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Development and validation of the Pictorial Cognitive Screening Inventory for illiterate people with dementia

Authors Park S, Park SE, Kim MJ, Jung HY, Choi JS, Park KH, Kim I, Lee JY

Received 15 March 2014

Accepted for publication 13 May 2014

Published 23 September 2014 Volume 2014:10 Pages 1837—1845

DOI https://doi.org/10.2147/NDT.S64151

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Soowon Park,1,* Se-Eun Park,1,* Min-Ji Kim,2 Hee-Yeon Jung,1,2 Jung-Seok Choi,1,2 Kee-Hwan Park,3 Inhye Kim,1 Jun-Young Lee1,2

1Department of Neuropsychiatry, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea; 2Department of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul, Republic of Korea; 3Department of Psychology, The Catholic University of Korea, Bucheon, Republic of Korea

*These authors contributed equally to this work

Purpose: The purpose of this study was to develop and validate a tool called the Pictorial Cognitive Screening Inventory (PCSI), which consists of pictorial memory and attention tests that are not influenced by literacy level.
Patients and methods: PCSI, Mini Mental State Examination (MMSE), and Clinical Dementia Rating (CDR) questionnaires were administered to 80 elderly participants (20 illiterate normal, 20 illiterate with dementia, 20 literate normal, and 20 literate with dementia).
Results: PCSI scores were highly correlated with those of the MMSE (r 0.51) and the CDR (r -0.71). In addition, the PCSI scores differed significantly between the normal group and the dementia group (mean difference 1.71, standard error [SE] 0.14, P<0.001), while no such difference was observed between the illiterate group and the literate group (mean difference 0.00, SE 0.24, P=0.997). Diagnostic validity of the PCSI is excellent, with a sensitivity of 90% and a specificity of 98% for screening dementia, whereas the MMSE has a sensitivity of 85% and a specificity of 60%.
Conclusion: These results indicate that the PCSI is a sensitive and reliable test for screening dementia, regardless of an individual’s literacy skills. The PCSI meets the increasing needs for screening of dementia in illiterate elderly populations in developing countries.

Keywords: screening, dementia, literacy, cognition
 

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