title: Neighborhood social capital and achieved mobility of older adults.
abstract: OBJECTIVE
  Evaluate associations of neighborhood social capital and mobility of older adults.
  
  
  METHODS
  A community-based survey (Philadelphia, 2010) assessed mobility (Life-Space Assessment [LSA]; range = 0-104) of older adults (n = 675, census tracts = 256). Social capital was assessed for all adults interviewed from 2002-2010 (n = 13,822, census tracts = 374). Generalized estimating equations adjusted for individual- and neighborhood-level characteristics estimated mean differences and 95% confidence intervals (CIs) in mobility by social capital tertiles. Interactions by self-rated health, living arrangement, and race were tested.
  
  
  RESULTS
  Social capital was not associated with mobility after adjustment for other neighborhood characteristics (mean difference for highest versus lowest tertile social capital = 0.79, 95% CI = [-3.3, 4.8]). We observed no significant interactions. In models stratified by race, Black participants had higher mobility in high social capital neighborhoods (mean difference = 7.4, CI = [1.0, 13.7]).
  
  
  CONCLUSIONS
  Social capital may not contribute as much as other neighborhood characteristics to mobility. Interactions between neighborhood and individual-level characteristics should be considered in research on mobility.
authors.affiliation: Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, PA, USA alr143@pitt.edu.
authors.forename: Andrea L
authors.initials: AL
authors.lastname: Rosso
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Drexel University, Philadelphia, PA, USA.
authors.forename: Loni P
authors.initials: LP
authors.lastname: Tabb
authors.affiliation: Geographic Information Systems and Spatial Analysis Laboratory, College of Information Science and Technology, Drexel University, Philadelphia, PA, USA.
authors.forename: Tony H
authors.initials: TH
authors.lastname: Grubesic
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Drexel University, Philadelphia, PA, USA.
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Taylor
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Drexel University, Philadelphia, PA, USA.
authors.forename: Yvonne L
authors.initials: YL
authors.lastname: Michael
mesh_terms: D001741:Black or African American / Q000706:statistics & numerical data; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D051346:Mobility Limitation; D015143:Philadelphia; D012111:Residence Characteristics / Q000706:statistics & numerical data*; D066270:Social Capital; D012959:Socioeconomic Factors; D016138:Walking / Q000706:statistics & numerical data*; D044465:White People / Q000706:statistics & numerical data
keywords: aging; mobility; neighborhoods; social capital