title: Setting eligibility criteria for a care-coordination benefit.
abstract: OBJECTIVE
  To examine different clinically relevant eligibility criteria sets to determine how they differ in numbers and characteristics of individuals served.
  
  
  METHODS
  Cross-sectional analysis of the 2000 wave of the Health and Retirement Study (HRS), a nationally representative longitudinal health interview survey of adults aged 50 and older.
  
  
  METHODS
  Population-based cohort of community-dwelling older adults, subset of an ongoing longitudinal health interview survey.
  
  
  METHODS
  Adults aged 65 and older who were respondents in the 2000 wave of the HRS (n=10,640, representing approximately 33.6 million Medicare beneficiaries).
  
  
  METHODS
  Three clinical criteria sets were examined that included different combinations of medical conditions, cognitive impairment, and activity of daily living/instrumental activity of daily living (ADL/IADL) dependency.
  
  
  RESULTS
  A small portion of Medicare beneficiaries (1.3-5.8%) would be eligible for care coordination, depending on the criteria set chosen. A criteria set recently proposed by Congress (at least four severe complex medical conditions and one ADL or IADL dependency) would apply to 427,000 adults aged 65 and older in the United States. Criteria emphasizing cognitive impairment would serve an older population.
  
  
  CONCLUSIONS
  Several criteria sets for a Medicare care-coordination benefit are clinically reasonable, but different definitions of eligibility would serve different numbers and population groups of older adults.
authors.affiliation: Department of Family Medicine, University of Michigan, Ann Arbor, Michigan, USA. ccigolle@umich.edu
authors.forename: Christine T
authors.initials: CT
authors.lastname: Cigolle
authors.forename: Kenneth M
authors.initials: KM
authors.lastname: Langa
authors.forename: Mohammed U
authors.initials: MU
authors.lastname: Kabeto
authors.forename: Caroline S
authors.initials: CS
authors.lastname: Blaum
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D019090:Case Management / Q000191:economics*; D002908:Chronic Disease / Q000191:economics* / Q000453:epidemiology; D003072:Cognition Disorders / Q000191:economics / Q000453:epidemiology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D019468:Disease Management; D004608:Eligibility Determination; D005260:Female; D015577:Geriatric Assessment; D006306:Health Surveys; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D006278:Medicare / Q000331:legislation & jurisprudence*; D008875:Middle Aged; D012179:Retirement; D014481:United States / Q000453:epidemiology