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KMID : 1118520130100040359
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Psychiatry Investigation
2013 Volume.10 No. 4 p.359 ~ p.364
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Cornell Scale for Depression in Dementia: Study of Residents in a Northern Thai Long-Term Care Home
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Wongpakaran Nahathai
Wongpakaran Tinakon
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Abstract
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Objective: This study aimed to analyse the validity of the Thai version of the Cornell Scale for Depression in Dementia (CSDD) when using DSM-IV criteria.
Methods: A cross-sectional study was carried out of 84 elderly residents in a residential care home setting in Thailand. The participants went through a comprehensive geriatric assessment which included a Mini-Mental State Examination, a Mini-International Neuropsychiatric Interview (MINI) and use of the CSDD tool. A ROC analysis was performed in order to test the validity of the CSDD as against the DSM-IV when used by the MINI.
Results: ROC analysis revealed a better score for those areas found under the curve for the CSDD-as against the DSM-IV criteria (0.96). With a cut-off score of >6, the CSDD yielded the highest sensitivity score (100%), plus produced a specificity of 81% and a negative predictive value of 100%. It also had a positive predictive value of 69%. The validity of the CSDD was found to be better for the group experiencing cognitive impairment than with the non-cognitive impairment group in terms of the agreement of CSDD items between patients and caregivers. The CSDD yielded a high internal consistency (Cronbach’s alpha=0.87).
Conclusion: CSDD is a valid tool to use for identifying depressive disorders among Thai LTC home residents - those experiencing and those not experiencing cognitive impairment.
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KEYWORD
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The Cornell Scale for Depression in Dementia (CSDD), Validity, Thai
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