IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i13p6708-d579593.html
   My bibliography  Save this article

Performance of the Cognitive Performance Scale of the Resident Assessment Instrument (interRAI) for Detecting Dementia amongst Older Adults in the Community

Author

Listed:
  • Susan Gee

    (Psychiatry of Old Age Academic Unit, Burwood Hospital, Private Bag 4708, Christchurch 8140, New Zealand)

  • Matthew Croucher

    (Psychiatry of Old Age Academic Unit, Burwood Hospital, Private Bag 4708, Christchurch 8140, New Zealand)

  • Gary Cheung

    (Auckland Mail Centre, Department of Psychological Medicine, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand)

Abstract

The Cognitive Performance Scale (CPS) in the widely used interRAI suite of instruments is of interest to clinicians and policy makers as a potential screening mechanism for detecting dementia. However, there has been little evaluation of the CPS in home care settings. This retrospective diagnostic study included 134 older adults (age ≥ 65) who were discharged from two acute psychogeriatric inpatient units or assessed in two memory clinics. The reference test was a diagnosis of clinical dementia, and the index test was interRAI CPS measured within 90 days of discharge. The overall accuracy of the CPS was good, with an area under the Receiver Operating Characteristic curve of 0.82 (95% CI = 0.75–0.89). The optimal cut point was 1/2, coinciding with the recommended cut point, with good sensitivity (0.90, 95% CI = 0.81–0.96) but poor specificity (0.60, 95% CI = 0.46–0.72). Positive predictive value improved from 0.72 (95% CI = 0.66–0.78) to 0.89 (95% CI = 0.75–0.96) when using a cut point of 2/3 instead of 1/2. If the results of the present study are replicated with more generalisable interRAI samples, older adults with a CPS of 3 or above, but without a formal diagnosis of dementia, should be referred for further cognitive assessment.

Suggested Citation

  • Susan Gee & Matthew Croucher & Gary Cheung, 2021. "Performance of the Cognitive Performance Scale of the Resident Assessment Instrument (interRAI) for Detecting Dementia amongst Older Adults in the Community," IJERPH, MDPI, vol. 18(13), pages 1-9, June.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:13:p:6708-:d:579593
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/13/6708/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1660-4601/18/13/6708/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:18:y:2021:i:13:p:6708-:d:579593. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.