title: Mobility device use in older adults and incidence of falls and worry about falling: findings from the 2011-2012 national health and aging trends study.
abstract: OBJECTIVE
  To examine the prevalence of mobility device use in community-dwelling older adults in the United States and to investigate the incidence of falls and worry about falling according to type and number of mobility devices used.
  
  
  METHODS
  Analysis of cross-sectional and longitudinal data from the 2011-12 National Health and Aging Trends Study.
  
  
  METHODS
  In-person interviews in the homes of study participants.
  
  
  METHODS
  Nationally representative sample of Medicare beneficiaries (n=7,609).
  
  
  METHODS
  Participants were asked about mobility device use (e.g., canes, walkers, wheelchairs and scooters) in the last month, 1-year fall history and worry about falling.
  
  
  RESULTS
  Twenty-four percent of adults aged 65 and older reported mobility device use in 2011, and 9.3% reported using multiple devices within the last month. Mobility device use increased with advancing age and was associated with nonwhite race and ethnicity, female sex, lower education level, greater multimorbidity, and obesity (all P<.001). Adjusting for demographic and health characteristics and physical function, the incidence of falls and recurrent falls was not associated with the use of multiple devices or any particular type of mobility device. Activity-limiting worry about falling was significantly higher in cane-only users than in nonusers.
  
  
  CONCLUSIONS
  The percentage of older adults reporting mobility device use is higher than results from previous national surveys, and multiple device use is common in those who use any device. Mobility device use is not associated with greater incidence of falls. Cane-only users may compensate for worry about falling by limiting activity.
authors.affiliation: Department of Rehabilitation and Movement Science, University of Vermont, Burlington, Vermont.
authors.forename: Nancy M
authors.initials: NM
authors.lastname: Gell
authors.affiliation: College of Public Health Department of Epidemiology, University of Iowa, Iowa City, Iowa.
authors.forename: Robert B
authors.initials: RB
authors.lastname: Wallace
authors.affiliation: Department of Family and Preventive Medicine, University of California at San Diego, La Jolla, California.
authors.forename: Andrea Z
authors.initials: AZ
authors.lastname: LaCroix
authors.affiliation: Department of Rehabilitation Medicine, University of Washington, Seattle, Washington.
authors.forename: Tracy M
authors.initials: TM
authors.lastname: Mroz
authors.affiliation: Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington.
authors.forename: Kushang V
authors.initials: KV
authors.lastname: Patel
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data*; D000368:Aged; D000369:Aged, 80 and over; D001007:Anxiety / Q000453:epidemiology*; D002183:Canes / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D008137:Longitudinal Studies; D008297:Male; D014853:Walkers / Q000706:statistics & numerical data*; D014910:Wheelchairs / Q000706:statistics & numerical data*
keywords: falls; mobility devices; worry about falls