Comparison of the clock test and a questionnaire - based test for screening for cognitive impairment in Nigerians
West Afr. j. med
; : 212-218, 2006.
Article
in English
| AIM
| ID: biblio-1273381
Responsible library:
CG1.1
ABSTRACT
Background:
Since it is projected that by 2020 seventy percent of the elderly will reside in developing countries; a reliable screening method for dementia and cognitive impairment in general in populations with diverse languages; culture; education and literacy will be needed. We sought to determine if the Clock Test; a screening test for dementia; was suitable for use in a Nigerian population. Studydesign:
Cross-sectional survey of 54 men and 12 women from Northern Nigeria. Researchers administered two dementia screening tools a questionnaire-based test adapted for use in a Nigerian population and the Clock Test.Results:
Overall; 53.0of the subjects had an abnormal Clock Test whereas 10.6of the subjects had an abnormal questionnaire score. Only 9.1of the subjects had abnormal scores on both tests. Subjects with more schooling had a greater probability of having a positive clock concept (understanding that a circle represented a clock). Of those with more than 6 years of schooling; 91.0had a positive clock concept. Subjects with a negative clock concept were more likely to have an abnormal Clock Test (93.3) than a questionnaire (26.6).Conclusions:
The main finding of our study was the discrepancy between the results of the Clock Test and the questionnaire. Performance on the Clock Test appeared to have been heavily influenced by education level; indicating the test is not universally applicable across cultures. The questionnaire-based test appears to reduce the effects of illiteracy on assessing dementia in a Nigerian population. Larger studies should be done to control for how education affects the assessment of dementia
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Index:
AIM (Africa)
Main subject:
Mass Screening
/
Dementia
Type of study:
Diagnostic study
/
Prognostic study
/
Screening study
Language:
English
Journal:
West Afr. j. med
Year:
2006
Type:
Article
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