title: Evaluation of cognition in cancer patients: special focus on the elderly.
abstract: OBJECTIVE
  The risks of both cognitive dysfunction and most cancers increase with age. A literature review was undertaken to identify how cognitive issues in older patients were being assessed in the oncology literature.
  
  
  METHODS
  A systematic literature search was undertaken using a number of different search terms and databases to find all relevant articles in oncology and internal medicine journals.
  
  
  RESULTS
  Eighty-eight articles were included in the review. Just over half of the articles studied a mixture of cancer types and had fewer than 100 patients. The vast majority of patients being studied were <65 years of age. While a little over half of the articles used >or=3 neuropsychological tests to assess cognition, more than 60 different tests were used to assess cognition. Forty-one percent of the studies were prospective trials, with most of the rest divided between cross-sectional and observational. One-fifth of the articles involved patients at end-of-life.
  
  
  CONCLUSIONS
  The oncology literature contains little information about cognition in older cancer patients. More systematic and comprehensive studies of this important aspect of cancer care in the elderly are necessary.
authors.affiliation: The University of Chicago, Department of Medicine, Sections of Geriatrics and Hematology/Oncology, 5841 S. Maryland Avenue, MC 6098, Chicago, IL 60637, United States. abial@medicine.bsd.uchicago.edu
authors.forename: Andrea K
authors.initials: AK
authors.lastname: Bial
authors.forename: Richard L
authors.initials: RL
authors.lastname: Schilsky
authors.forename: Greg A
authors.initials: GA
authors.lastname: Sachs
mesh_terms: D000368:Aged; D003072:Cognition Disorders / Q000523:psychology*; D006801:Humans; D009369:Neoplasms / Q000145:classification / Q000523:psychology*