Screening for cognitive impairment in the elderly: Impact of physical function measures added to cognitive screening instruments

1994 ◽  
Vol 1 (4) ◽  
pp. 261-270 ◽  
Author(s):  
Kenneth Rockwood ◽  
Dean A. Tripp ◽  
Karen Stadnyk ◽  
John Fisk
Keyword(s):  
Cognitive Impairment ◽  
Physical Function ◽  
The Elderly ◽  
Screening Instruments ◽  
Cognitive Screening

Physical activity and cognitive impairment among the elderly in some districts of Ha Nam province in 2018

2021 ◽  
Vol 30 (4) ◽  
pp. 35-41
Author(s):  
Hoang Thi Hai Van ◽  
Dao Anh Son ◽  
Pham Quang Thai
Keyword(s):  
Physical Activity ◽  
Cognitive Impairment ◽  
Elderly People ◽  
The Elderly ◽  
Physical Activities ◽  
International Standards ◽  
Cognitive Screening ◽  
Group Exercise ◽  
Research Subjects ◽  
Significant Difference

The study was conducted on 1,210 elderly people (aged 60 and older) with the purpose of understanding physical activity and cognitive impairment among elderly people in some districts of Ha Nam province in 2018. The results showed that the percentage of elderly people with symptoms of cognitive impairment was high, accounting for 46.36%. There was a significant difference between the rate of cognitive impairment of the group who exercised frequently (41.92%) and that of the group who did not exercise (51.62%) (p<0.05). Compared to the Non-exercise group, the risks of cognitive impairment of group exercise 15 - 45 minutes/week (OR = 0.69; 95% CI: 0.51 - 0.93); group exercise 45 - 90 minute/week group (OR = 0.61; 95% CI: 0.44 - 0.84) and group exercise Over 90 minutes/week (OR = 0.43; 95% CI: 0.27 - 0.67) were all significantly lower. The more time the research subjects exercise, the lower their risk of developing cognitive impairment became. Our finding suggests that physical activities may delay or prevent the onset of cognitive impairment in elderly people. It is necessary to expand research, continue to apply the cognitive screening test based on international standards, while guiding and encouraging elderly people to carry out physical activities according to their capabilities and international recommendations.

scholarly journals Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) completion on an acute care ward for the elderly: a brief study of informant characteristics

2012 ◽  
Vol 24 (10) ◽  
pp. 1700-1701 ◽  
Author(s):  
K. Bloomfield ◽  
N. John
Keyword(s):  
Cognitive Impairment ◽  
Cognitive Decline ◽  
The Elderly ◽  
Confusion Assessment Method ◽  
Assessment Method ◽  
Cognitive Screening ◽  
Screening Algorithm ◽  
Drawing Task ◽  
The Uk ◽  
State Examination

Over recent years in the UK, emphasis has been placed on appropriate diagnosis and referral of patients with dementia. In guidelines published by the British Geriatrics Society (BGS) and Faculty of Old Age Psychiatrists consensus group (Forsyth et al., 2006), a cognitive screening algorithm was developed, which consists of initial screening for cognitive impairment with the Mini-Mental State Examination (MMSE) and CLOX1 (an executive clock drawing task). If the scores meet cut-off points indicated in the algorithm (MMSE <24 or CLOX1 <11), further assessments with the Confusion Assessment Method (CAM) and the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) are applied with the aim to differentiate between delirium (CAM positive, IQCODE negative), delirium and chronic impairment (CAM positive, IQCODE positive), or chronic cognitive impairment (CAM negative, IQCODE positive).

scholarly journals Cognitive screening instruments for dementia: comparing metrics of test limitation

2021 ◽  
Vol 15 (4) ◽  
pp. 458-463
Author(s):  
Andrew J. Larner
Keyword(s):  
Cognitive Impairment ◽  
High Sensitivity ◽  
Misclassification Rate ◽  
Test Accuracy ◽  
Screening Instruments ◽  
Cognitive Screening ◽  
Net Benefit ◽  
Likelihood Ratios ◽  
Sensitivity Specificity ◽  
State Examination

