title: Cognitive decline one year after hospitalization in older adults without dementia.
abstract: OBJECTIVE
  We studied cognitive functioning 1 year after hospitalization (T2) in patients at least 65 years old without cognitive impairment at baseline (T1).
  
  
  METHODS
  Cognition was assessed using the Mini-Mental State Examination (MMSE) at both time points. We included 211 (114 women) patients with a mean age of 78.3 (SD 7.0) years and an MMSE score of 24 and above.
  
  
  RESULTS
  At T2, 69 (32.7%) patients had an MMSE score below 24. In participants with MMSE 24-26 at T1, cognitive decline was related to impaired physical self-maintenance, a decline in the performance of the instrumental activities of daily living, impaired hearing and less reading ability. In participants with MMSE 27-30, cognitive decline was associated with higher comorbidity (Charlson Index) and impaired physical self-maintenance and hearing.
  
  
  CONCLUSIONS
  A reduced functioning level and increased comorbidity predicted a decline in cognitive functioning.
authors.affiliation: Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. Anne-Sofie.Helvik@ntnu.no
authors.forename: Anne-Sofie
authors.initials: AS
authors.lastname: Helvik
authors.forename: Geir
authors.initials: G
authors.lastname: Selbæk
authors.forename: Knut
authors.initials: K
authors.lastname: Engedal
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology*; D000368:Aged; D000369:Aged, 80 and over; D003071:Cognition / Q000502:physiology*; D060825:Cognitive Dysfunction / Q000175:diagnosis*; D015897:Comorbidity; D003704:Dementia / Q000175:diagnosis*; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006309:Hearing / Q000502:physiology*; D006760:Hospitalization; D006801:Humans; D016014:Linear Models; D008297:Male; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D014785:Vision, Ocular / Q000502:physiology*