When Dementia is in the House

When Dementia is in the House
Preview Tool (PDF)

Practice Recommendations

Adapted with permission from Registered Nurses Association of Ontario, Nursing Best Practice Guideline: Screening for Delirium, Dementia and Depression in Older Adults, November, 2003


Deterioration Cognitive Observee (DECO)

The DECO questionnaire is to be completed by a person, such as a family member, who has had at least monthly contact with the client for the last 3 years.

A. Instruct the person who is completing the form to:

  • Consider how their relative was a year ago. Explain that the questions they are answering relate to everyday situations – the decisions are based on what they know about the person who is suspected of having an illness that has affected how the person is thinking and behaving.
  • Direct the person filling out the form to indicate their answers as either: Better or about the same (2), Not as well (1), Much worse (0).

B. Scoring the form:

  • The total score may range from 0 (indicates considerable change) to 38 (indicates no change). A score of less than 30 indicates high likelihood of dementia and warrants further investigation and referral.
Please fill out the form below if you would like to order printed versions of the selected Tool. The tool is free, but shipping and handling will be charged. We will get back to you with the details. If you want to print a PDF version of the tool yourself - please click on the "PREVIEW" link above.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

National Initiative for the Care of the Elderly (NICE)
246 Bloor Street West, Room 234
Toronto, Ontario M5S 1V4, Canada