ABSTRACT Cognitive screening instruments (CSIs) for dementia and mild cognitive impairment are usually characterized in terms of measures of discrimination such as sensitivity, specificity, and likelihood ratios, but these CSIs also have limitations. Objective: The aim of this study was to calculate various measures of test limitation for commonly used CSIs, namely, misclassification rate (MR), net harm/net benefit ratio (H/B), and the likelihood to be diagnosed or misdiagnosed (LDM). Methods: Data from several previously reported pragmatic test accuracy studies of CSIs (Mini-Mental State Examination, the Montreal Cognitive Assessment, Mini-Addenbrooke’s Cognitive Examination, Six-item Cognitive Impairment Test, informant Ascertain Dementia 8, Test Your Memory test, and Free-Cog) undertaken in a single clinic were reanalyzed to calculate and compare MR, H/B, and the LDM for each test. Results: Some CSIs with very high sensitivity but low specificity for dementia fared poorly on measures of limitation, with high MRs, low H/B, and low LDM; some had likelihoods favoring misdiagnosis over diagnosis. Tests with a better balance of sensitivity and specificity fared better on measures of limitation. Conclusions: When deciding which CSI to administer, measures of test limitation as well as measures of test discrimination should be considered. Identification of CSIs with high MR, low H/B, and low LDM, may have implications for their use in clinical practice.

scholarly journals Comparing Approaches to Optimize Cut-off Scores for Short Cognitive Screening Instruments in Mild Cognitive Impairment and Dementia

2017 ◽  
Vol 57 (1) ◽  
pp. 123-133 ◽  
Author(s):  
Rónán O’Caoimh ◽  
Yang Gao ◽  
Anton Svendovski ◽  
Paul Gallagher ◽  
Joseph Eustace ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Screening Instruments ◽  
Cognitive Screening

scholarly journals Validity and Reliability of the 6-Item Cognitive Impairment Test for Screening Cognitive Impairment: A Review

2016 ◽  
Vol 42 (1-2) ◽  
pp. 42-49 ◽  
Author(s):  
Dawn O'Sullivan ◽  
Niamh A. O'Regan ◽  
Suzanne Timmons
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Validation Studies ◽  
Secondary Care ◽  
Adverse Outcomes ◽  
Routine Screening ◽  
Screening Instruments ◽  
Cognitive Screening ◽  
Validity And Reliability ◽  
Acute Hospitals

Background: A large proportion of older adults with dementia remain undiagnosed, presenting to hospital with occult dementia, and are at risk for adverse outcomes, especially delirium. Routine screening for cognitive impairment among older adult patients presenting to acute hospitals could help alleviate this problem; however, this is hampered by time constraints, poor knowledge of screening instruments and lack of consensus as to which screening tool is best. Cognitive tests with attention items may be particularly useful in acute settings, given the importance of delirium detection. However, it is crucial that cognitive screening instruments are fast and reliable. Summary: The Six-Item Cognitive Impairment Test (6-CIT) is a feasible instrument for cognitive screening among older adults attending a general practitioner or hospital. Although researchers have investigated its accuracy in diagnosing cognitive impairment in primary and secondary care settings, its validity in primary care use has been questioned and there are limited validation studies on its use in secondary care. Key Messages: This paper presents a review of validation studies conducted on the 6-CIT. We recommend that larger studies, which test the psychometric properties of the 6-CIT in primary and acute care settings, are conducted to establish recommendations for routine screening use.

What is test accuracy? Comparing unitary accuracy metrics for cognitive screening instruments

2019 ◽  
Vol 9 (5) ◽  
pp. 277-281 ◽  
Author(s):  
Andrew J Larner
Keyword(s):  
Cognitive Impairment ◽  
Classification Accuracy ◽  
Operating Characteristic ◽  
Characteristic Curve ◽  
Test Accuracy ◽  
Correct Classification ◽  
Screening Instruments ◽  
Cognitive Screening ◽  
Operating Characteristic Curve ◽  
Accuracy Measures

Aim: To examine four different accuracy metrics for assessment of commonly used cognitive screening instruments: correct classification accuracy, area under the receiver operating characteristic curve, F measure (F) or F1 score and Matthews correlation coefficient (MCC). Methods: Raw data were extracted from test accuracy studies of Mini-Mental State Examination. Montreal Cognitive Assessment, Mini-Addenbrooke's Cognitive Examination, Six-item Cognitive Impairment Test, informant AD8 and Free-Cog, and used to calculate the accuracy measures. Results: Each metric resulted in similar ordering of the screening instruments for diagnosis of both dementia and mild cognitive impairment. Area under the receiver operating characteristic curve gave the highest (most optimistic) and MCC the lowest (most pessimistic) accuracy value for each test examined, with correct classification accuracy and F falling between. Conclusion: All the accuracy measures examined have potential shortcomings. None can be recommended as the definitive unitary outcome measure for test accuracy studies. However, MCC has theoretical advantages and might be more widely adopted.

Cognitive-screening instruments for the elderly

1990 ◽  
Vol 5 (3) ◽  
pp. 10-19 ◽  
Author(s):  
Irma G. Fiedler ◽  
Gerda Klingbeil
Keyword(s):  
The Elderly ◽  
Screening Instruments ◽  
Cognitive Screening
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