J Korean Neuropsychiatr Assoc.
2006 Sep;45(5):401-410.
The Korean Version of 4th Revision of Schizophrenia Quality of Life Scale: Validation Study and Relationship with PANSS
- Affiliations
-
- 1Schizophrenia Research Group, Seoul National Hospital, Seoul, Korea. kimjinhun@schizophrenia-research.com
- 2Department of General Psychiatry, Seoul National Hospital, Seoul, Korea.
- 3Department of Psychiatry, Yonsei University College of Medicine, Seoul, Korea.
- 4Subdivision of Child & Adolescent Psychiatry, Department of Neuropsychiatry, KyungHee University College of Medicine, Seoul, Korea.
- 5Oxford Outcomes Ltd, The Old Barn, Jericho Farm, Cassington, Oxford, OX29 4SZ, UK.
Abstract
OBJECTIVES
The present study was performed to verify the validity and value of 4th revision of Schizophrenia Quality of Life Scale (SQLS-R4) as an assessment tool in a Korean-language version (SQLS-R4K).
METHODS
The subjects for present study were 174 patients with a diagnosis of schizophrenia as defined by DSM-IV. The SQLS-R4K was administered together with self-report Korean version of World Health Organization Quality of Life-Brief Scale (WHOQOL-BREF) to assess validity. A subset of respondents also completed the SQLS-R4K for a second time to assess test-retest reliability. To evaluate the relationship SQLS-R4K and clinical characteristics, psychotic symptoms and general functioning were evaluated using the Positive and Negative Syndrome Scale (PANSS) and the Global Assessment of Functioning Scale (GAF) score respectively.
RESULTS
All the scales of SQLS-R4K showed good internal consistency reliability. The correlations of items with their scale total revealed that all items were significantly correlated with their own scale score. In test-retest reliability, paired t-tests indicated that responses did not alter significantly between the two assessment. There was moderate correlation between WHOQOL-BREF sub-scores and SQLS-R4K score total. Also relevant correlations between PANSS, current GAF and SQLS-R4K were proved.
CONCLUSION
From the results of the testing the reliability and validity of the SQLS-R4K, it is concluded that the SQLS-R4K is a simple and reliable scale for measuring quality of life in schizophrenic patients.
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