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Associations Between Mild Cognitive Impairment and Hospitalization and Readmission
Author(s) -
Callahan Kathryn E.,
Lovato James F.,
Miller Michael E.,
Easterling Doug,
Snitz Beth,
Williamson Jeff D.
Publication year - 2015
Publication title -
journal of the american geriatrics society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.992
H-Index - 232
eISSN - 1532-5415
pISSN - 0002-8614
DOI - 10.1111/jgs.13593
Subject(s) - medicine , odds ratio , hazard ratio , dementia , confidence interval , cognition , randomized controlled trial , medical prescription , incidence (geometry) , placebo , physical therapy , gerontology , psychiatry , physics , alternative medicine , disease , pathology , optics , pharmacology
Objectives To determine whether older adults with mild cognitive impairment ( MCI ), a condition not previously explored as a risk factor, have more hospitalizations and 30‐day readmissions than those with normal cognition. Design Post hoc analysis of prospectively gathered data on incident hospitalization and readmission from the Ginkgo Evaluation of Memory Study ( GEMS ), a randomized, double‐blind, placebo‐controlled trial designed to assess the effect of Ginkgo biloba on incidence of dementia. Setting GEMS was conducted in five academic medical centers in the United States. Participants Community‐dwelling adults aged 75 and older with normal cognition (n = 2,314) or MCI (n = 428) at baseline cognitive testing (N = 2,742). Measurements Index hospitalization and 30‐day hospital readmission, adjusted for age, sex, race, education, clinic site, trial assignment status, comorbidities, number of prescription medications, and living with an identified proxy. Results MCI was associated with a 17% greater risk of index hospitalization than normal cognition (adjusted hazard ratio ( aHR ) = 1.17, 95% confidence interval ( CI ) = 1.02–1.34)). In participants who lived with a proxy, MCI was associated with a 39% greater risk of index hospitalization ( aHR = 1.39, 95% CI = 1.17–1.66). Baseline MCI was not associated with greater odds of 30‐day hospital readmission (adjusted odds ratio = 0.90, 95% CI = 0.60–1.36). Conclusion MCI may represent a target condition for healthcare providers to coordinate support services in an effort to reduce hospitalization and subsequent disability.