title: Gene polymorphisms in association with self-reported stroke in US adults.
abstract: OBJECTIVE
  Epidemiologic studies suggest that several gene variants increase the risk of stroke, and population-based studies help provide further evidence. We identified polymorphisms associated with the prevalence of self-reported stroke in US populations using a representative sample.
  
  
  METHODS
  Our sample comprised US adults in the Third National Health and Nutrition Examination (NHANES III) DNA bank. We examined nine candidate gene variants within ACE, F2, F5, ITGA2, MTHFR, and NOS3 for associations with self-reported stroke. We used multivariate regression and Cox proportional hazards models to test the association between these variants and history of stroke.
  
  
  RESULTS
  In regression models, the rs4646994 variant of ACE (I/I and I/D genotypes) was associated with higher prevalence adjusted prevalence odds ratio [APOR] = 2.66 [1.28, 5.55] and 2.23 [1.30, 3.85], respectively) compared with the D/D genotype. The heterozygous genotype of MTHFR rs1801131 (A/C) was associated with lower prevalence of stroke (APOR = 0.48 [0.25, 0.92]) compared with A/A and C/C genotypes. For rs2070744 of NOS3, both the C/T genotype (APOR = 1.91 [1.12, 3.27]) and C/C genotype (APOR = 3.31 [1.66, 6.60]) were associated with higher prevalence of stroke compared with the T/T genotype.
  
  
  CONCLUSIONS
  Our findings suggest an association between the prevalence of self-reported stroke and polymorphisms in ACE, MTHFR, and NOS3 in a population-based sample.
authors.affiliation: National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA.
authors.forename: Amy Z
authors.initials: AZ
authors.lastname: Fan
authors.forename: Jing
authors.initials: J
authors.lastname: Fang
authors.forename: Ajay
authors.initials: A
authors.lastname: Yesupriya
authors.forename: Man-Huei
authors.initials: MH
authors.lastname: Chang
authors.forename: Greta
authors.initials: G
authors.lastname: Kilmer
authors.forename: Meaghan
authors.initials: M
authors.lastname: House
authors.forename: Donald
authors.initials: D
authors.lastname: Hayes
authors.forename: Renée M
authors.initials: RM
authors.lastname: Ned
authors.forename: Nicole F
authors.initials: NF
authors.lastname: Dowling
authors.forename: Ali H
authors.initials: AH
authors.lastname: Mokdad
keywords: NHANES III; gene; gene association analysis; polymorphisms; stroke