Brief Methodological Reports
Screening for Delirium Using Family Caregivers: Convergent Validity of the Family Confusion Assessment Method and Interviewer-Rated Confusion Assessment Method
Version of Record online: 5 OCT 2012
© 2012, Copyright the Authors Journal compilation © 2012, The American Geriatrics Society
Journal of the American Geriatrics Society
Volume 60, Issue 11, pages 2121–2126, November 2012
How to Cite
J Am Geriatr Soc 60:2121–2126, 2012.
- Issue online: 13 NOV 2012
- Version of Record online: 5 OCT 2012
- Confusion Assessment Method (CAM);
To explore agreement between the Family Confusion Assessment Method (FAM-CAM) for delirium identification and interviewer-rated CAM delirium ratings.
Exploratory analysis of agreement.
Fifty-two family caregivers and 52 elderly adults with preexisting impairment according to standardized cognitive testing.
The interviewer-rating for delirium was determined by fulfillment of the CAM algorithm
The total sample included 52 paired CAM:FAM-CAM assessments completed across 52 dyads of elderly adults with preexisting cognitive impairment and family caregivers. The point prevalence of delirium was 13% (7/52). Characteristics did not differ significantly between the groups with and without delirium. The FAM-CAM questions that mapped directly to the original four-item CAM algorithm had the best overall agreement with the interviewer-rated CAM (kappa = 0.85, 95% confidence interval (CI) = 0.65–1.0), sensitivity of 88% (95% CI = 47–99%), and specificity of 98% (95% CI = 86–100%).
The FAM-CAM is a sensitive screening tool for detection of delirium in elderly adults with cognitive impairment using family caregivers, with relevance for research and clinical practice.