This study was based on baseline data derived from a large prospective study called the Suwon Project (SP), a cohort comprising random clustering samples of elderly people, all of whom are ethnic Koreans aged over 60 years.
There is growing evidence supporting the protective effect of health behaviors against cognitive decline and dementia in older persons. With this increasing evidence and a better understanding of the underlying mechanisms, lifestyle modification is likely to be increasingly promoted as a convincing strategy for maintaining cognitive health in later life. The study protocol included cognitive screening through the Korean version of the Mini-Mental State Examination (K-MMSE), which has been validated for the Korean-speaking population ({YW, 1997 #88}Kang YW et al., 1997), recording of the subject's medical history. A Korean study in the community defined the cut-off point of K-MMSE score during the screening of dementia as 17/18 points; the sensitivity and specificity of the findings were 91% and 86%, respectively ({YW, 1997 #88}Kim et al., 2003). Based on these results, we defined cognitive impairment (CI) as the group that had a K-MMSE score lower than 17, and not cognitive impairment (NCI) was defined as the group that had a K-MMSE score higher than 18.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
1,115
Usual care participants in the group A received no additional services.
Participants in the group B received bimonthly telephonic care management based on manual.
Participants in the group C received monthly the same telephonic care management and educational materials as those in the group B.
Change of Cognitive Function Measured by a Mini Mental State Examination Scores on a Scale According to Study Group
The mini-mental state examination (MMSE) or Folstein test is a brief 30-point questionnaire test that is used to screen for cognitive impairment. It ranges from 0 to 30 points. The higher scores mean better outcome. It is also used to estimate the severity of cognitive impairment at a given point in time and to follow the course of cognitive changes in an individual over time, thus making it an effective way to document an individual's response to treatment. In the time span of about 10 minutes it samples various functions including arithmetic, memory and orientation.
Time frame: baseline and 18 months
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Participants in the group D received health educator-initiated visit counseling bimonthly.
Participants in the group E received health educator-initiated visit counseling bimonthly and reward.