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KMID : 0978920000010040034
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Korean Journal of Clinical Geriatrics
2000 Volume.1 No. 4 p.34 ~ p.41
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A 7Minute Screen for Korean Alzheimer’s Disease-Validity&Reliablity
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Oh Byoung-Hoon
Lee Jung-Hyun
Lee Byung-Ook
An Suk-Kyoon
Lee Pil-Goo
Yoo Kae-Joon
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Abstract
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Backgroud: The early diagnosis of Alzheimer’s disease enables prompt and proper treatment. Therefore, the necessity of a screening test for the early diagnosis of Alzheimer’s disease cannot be overly emp띠sized. The ‘7 minute screen” test developed by Paul S. Solomon shows high sensitivity in early Alzheimer’s disease screening and has merits in being able to be performed within a relatively short period of time. This study had translated the “7 minute screen” test adaptable for Koreans, and evaluated its capability as a standard tool for the screening of early Alzheimer’s disease in aspects of the tests reliability and validity.
Methods: : The subject group consisted of 36 persons diagnosed with Alzheimer’s disease and an age and education level matched group was determined as the control. The “7 minute screen” Korean version test comprised of a Benton temporal orientation test, enhanced cued recall test, clock drawing test, and verb외 fluency along with MMSE-K, CDR, BDRS, and GDS were implemented and evaluated. For measurements of interrater reliability, two test examiners simultaneously evaluated the results of the “7 minute screen” and for measurements of test -retest reliability, re -evaluations were done 1 month later.
Results : The results of all 4 components of the ‘7 minute screen” between the subject and the control groups showed statistically significant differences (p< .05). Also, evaluation of the contraction rate of Alzheimer’s disease according to the scores of MMSE-K and “7 minute screen” by receiver operating characteristic analysis showed a MMSE-K area under the ROC curve (AUC) value of 0.901 and a “7 minute screen” AUC value of 0.814 resulting in no statistical significance (p=0.111). How-ever, the results of the high and low risk grou~ by the “7 minute screen” had a 92% sensitivity, 37 % specificity, 62% positive predictive value, and an 88% negative predictive value. The interrater reliab피ty
was 0.97 and the test-retest reliability was 0.75. The average time needed in completing the “7 minute screen” was statistical significant being 12 minutes 21 seconds in the subject group and 10 minutes 5 seconds in the control group (p<.05) .
Conclusion: The implementation of the “7 minute screen” as a diagnostic tool for Alzheimer’s disease has been verified, however, the validity of the test for its use in the Korean elderly is insufficient. Therefore, for the “7 minute screen” to be a valuable tool for the screening of Alzheimer’s disease in the Korean elderly, the components and standard values of the test needs to be m。이fied ac cor띠ng to culture ar띠 education in order to increase the tests specficity and validity.
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KEYWORD
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7 minute screen, Alzheimer’s disease, Validity, Realiability
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