The NUCOG: Construction and Piloting of a Cognitive Screening Instrument in a Neuropsychiatric Unit

2003 ◽  
Vol 11 (3) ◽  
pp. 325-329 ◽  
Author(s):  
Mark Walterfang ◽  
Dennis Velakoulis ◽  
Andrew Gibbs ◽  
John Lloyd
Keyword(s):  
Mental State ◽  
Mini Mental State Examination ◽  
Screening Instrument ◽  
Face Validity ◽  
Diverse Population ◽  
Screening Instruments ◽  
Cognitive Screening ◽  
Cognitive Screen ◽  
High Degree ◽  
State Examination

Objective: To develop a cognitive screening instrument suitable for a neuropsychiatric inpatient, outpatient and consultation—liaison population. Methods: A number of cognitive screening instruments used clinically and published in the literature were reviewed. A new tool, the Neuropsychiatry Unit Cognitive Screen (NUCOG), was developed on the basis of this review, and piloted in a diverse population of patients in the unit. Conclusions: The NUCOG demonstrated a high degree of face validity, correlation with the Mini-Mental State Examination, and significant scoring differences between demented and non-demented patients.

Assessment of Cognitive Decline in the Elderly by Informant Interview

1988 ◽  
Vol 152 (2) ◽  
pp. 209-213 ◽  
Author(s):  
A. F. Jorm ◽  
A. E. Korten
Keyword(s):  
Cognitive Decline ◽  
Elderly People ◽  
Mental State ◽  
Mini Mental State Examination ◽  
The Elderly ◽  
Screening Instruments ◽  
Cognitive Screening ◽  
Direct Assessment ◽  
State Examination

Cognitive decline in a sample of 64 elderly people was assessed by a standardised informant interview dealing with changes in memory and intelligence which had taken place in the previous 10 years. Scores from the interview were found to correlate (r=0.74) with the Mini-Mental State Examination. Moreover, the informant interview was found to be less affected by pre-morbid ability than the MMSE. Direct assessment of decline by informants may be a solution to the problem of contamination by pre-morbid ability which affects traditional cognitive screening instruments.

scholarly journals Cognitive Abilities Screening: Instrument-Short Form, Mini-Mental State Examination and Functional Activities Questionnaire in the illiterate elderly

2013 ◽  
Vol 7 (4) ◽  
pp. 410-415 ◽  
Author(s):  
Gabriela Pravatta Rezende ◽  
Juliana Cecato ◽  
José Eduardo Martinelli
Keyword(s):  
Correlation Coefficient ◽  
Mental State ◽  
Cognitive Abilities ◽  
Mini Mental State Examination ◽  
Short Form ◽  
Screening Instrument ◽  
Functional Activities ◽  
Brazilian Version ◽  
Diagnosis Of Dementia ◽  
State Examination

ABSTRACT Dementia prevalence is increasing in developing countries due to population aging. Brief tests for assessing cognition and activities of daily living are very useful for the diagnosis of dementia by the clinician. Low education, particularly illiteracy, is a hindrance to the diagnosis of dementia in several regions of the world. Objectives: To compare the Brazilian version of the Cognitive Abilities Screening Instrument-Short Form (CASI-S) with the Mini-Mental State Examination (MMSE) and Pfeffer Functional Activities Questionnaire (PFAQ) for the diagnosis of dementia in illiterate elderly. Methods: A cross-sectional study with illiterate elderly of both genders seen at the outpatient clinics of the Institute of Gerontology and Geriatrics Jundiaí, São Paulo state was performed. Spearman's correlation coefficient was used to correlate CASI-S, MMSE and PFAQ scores. Results: The sample comprised 29 elderly over 57 years old whose mean scores on the CASI-S (scores ranging from 3 to 23) and the MMSE (scores ranging from 2 to 23) were 11.69 and 12.83, respectively. There was a strong significant correlation between the CASI-S and MMSE (r=0.75, p<0.001) and a moderate correlation coefficient that was significant and negative between the PFAQ and CASI-S (r= -0.53 p=0.003),similar to that between the MMSE and PFAQ (r= -0.41 p=0.025). Conclusion: The Brazilian version of the CASI-S demonstrates ease of application and correction in the illiterate elderly, and warrants further studies regarding its applicability for the diagnosis of dementia in populations with a heterogeneous educational background.

scholarly journals Random Forest Model in the Diagnosis of Dementia Patients with Normal Mini-Mental State Examination Scores

2022 ◽  
Vol 12 (1) ◽  
pp. 37
Author(s):  
Jie Wang ◽  
Zhuo Wang ◽  
Ning Liu ◽  
Caiyan Liu ◽  
Chenhui Mao ◽  
...  
Keyword(s):  
Machine Learning ◽  
Cognitive Impairment ◽  
Random Forest ◽  
Mental State ◽  
Mini Mental State Examination ◽  
Machine Learning Algorithms ◽  
Assessment Model ◽  
Test Time ◽  
Cognitive Screening ◽  
State Examination

