J Korean Neuropsychiatr Assoc.
2005 Sep;44(5):612-618.
Two Consecutive 6-Year Follow-ups of the MMSEK in the Rural Elderly
- Affiliations
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- 1Department of Psychiatry, Catholic University of Daegu School of Medicine, Daegu, Korea.
Abstract
OBJECTIVES
To examine the changing pattern of cognitive function in old age.
METHODS
Longitudinal observation of MMSEK performances of the elderly living in a rural community through 2 consecutive 6-year follow-ups. The mean, standard deviation, and coefficient of variability of the three consecutive MMSEK performances with 6-year interval were indicators of the changing pattern. Paired t-test was used for comparison of two consecutive MMSEK performances : MMSEK-90 vs MMSEK-96 and MMSEK-96 vs MMSEK-02, while Student's t-test for comparison between the first and second 6-year changes of the MMSEK performance.
RESULTS
In all age groups, the MMSEK performance declined significantly during the two consecutive 6-year periods, the standard deviation and coefficient of variability widened with age, and the second 6-year decline of the MMSEK performance was significantly greater than the first 6-year decline.
CONCLUSION
Decline of the cognitive function is steeper in the elderly with age and the declining pattern is the 'fan-spread' shape.
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