J Korean Geriatr Soc.
2006 Jun;10(2):67-76.
Reliability and Validity of Korean Brief Comprehensive Geriatric Assessment Questionnaire
- Affiliations
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- 1Department of Preventive Medicine, Seoul National University College of Medicine, Korea.
- 2Department of Internal Medicine, Inje University School of Medicine, Seoul Paik Hospital, Korea. insoonkwon@hanmail.net
- 3Department of Family Medicine, College of Medicine, Seoul National University, Korea.
- 4Department of Family Medicine, College of Medicine, Hallym University, Korea.
- 5Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Korea.
- 6Department of Family Medicine, College of Medicine, Kyung Hee University, Korea.
- 7Department of Internal Medicine, Sungkyunkwan University School of Medicine, Korea.
- 8Korea Institute of Health and Social Affairs, Korea.
Abstract
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Background: The purpose of this study was to evaluate the applicability of the Korean Brief Comprehensive Geriatric Assessment Questionnaire through testing the reliability and validity of it.
Methods
Questionnaire consisted of items on medical, functional, mental, socioeconomic status and lifestyle was administered as test-retest on 78 elderly outpatients at 6 university hospitals in Seoul, Korea. Weighted kappa value, kappa value, Pearson correlation coefficients and overall percent agreement were calculated to measure reliability. Validity coefficient was estimated by using reliability coefficient.
Results
Reliability coefficients and validity coefficients were higher than 0.50 (fair or good) for 28 items (87.5%) among 32. For test- retest reliability, median was 1.00 (range, 0.87-1.00) for overall percent agreement, 0.66 (range, 0.27~1.00) for kappa value, and 0.83 (range, 0.65~1.00) for Pearson's correlation coefficients. Differences of reliability and validity were identified by gender for 19 items (59.4%), and by age group for 12 items (37.5%).
Conclusion
The Korean Brief Comprehensive Geriatric Assessment Questionnaire appears to be a reliable and valid screening tool. After additional study is performed, this instrument can be used as a useful tool for comprehensive outpatient geriatric assessment.
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