Influence of Cognition on Length of Stay and Rehospitalization in Older Veterans Admitted for Post-Acute Care.

OBJECTIVES

Evaluate the relative contribution of cognitive test performance to post-acute care (PAC) length of stay (LOS) and rehospitalization while controlling for key demographic, medical, and functional outcomes.

METHODS

Retrospective medical record review of 160 older Veterans, including cognitive test performance (Addenbrooke's Cognitive Examination-Revised [ACE-R]), on admission to a Veterans Administration Hospital Community Living Center (CLC) PAC.

RESULTS

Individuals with impaired scores on the ACE-R had a longer LOS (10 median days longer; U = 2,547.00, p = .028). Of those rehospitalized, 71.4% (n = 20) screened positive for cognitive impairment. Key medical factors explained the largest amount of variance in CLC-PAC LOS (29.8%), followed by admission ADL (activities of daily living) dependency (4.6%) and ACE-R total score (3.30%).

DISCUSSION: Cognitive screening should be considered on PAC admission, with impairment on ACE-R predicting geriatric rehabilitation outcomes such as risk of increased LOS and rehospitalization.