J Korean Neuropsychiatr Assoc.  2004 Mar;43(2):209-218.

Development of an Informant Report Questionnaire for Dementia Screening: Seoul Informant Report Questionnaire for Dementia(SIRQD)

Affiliations
  • 1Department of Psychiatry, College of Medicine, Seoul National University, Seoul, Korea. jiwoomd@plaza.snu.ac.kr
  • 2Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
  • 3Department of Neuropsychiatry, Kyunggi Provincial Hospital for the Elderly, Yongin, Korea.
  • 4Department of Neuropsychiatry, Daejin Medical Center, Seongnam, Korea.
  • 5Department of Psychiatry, College of Medicine, Kangwon National University, Chunchon, Korea.

Abstract


OBJECTIVES
This study aimed to develop an informant report questionnaire for dementia screening and to verify its reliability and validity.
METHODS
A preliminary questionnaire with 30 items was administered to a reliable informant for each of 81 dementia patients and 166 normal controls. Through item analyses, the 15-item Seoul Informant Report Questionnaire for Dementia (SIRQD) was clraum up. Internal consistency and inter-informant correlation were analyzed. Factor analysis and ROC curve analysis were also performed.
RESULTS
SIRQD was found to have high internal consistency and inter-informant reliability. Optimal cut-off score of SIRQD was 9/10, and the sensitivity and specificity at that score were .850 and .873, respectively. SIRQD was composed of four major factors (remote memory, recent memory, language, and activity of daily living). SIRQD was closely equivalent to MMSE-KC in terms of overall dementia screening ability, and it appeared efficient in discriminating very mild dementia from normal. SIRQD showed low false positive and negative rates, irrespective of levels of education, age, and sex.
CONCLUSION
SIRQD possess good psychometrical properties and is probably very useful to screen dementia, especially for the Korean elderly with a very wide range of educational background.

Keyword

Dementia; Screening; Questionnaire; Informant; SIRQD

MeSH Terms

Aged
Dementia*
Education
Humans
Mass Screening*
Memory
Surveys and Questionnaires*
Reproducibility of Results
ROC Curve
Sensitivity and Specificity
Seoul*
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