Examination (MMSE)
Background & Objective: Mild cognitive impairment (MCI) is a transient state between normal condition and dementia. Available data indicates that coronary artery diseases (CAD) may increase the risk of MCI. Hence, the early detection of MCI can prevent the progression of cognitive decline. Materials & Methods: A sample of 65 subjects with degrees of CAD was enrolled to the study. For cogniti...
متن کاملEvaluating the Montreal Cognitive Assessment (MoCA) and the Mini Mental State Exam (MMSE) for Cognitive Impairment Post Stroke: A Validation Study against the Cognistat
متن کامل
Is the montreal cognitive assessment superior to the mini-mental state examination in detecting subtle cognitive impairment among middle-aged outpatient U.S. Military veterans?
The Montreal Cognitive Assessment (MoCA) is a relatively newly designed test that was developed as a tool to screen patients with mild cognitive problems that are not typically detected by the Mini-Mental State Exam (MMSE). While early research suggests that the MoCA is more sensitive to subtle cognitive impairment than the MMSE, there is concern about potential decreased specificity when using...
متن کاملComparison of the Montreal Cognitive Assessment and Mini Mental State Examination Performance in Patients with Parkinson’s Disease with w Low Educational Background
Recognition of early cognitive impairment in Parkinson ́s disease (PD) is important since it represents a risk factor for developing Parkinson’s disease dementia and psychosis. The MiniMental State Examination (MMSE) remains the most commonly used screening instrument for global cognition, even though it has not been specifically validated for use in PD subjects. More recently, the Montreal Cogn...
متن کاملConversion between mini-mental state examination, montreal cognitive assessment, and dementia rating scale-2 scores in Parkinson's disease.
Cognitive impairment is one of the earliest, most common, and most disabling non-motor symptoms in Parkinson's disease (PD). Thus, routine screening of global cognitive abilities is important for the optimal management of PD patients. Few global cognitive screening instruments have been developed for or validated in PD patients. The Mini-Mental State Examination (MMSE), Montreal Cognitive Asses...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- International psychogeriatrics
دوره 23 7 شماره
صفحات -
تاریخ انتشار 2011