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Journal of Nursing ›› 2023, Vol. 30 ›› Issue (8): 12-16.doi: 10.16460/j.issn1008-9969.2023.08.012

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Role of Subjective Cognitive Decline Questionnaire 21 in cognitive assessment of elderly people in nursing homes

LI Hui-yuan, GUO Xue-qi, TANG Qi-qun, HU Hui-ju, YANG Jiao, CHEN Yao   

  1. School of Nursing and Rehabilitation, North China University of Science and Technology, Tangshan 063210, China
  • Received:2022-12-03 Published:2023-05-12

Abstract: Objective To compare the application value of Subjective Cognitive Decline Questionnaire 21 (SCD-Q21) and Subjective Cognitive Decline Questionnaire (SCD-Q) in cognitive assessment of elderly people in nursing homes, and to provide theoretical guidance for effective identification of elderly people with cognitive decline. Methods A total of 416 elderly people in 6 nursing homes in Hebei Province were selected by convenience sampling. General Information Questionnaire, SCD-Q21, and SCD-Q, and Montreal Cognitive Assessment (MoCA) were used for the investigation. The receiver operating characteristic (ROC) curve, optimal threshold, cross check accuracy and positive likelihood ratio of the scales were analyzed. Results Taking MoCA as reference, the area under ROC curve of SCD-Q21 and SCD-Q was 0.897 and 0.809, respectively, and the difference between the areas under ROC curve was 0.088 (Z=4.343, P<0.001). The optimal cutoff value for SCD-Q21 and SCD-Q was 9.250 and 8.500, respectively. The sensitivity, specificity, cross-test accuracy and positive likelihood ratio was 0.822, 0.881, 0.815, 6.930 and 0.798, 0.810, 0.750, 4.200, respectively. Conclusion Compared with the Self-subjective Cognitive Assessment Questionnaire in SCD-Q, SCD-Q 21 is more suitable for evaluating the cognitive function of elderly people in nursing homes.

Key words: cognitive function, subjective cognitive decline, subjective cognitive decline, nursing home

CLC Number: 

  • R47
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