Background: Mini-Mental State Examination (MMSE) is the most widely used tool in cognitive screening. Some individuals with normal MMSE scores have extensive cognitive impairment. Systematic neuropsychological assessment should be performed in these patients. This study aimed to optimize the systematic neuropsychological test battery (NTB) by machine learning and develop new classification models for distinguishing mild cognitive impairment (MCI) and dementia among individuals with MMSE ≥ 26. Methods: 375 participants with MMSE ≥ 26 were assigned a diagnosis of cognitively unimpaired (CU) (n = 67), MCI (n = 174), or dementia (n = 134). We compared the performance of five machine learning algorithms, including logistic regression, decision tree, SVM, XGBoost, and random forest (RF), in identifying MCI and dementia. Results: RF performed best in identifying MCI and dementia. Six neuropsychological subtests with high-importance features were selected to form a simplified NTB, and the test time was cut in half. The AUC of the RF model was 0.89 for distinguishing MCI from CU, and 0.84 for distinguishing dementia from nondementia. Conclusions: This simplified cognitive assessment model can be useful for the diagnosis of MCI and dementia in patients with normal MMSE. It not only optimizes the content of cognitive evaluation, but also improves diagnosis and reduces missed diagnosis.

Comparison of the Mini-Mental State Examination and Computerized Brief Cognitive Screening Test as Cognitive Screening Tools in Patients with Mild Cognitive Impairment

2021 ◽  
Vol 18 ◽  
Author(s):  
Che-Sheng Chu ◽  
I-Chen Lee ◽  
Chuan-Cheng Hung ◽  
I-Ching Lee ◽  
Chi-Fa Hung ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Normal Control ◽  
Internal Consistency ◽  
Mental State ◽  
Screening Test ◽  
Mini Mental State Examination ◽  
Cognitive Screening ◽  
Validity And Reliability ◽  
State Examination

Background: The aim of this study was to establish the validity and reliability of the Computerized Brief Cognitive Screening Test (CBCog) for early detection of cognitive impairment. Method: One hundred and sixty participants, including community-dwelling and out-patient volunteers (both men and women) aged ≥ 65 years, were enrolled in the study. All participants were screened using the CBCog and Mini-Mental State Examination (MMSE). The internal consistency of the CBCog was analyzed using Cronbach’s α test. Areas under the curves (AUCs) of receiver operating characteristic analyses were used to test the predictive accuracy of the CBCog in detecting mild cognitive impairment (MCI) in order to set an appropriate cutoff point. Results: The CBCog scores were positively correlated with the MMSE scores of patients with MCI-related dementia (r = 0.678, P < .001). The internal consistency of the CBCog (Cronbach’s α) was 0.706. It was found that the CBCog with a cutoff point of 19/20 had a sensitivity of 97.5% and a specificity of 53.7% for the diagnosis of MCI with education level ≥ 6 years. The AUC of the CBCog for discriminating the normal control elderly from patients with MCI (AUC = 0.827, P < 0.001) was larger than that of the MMSE for discriminating the normal control elderly from patients with MCI (AUC= 0.819, P < .001). Conclusion: The CBCog demonstrated to have sufficient validity and reliability to evaluate mild cognitive impairment, especially in highly educated elderly people.

scholarly journals Converting from the Montreal Cognitive Assessment to the Mini-Mental State Examination-2

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254055
Author(s):  
Hwabeen Yang ◽  
Daehyuk Yim ◽  
Moon Ho Park
Keyword(s):  
Mental State ◽  
Cognitive Assessment ◽  
Mini Mental State Examination ◽  
Intraclass Correlation ◽  
Montreal Cognitive Assessment ◽  
Cognitive Screening ◽  
Conversion Table ◽  
Linear Smoothing ◽  
Log Linear ◽  
State Examination

Objective The Montreal Cognitive Assessment (MoCA) and Mini-Mental State Examination-2 (MMSE-2) are useful psychometric tests for cognitive screening. Many clinicians want to predict the MMSE-2 score based on the MoCA score. To facilitate the transition from the MoCA to the MMSE-2, this study developed a conversion method. Methods This study retrospectively examined the relationship between the MoCA and MMSE-2. Overall, 303 participants were evaluated. We produced a conversion table using the equipercentile equating method with log-linear smoothing. Then, we evaluated the reliability and accuracy of this algorithm to convert the MoCA to the MMSE-2. Results MoCA scores were converted to MMSE-2 scores according to a conversion table that achieved a reliability of 0.961 (intraclass correlation). The accuracy of this algorithm was 84.5% within 3 points difference from the raw score. Conclusions This study reports a reliable and easy conversion algorithm for transforming MoCA scores into converted MMSE-2 scores. This method will greatly enhance the utility of existing cognitive data in clinical and research settings.

Validity of the Mini-Mental State Examination as a Screening Instrument for Cognitive Impairment and Dementia in French Elderly Community Residents

1990 ◽  
Vol 9 (3) ◽  
pp. 143-150 ◽  
Author(s):  
Michèle Gagnon ◽  
Luc Letenneur ◽  
Jean-François Dartigues ◽  
Daniel Commenges ◽  
Jean-Marc Orgogozo ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mental State ◽  
Mini Mental State Examination ◽  
Screening Instrument ◽  
Community Residents ◽  
State Examination
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