12 Questions
What does a 'Yes, a change' response indicate in the AD8 Dementia Screening Interview?
A change in cognitive problems within the last several years
Which activity would be a sign of dementia according to the AD8?
Less interest in hobbies/activities
What is indicated by repeated questions, stories, or statements in the AD8 Dementia Screening Interview?
Problems with memory and cognition
What does forgetting the correct month or year imply in the context of the AD8 Dementia Screening Interview?
Memory issues related to time perception
Why is it recommended to administer the AD8 to an informant, if available?
Informants provide more accurate responses
In the context of the AD8 Dementia Screening Interview, what is the significance of trouble handling complicated financial affairs?
Cognitive impairment affecting financial decision-making
What is the final score calculation method for the AD8 screening test?
Sum of the number of items marked 'Yes, A change'
What does a score of 2 or greater on the AD8 screening test indicate?
Cognitive impairment is likely to be present
Why is it important to have a one-second delay between individual items when administering the AD8 test?
To give the respondent time to think about their response
What does an AD8 score in the 'impaired range' suggest?
Further assessment is necessary
What property of the AD8 indicates its effectiveness in detecting early cognitive changes?
Sensitivity > 84%
What does a score of 0 - 1 on the AD8 screening test suggest?
Normal cognition
Study Notes
AD8 Dementia Screening Interview
- The AD8 is a brief informant interview to detect dementia, consisting of 8 questions.
- The interview is adapted from Galvin JE et al, "The AD8, a brief informant interview to detect dementia", Neurology 2005:65:559-564.
Administration and Scoring Guidelines
- The AD8 can be self-administered or read aloud to the respondent, either in person or over the phone.
- It is preferable to administer the AD8 to an informant, if available.
- If an informant is not available, the AD8 may be administered to the patient.
- The respondent is asked to rate changes in the patient's ability for each of the items, without attributing causality.
Scoring and Interpretation
- The final score is a sum of the number of items marked "Yes, A change".
- A score of 0-1 indicates normal cognition.
- A score of 2 or greater indicates cognitive impairment is likely to be present.
- The AD8 has a sensitivity of > 84%, specificity of > 80%, positive predictive value of > 85%, and negative predictive value of > 70%.
- The area under the receiver operator characteristics (ROC) curve is 0.908, with a 95% confidence interval of 0.888-0.925.
Test your knowledge of the AD8 Dementia Screening Interview form by filling in the blanks with the correct answers. Understand how to detect cognitive problems through a brief informant interview. Adapted from a study by Galvin JE et al.
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