title: Residential ethnic segregation and stroke risk in Mexican Americans: the Brain Attack Surveillance in Corpus Christi project.
abstract: OBJECTIVE
  Residential ethnic segregation may operate through multiple mechanisms to increase stroke risk. The current study evaluated if residential ethnic segregation was associated with stroke risk in a bi-ethnic population.
  
  
  METHODS
  Incident strokes were identified in Nueces County, Texas from 2000 to 2010. Residential ethnic segregation (range: 0-1) was derived for each census tract in the county (n=64) using 2000 US Census data, and categorized into: predominantly non-Hispanic White (NHW, <.3); ethnically mixed (.3-.7); predominantly Mexican American (MA, >.7). Multilevel Poisson regression models were fitted separately for NHWs and MAs to assess the association between residential ethnic segregation (predominantly NHW referent) and relative risk for stroke, adjusted for age category, sex and census tract-level median per capita income. Effect modification by age was also examined.
  
  
  RESULTS
  In adjusted models, residential ethnic segregation was not associated with stroke risk in either ethnic group. Effect modification by age was significant in both groups. Young MAs and NHWs living in predominantly MA census tracts were at greater relative risk for stroke than those living in predominantly NHW census tracts, but this association was only significant for MAs (MAs: RR = 2.38 [95% CI: 1.31-4.31]; NHWs: RR = 1.53 [95% CI: .92-2.52]).
  
  
  CONCLUSIONS
  Our findings demonstrate that residential ethnic segregation may influence downstream stroke risk in young MAs. Pathways between residential ethnic segregation and stroke in young MAs should be explored.
authors: Rajiv C
authors: RC
authors: Patel
authors: Jonggyu
authors: J
authors: Baek
authors: Melinda A
authors: MA
authors: Smith
authors: Lewis B
authors: LB
authors: Morgenstern
authors: Lynda D
authors: LD
authors: Lisabeth
mesh_terms: D000368:Aged; D015897:Comorbidity; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D017058:Mexican Americans; D008875:Middle Aged; D011159:Population Surveillance; D015995:Prevalence; D012111:Residence Characteristics; D012307:Risk Factors; D020521:Stroke / Q000453:epidemiology* / Q000208:ethnology*; D013781:Texas / Q000453:epidemiology