title: Racial similarities and differences in predictors of mobility change over eighteen months.
abstract: OBJECTIVE
  To define racial similarities and differences in mobility among community-dwelling older adults and to identify predictors of mobility change.
  
  
  METHODS
  Prospective, observational, cohort study.
  
  
  METHODS
  Nine hundred and five community-dwelling older adults.
  
  
  METHODS
  Baseline in-home assessments were conducted to assess life-space mobility, sociodemographic variables, disease status, geriatric syndromes, neuropsychological factors, and health behaviors. Disease reports were verified by review of medications, physician questionnaires, or hospital discharge summaries. Telephone interviews defined follow-up life-space mobility at 18 months of follow-up.
  
  
  RESULTS
  African Americans had lower baseline life-space (LS-C) than whites (mean 57.0 +/- standard deviation [SD] 24.5 vs. 72.7 +/- SD 22.6; P < .001). This disparity in mobility was accompanied by significant racial differences in socioeconomic and health status. After 18 months of follow-up, African Americans were less likely to show declines in LS-C than whites. Multivariate analyses showed racial differences in the relative importance and strength of the associations between predictors and LS-C change. Age and diabetes were significant predictors of LS-C decline for both African Americans and whites. Transportation difficulty, kidney disease, dementia, and Parkinson's disease were significant for African Americans, while low education, arthritis/gout, stroke, neuropathy, depression, and poor appetite were significant for whites.
  
  
  CONCLUSIONS
  There are significant disparities in baseline mobility between older African Americans and whites, but declines were more likely in whites. Improving transportation access and diabetes care may be important targets for enhancing mobility and reducing racial disparities in mobility.
authors.affiliation: Birmingham/Atlanta VA Geriatric Research, Education, and Clinical Center, University of Alabama, Birmingham, AL 35294, USA. rallman@uab.edu
authors.forename: Richard M
authors.initials: RM
authors.lastname: Allman
authors.forename: Patricia Sawyer
authors.initials: PS
authors.lastname: Baker
authors.forename: Richard M
authors.initials: RM
authors.lastname: Maisiak
authors.forename: Richard V
authors.initials: RV
authors.lastname: Sims
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Roseman
mesh_terms: D001741:Black or African American; D000368:Aged; D005260:Female; D015577:Geriatric Assessment; D015438:Health Behavior; D006302:Health Services Research; D006304:Health Status; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D009483:Neuropsychological Tests; D011446:Prospective Studies; D014186:Transportation; D044465:White People